Vietnam Multiple Entry Visa

Can anyone help me? I am from Canada and I am planning on going to Southeast Asia for 6 months starting next fall. I am assuming from what I have read I can only stay in Vietnam for a maximum of 90 days. Is this true? If I could I would stay in Vietnam for the entire six months but I am not sure this is possible. What is my best option for a visa that would be the cheapest? Any help would be great. Thanks, Brodie.

I am an airline employee who will be traveling on a space available pass. I am not sure which airport I will enter, as it could change according to availability. If my Evisa states entry as Ho Chi Minh City, but I have to enter through Hanoi, is that acceptable?

what shall i entered the Intended length of stay in Viet Nam (number of days) for multiple entry

Hi Ma'am / Sir, I am a Philippine passport holder and currently working in malaysia..i am planning to visit Vietnam(Da Nang)..is it possible for me to apply for multi-entry (3months) visa?

If traveling by plane from Ho Chi Minh City to Hanoi do I need a multiple entry visa or is single entry ok

I am travelling on a Cunard cruise, visiting 3 ports in Vietnam - 16 March 2024 Hue or Da Nang 08:00-20:00; 18 March Nha Trang 06:00-17:00 and 20 March 2024 Ho Chi Minh City 06:00-18:00. Please advise what entry visa I will need.

Hello, I am a US citizen flying to Vietnam at the end of the week. I am afraid my e-visa will not be approved in time. Is it possible to apply for an urgent visa through a company at the same time that my e-visa request is still being processed? Thanks in advance!

Hello, I am an Australian passport holder. I am flying from London to Melbourne, with a 4 hour connection in Hanoi. 3 weeks later, I am flying from Melbourne to London, with a connection in Ho Chi Minh, then transiting via domestic flight to Hanoi, followed by a flight from Hanoi to London. All with Vietnam Airlines. I've already applied for a multiple entry visa. I thought I needed a visa to transit through Hanoi for the outbound, and have since discovered it's not required. Therefore, I listed my point of entry and exit on my Evisa application as Hanoi. Will this be okay for my return journey, where I fly into Ho Chi Minh first? Thanks Will

Hi I am Canadian and I am currently in Vietnam on a single entry Visa. I plan to leave next week to Hong Kong for maybe a week and come back to Vietnam. Can I apply for an e-Visa while I am in Vietnam (as I am afraid it may not be granted on time if I apply in Hong Kong).

Hi, I am UK citizen passport holder. How many times in one year could I visit Vietnam on a 3 month tourist e visa? Thanks.

Hi, I want to apply for a Multiple-entry evisa via Vietnam gov webpage. I will enter Saigon and then exit to Bangkok. Then re-enter at Hanoi, travel to Saigon then exit Saigon to Sydney. So my entry/exit checkpoints will be different. I am not sure what to enter in Entry checkpoint and exit checkpoint? Can you help? Will the Multiple-entry visa will I be able to enter and exit Vietnam at different airports (SGN or HAN)? Thanks

we are entering Vietnam for tourism. We will enter by air at Ho Chi Minh City, then exit by boat at Chau Doc into Cambodia, then re-enter via air at Danang then leave by plane from Hanoi. Will we need 2 visa applications each or is there a way to list these destinations on the one application?

I was granted a single entry Visa but my travel plans changed and I will be entering Vietnam twice. Will re-applying for another single entry Visa void the one I was already granted? Or should I re-apply for a multi-entry Visa?

I have a pre approved immigration letter and plan to get my multi entry visa at HCMC airport. Arrival date in Vietnam Nov 1, 2023 Travel to Thailand Nov 11, 2023. Travel from Thailand back to Hanoi Nov 20, 2023 Depart Hanoi Nov 21, 2023. On the NA1 application form item 14 it asks for the intended length of stay in Vietnam. Should I fill in the total trip days or only the actual days while in Vietnam? Willy van Kemenade

I am US citizen. I have a multiple entry e-visa. My entry point is DaNang. I will first enter in Da Nang and leave the country then 3 days later enter in HoChiMinh. Will I have any problems entering HoChiMinh?

Hi. I have a multiple entry visa but am now arriving one week earlier than the notes original visa entry date. Will I be able to enter the country?

I have a TRC valid until 2024. I am planning to leave the country next week and re-enter on a new business visa with a new company. Will this be a problem if I still have an active TRC. I was planning on cancelling the TRC as soon as I get back, but there isn't enough time left to do it now.

I came to Vietnam on a tourist visa on arrival last week i them went to Japan can I enter Vietnam again next week for 2 days before flying back to the uk ? So two visits in 2 weeks

When I apply for multiple entry visa it only allows entry and exit through one city but I’m transiting through Ho chi minh on the way (overnight) and Hanoi on the way back (overnight). Do technically I’m entering two cities and exiting two cities. Do I just choose one?

Hi, I am an Australian citizen and will be flying into HCMC on 22 Sept 2023, and plan to go to Phu Quoc Island on 25 Sept 2023 and then back to HCMC. Do I need a multiple entry evisa or only single entry eVisa is required. Thank you!

Hi, I'm Indonesian passport holder. I entered VN on Aug 23 2023 and exit VN on Sept 1 2023. If I wanna enter VN again on Sept 18 2023, do I need visa? If yes, can I apply multiple entry visa via Vietnam e-Visa?

Hi, Im from Canada and Im planing to fly to HMC city on 24/10/23 and returning to Canada on 7/11/23. I'm also planning another trip to Vietnam for next March staying for about 2 weeks then fly to Singapore for a few days then come back to Vietnam again for maybe less than a week. What time of Visa would I need.

Hi I’m flying to Hanoi from the U.K. arriving on 10/11/23 and returning to the U.K. on the 14/12/23 from Hanoi whilst in Vietnam I intend to visit my son in Thailand for a week then back to Vietnam what visa would I need thank you

Hello I’m flying to Ho Chi Minh on Nov 6, 2023. Exiting Vietnam on Nov 7th to Hong Cong for a cruise. The cruise is fro Hong Cong to Singapore with 3 seaports in Vietnam. We are returning ti Vietnam on Nov 30th via air to Phu Quoc for 5 days. Then finally back to Ho Chi Minh on Dec 5th to catch a flight home on Dec 6th. I understand that the new multiple entry Visa will be open to apply mid August. As stated above will I be able to obtain a 30 day multiple entry Visa for Vietnam?

Hello, I am a Belgian citizen and will be entering Vietnam the August 16th. From there on I will go to Cambodia for around 5 days and then return to Vietnam. Is it already possible to apply for a multiple entry visa online? Kind regards, Lore

Hi, I am US passport holder, and I have applied the evisa (it has been issued) with a single entry to Vietnam. I applied for 30 days from July 31 to August 30th. However, I need to leave Vietnam to Singapore and back to Vietnam for 4 days around August 12th to 16th, what can I do in this case?

Hi, we are irish passport holders, and have already applied & been issued with single entry visas for Vietnam. We stay in Vietnam for 18 days then travel to Cambodia & Laos for a 7/8 days. We then return to Hanoi, Vietnam for 1 night for our flight home. Do we need a multiple entry visa? Many thanks for your help. Kind regards

Hi ! As a french passeport holder, I will be entering Vietnam on 10 august 2023, leave the 14 for Cambodia, and come back the 16 in Vetnam. Will I have to be subject to a multi-entry visa or my visa waiver is valid for each entry ? Thank you.

Hello, I am an Australian passport holder. I will be entering Vietnam on 16 August and then travel to Cambodia for 3 days before returning to Vietnam (into HCM City) on 29 August. As such, I will need a multiple entry visa. Please explain which visa is best. Thank you. Andrew

I have applied for an E-Visa for my trip to Vietnam for 17 days from 24/07/23 to 09/08/23. I then go to Cambodia for 2 days and return to Vietnam via Ho Chi Minh City airport to get a flight back to the UK on 11/08/23. I think I will need to go through immigration to check in for the flight back to the UK. What kind of visa do I need for the re-entry to leave immigration at Ho Chi Min airport to check in for our next flight?

Hello, We are flying from Paris to Manilla on 15th August (with valid French passports). Our flight is via Hanoi (16th August : 6:25 - 17th August : 1:45) so we wish leave the airport. Then, we will fly from Manilla to Hanoi on 27th August, and stay in Vietnam until 09th September. What is the procedure to follow ? The French embassy refers me to the Vietnamese immigration service, which does not answer me. Thanks

Hello, I am flying from Siem Reap to Hanoi on 24th July. After a few days there I'm flying to Bali for a few weeks. My flight back to the UK is from Ho Chi Minh on 20th August. What type of visa do I need and where would be the best place to get it? Thanks

Hi we are entering Vietnam on 2nd September then going into Cambodia on 4th and fly back into Vietnam on 11th. Should I wait and apply for a one month multi entry when available online on 25th August or will that be too late? What is the best way to apply?

Hello, I have been granted an evisa next month to enter Vietnam for holiday. I didn't realise that currently it's a one entry only. I plan to travel from Vietnam to Korea and then come back to Vietnam and then return home to Australia. I'm entering Vietnam on Aug 11th. Vietnam to South Korea Aug 17th. South Korea to Vietnam on the Aug 27th. Vietnam to Australia Sept 2nd. I know the evisa will change next month for multi entry but that's not until the 15th aug. Can I apply for a second entry now or do I wait until after aug to apply again with the new visa? Thank you

I have an E-Visa with entry date of July 12th which I will use to exit the Ho Chi Minh City Airport as I have another flight after 13 hours to Delhi. I will come back to HCMC Airport from Delhi to stay for 4 days before I fly to my final destination which is Melbourne. Can I apply for another single entry Visa now? Is it allowed to have more than one single entry e-visas? Or do I need to use the first Visa first and then apply for the new one? If I have to apply for a new one, I will be able to apply that on Wednesday (12/7) from the Airport but will I have it by Monday (17/7) ? I just want to make sure I have a VISA before I can board a flight from Delhi to HCMC.

Good Afternoon. I am due to arrive in Vietnam Noi Bai on 26 August. I will need a multi entry Visa for 30 days only as I am crossing into Cambodia for 4 days during my stay before returning to Ho Chi Min for the last 4 days. Should I wait until the new MULTI entry E-visa is available online and apply using this platform ? Many thanks Carol

With the recent announcement that UK passport holders are now eligible to start for up to 45 days - I wondered if the multi-entry visa automatically applies to us without having to apply for one. I am leaving Vietnam, going to Cambodia, and re-entering Vietnam to fly from Ho Chi Minh City, all in 20 days.

With the new 45 Visa exemption rule. Can you do as many re-entries as you like? And do you always have to show a outbound ticket for every entry? Want to travel around in southeast asia with Vietnam as my basepoint.

Hi, I’m an Australian who didn’t know the visa process so had to get a fast tracked one when i caught my flight on the 25th June from Sydney - Ho Chi Minh - Hanoi - Paris (I was transiting through Vietnam but had to go to the domestic terminal so therefore needed a visa). I was awarded a single entry visa that goes until the 25th July, however it is now used, and I need to transit again to Vietnam on the 15th July (Paris - Hanoi - Ho Chi Minh - Sydney). I applied for another e-visa now, in France, for a full month (just in case) and am hoping it will get approved. Will that be ok or should I have put my correct dates in, less than 30 days as I’ve already entered Vietnam for around 8 hours on the 25th June? Is there anything else I need to do or will I be ok transiting through Hanoi and Ho Chi Minh on my way home? Also second question, my partner is French so didn’t need a visa on the way in - he is flying back 21st July and transiting through Vietnam for around 24 hours - will he be ok with visa on his way back? Thanks!

I am travelling from Hanoi, down the coast stopping at many cities before flying from Nha Trang to Siem Reap, then travelling down the Mekong to Ho Chi Minh city for a further five days, before departing back to Australia. (Tourist) The entire trip falls within the 30 days period of an e-visa. Can I apply for a multi entry visa?

I am currently in Vietnam on a 14 day tourist visa, as my 30 day e visa wasn’t approved in time - I want to be here for longer than 14 days. Do I need to exit and renter? How long do I need to be gone for? Can I just go to the immigration department in HCMC instead?

I have booked tickets from New Delhi (India) to Ho chi Minh and I have connecting flight next day for onwards journey to Japan . Do I need e-visa or transit visa. And during my return journey from Japan I have planned to explore Vietnam, Can I get e-visa again and re-enter.

I will be visiting Vietnam with my spouse (a Vietnamese national) for 1 week, then spending one week in Japan before returning to stay with their family in Vietnam for another week. What would be the best route for a visa to enter exit and return?

I am in Vietnam on a Family Reunification Visa 2 yr. Expiration Oct. 9, 2023 I want to invest and open a small business here and have my own Visa and business license in Da Lat or Nha Trang. Can I apply from inside Vietnam? Thank you for any information

Can I apply for multiple visas to different airports in Vietnam before I go on my trips? I am based in Hong Kong holding a Hong Kong passport. I will need to Visa to HCM airport for a work trip for June 26-30th. However, I also have a vacation booked for July 7th-14th arriving at Danang Airport. Can I apply for both visas now while I am in Hong Kong? Or do I need to complete my first (work) trip, be back in Hong Kong , before I can apply to my visa for my holiday trip? I am most concerned that I will have issues with my holiday trip. Alternatively should I apply for my July 7-14th visit first and get the approval? Then apply for HCM work trip which will take place before my holiday trip?

my boss, who resides in Singapore and holds an India Passport, has an approved eVisa, is visiting Vietnam in early August for 2weeks holiday but after a few days in Vietnam he has to come back to Singapore for an urgent meeting. When he is back in Singapore, can he apply for a new eVisa to enter Vietnam again after leaving Vietnam less than a week?

Hi i recently visited vietnam last month for 30 days, single entry visa, i would like to go back in a few months. If i apply for another single entry 30 day e-visa is this okay for me to come back?

Hi I am travelling to HCMC on the 16th of June and depart on the 17th June, but I fly into Hanoi on the 2nd of July - will I need 2 separate visas? and if so can I get both on arrival? Thank you

Hi is there already an update for the multiply entry visa for 3 months, which was about to come out this month? Thank you!

Hi, I am leaving to Vietneam on June 19th then leaving to Thailand from June 20th to the 22nd. Since I won't have enough time to reapply for the single entry visa, what do I do?

Hi, My son has a 30 days E-visa. He came to Hanoi on June 1st. He is leaving for Sydney on the 16th. He would like to visit Thailand before he leaves for Sydney. Can he re-enter Vietnam with this visa?

Hi, I am travelling to Vietnam on the 19th of July. I will fly out from Ho Chi Minh to Cambodia on the 23rd and then return to Vietnam on the 25th. I understand that I have to apply for multiple visas to allow re-entry to Vietnam however will the Visa that I apply for once I leave for Cambodia be ready by the time I re-enter Vietnam?

I am looking to purchase a 30 day multi-visit E-Visa for my cruises to Vietnam with my partner in August. We enter Vietnam on a cruise ship on the 2 August 2023 at Nha Trang Sea Port at 8:00am and depart on the cruise ship at 6:00pm that day. We return to Nha Trang Sea Port on 21 August 2023 on the cruise ship at 8:00am and depart on the cruise ship at 4:00pm the same day. Our final entry and exit from the cruise ship is on 22 August 2023 at Ho Chi Minh sea port at 7:00am before exiting Vietnam on the cruise ship at 7:00pm the same day. Is there a multi-entry visit visa available to do this? What do you suggest?

Hi, our flight to Vietnam from the US is June 16th. Our flight back from Vietnam to the US is July 4th. Do we have to put the same date as our flight back for our exit date or can we put a later date, in case our flight gets delayed and so that the eVisa is for the full 30 days? Basically, since we already have our return flight booked for July 4th, does the eVisa exit date have to match that exact date of the flight? I'm just worried if the flight gets delayed and since that would be less than 30 days. Thanks.

Hello, I will be traveling to Korea on the 16th of this month and have a Hanoi as my connecting flight is on the 17th of June late at night. Then on my way back from Korea I will be staying for 3 days in Ho Chi Minh from 23rd to 26th of June. I understand that multiple entry visas are not yet available. But will I be able to apply for a new visa if I already have one for the 16th? Or can I apply for 2 visas for different dates and different entry points together?

I am looking to purchase a 30 day multi-visit E-Visa for my trip to Vietnam with my partner in July. We enter Vietnam on the 10th July, exit to Cambodia on the 24th July and return on the 4th August, before exiting Vietnam on the 8th August. Is a multi-entry visit visa the only way to do this? What do you suggest?

Has multiple entry evisa started in vietnam, I have to come n go 2 times when I go to vietnam, as its a long flight, n i want to go out of the airport n stayin a hotel each time!

Hi, we are visiting Vietnam later this month. Our flight leaves from the US on June 16th, but we would not arrive in Vietnam till the 17th. On the eVisa application form would we put the 16th or the 17th as our arrival date? Also, we plan on leaving Vietnam on July 4th. If we put July 4th as our exit date, would the eVisa still be issued for the full 30 days or just up until July 4th? Just not sure exactly how that would work if our flight got delayed or we had to stay for a few days longer than July 4th. Thanks.

Hi, I am planning to come to HCMC on June 19 for a 3 month internship. Because there’s only the 1 month single entry visa, I plan to go on a 4-day trip to another country each month and get a new visa each time. I’m confused because when I read articles on “visa runs,” they say to have your e-visa ready. However, is it possible to apply for a new e-visa while I’m still in the country of Vietnam? How will the e-visa portal know whether I’ve left the country, in order to allow me to apply for a new one?

Hi! How many times in a 12 month period can I come and go from Vietnam in 12 months? Can I begin with a 3 month multi entry visa, leave VN for a day or two, then get either another 3 month multi entry visa, or a single entry visa when I come back after a couple of days? Can I stay in VN for 30 days, leave for 2 days, then come back in, month after month?

Hi, I'm leaving Vietnam July 3rd for Bangkok and returning to Vietnam July 6th. I know you mentioned reapplying for another single entry at time of arrival in Bangkok since multiple entry visa is not available. Do you think we can get it approved in time? Thank you.

Hi, I am entering Vietnam on June 30th, leaving on July 11th, and then entering again on August 1st and leaving on August 4th. What type of visa should I get? According to my itinerary I would be over one month and using multiple entry. Online I cannot yet apply for three month multiple entry. What should I do? Thank you!

I will need to enter Vietnam two times within three weeks as a tourist. Can I apply for two e-visas at the same time? It looks like I can't do Multiple-entry visa on arrival since I'm not a part of an organized tour. I'm so confused.

Hello, when do the 30 day of the e-visa start counting? If our e-visa gets approved on June 1st but we arrive in Vietnam only on June 15th, will we have to leave Vietnam by July 1st or by July 15th?

Hi, We are travelling to Vietnam on June 19 , and have received single entry Visa. On June 25 we going to South Korea for 6 days tour trip and return to Vietnam on June 30, and staying for 3 days then catch a flight back to Australia on July 3. Do we need to apply to a re-entry Visa? If so when and how to apply re-entry Visa?

I am travelling to Kuala Lumpur from Sydney on Vietnamese Airlines in October, and there is a 16 hour stopover in Ho Chi Minh where we want to rest in a hotel. Do we need a visa? Also we will return to Vietnam a few days later for 2 weeks. Do we need another visa or a multiple visa?

Is there a waiting time required before you can apply for a second tourist evisa? Tour starts in Hanoi, then Cambodia & Laos. But I need to fly back to Hanoi to catch return round trip flight home. PS Second leg in Vietnam is only for 5 days.

I will be travelling to Paris from Sydney and change planes in Hanoi. So, I will be in transit only at the airport in Hanoi for about an hour. Do I need to get a visa still?

I leave for Ho Chi Minh City in mid September 2023. Will be on a river cruise that ends in Cambodia and will proceed to Hanoi thereafter, so a multi-entry visa will be required. Is it likely that the Vietnam government will allow multi-entry E-visas in June/July as reported or should I do the pre-approval process with payment etc on my arrival in SGN?

I received my evisa and it is only good for 15 days instead of 30. I didn't change the duration of the visa, but that is what I received. I reapplied last night ( on the official evisa portal through government?). But because I leave on Wednesday, I doubt I will get it or be sure it's correct. What do you suggest I do? Request an extension? Or should I apply for a visa to renter again after the expiration date and leave the country. Then return?

I have a single entry, one month visa. I need to leave Vietnam twice in that time, each time for a week. Do I need to apply for a new monthly single entry visa for each re entry time. I am from Australia

Hi, we are travelling to Vietnam on July 8th and have received our single entry e-visa. On July 15th we will start a Mekong cruise to Phnom Penh and cross the Vietnamese/Cambodian border on July 17th. On July 20th we fly back to Vietnam to continue our holiday. If we understand well, we need to apply again for a single entry e-visa on July 17th? Will we have our e-visa in time for our flight on July 20th? Can we apply earlier for the second e-visa? Many thanks for your feedback!

I am a UK passport holder and will visit Vietnam twice for 5 days each time in September. Do I need a visa ?

I am from USA. Can I board the flight with the Visa approval letter because Korean airlines is saying I need to show them a visa to Vietnam to board the flight. I’m leaving in three weeks.

Hi we are travelling from Australia. Arriving on 9 July in Hanoi, flying to Laos on 10 July, then returning to Hanoi and travelling Vietnam until 30 July. Can we apply for a multi-entry visa online?

Hi, my family and I are from Australia and will be stopping off in Ho Chi Minh City twice but 6 weeks apart for one night only - once night on way to Europe and one night on way back. Do I need to apply for the multi-entry 3 month visa or is there a more appropriate visa? Cheers, Sean.

We are looking forward to travelling to Vietnam and Cambodia in December 2023 and January 2024, coming from the UK. We are planning to spend 5 days in South Vietnam, then cross in to Cambodia, spend 6 days there, and then travel back into Vietnam for a further 14 days. As both periods spent in Vietnam are less than 15 days, am I right in presuming we do not need a tourist visa? Or do we need a visa to cover us for multiple entries?

I am from the Uk and visiting Vietnam in June. How long after you have entered Vietnam for 15 days on the visa exemption do you have to wait before reentering on another visa exemption?

Hello, I'm from France. I'm arriving in Da Nang on 05 July 2023, then I will be going to South Korea for a few days and then I will go back to Vietnam, which visa should I apply? My mom is a Vietnamese citizen. Thank you!

We are arriving in Hanoi on 02 July 2023, then will be flying out to Siem Reap on 22 July, and coming back into Vietnam via a Mekong River Cruise on 28 July, before flying back to Sydney on 03 August. If the multi-entry e-visa is not available in time for the start of our trip, will we then need to apply for a second e-visa once we've headed to Cambodia, and is this available for river border crossing?

Hello, I am visiting Vietnam in June for 15 days then I am going to Cambodia for 7 days then back to Vietnam for a day for a flight. What visas for Vietnam would I require?

Hello, We are coming from Finland to Vietnam for 7 days, and we were planning to visit Laos by Lao Bao land border one day. Can we return with the 15 days exemption permit or do we need visa? Thank you?

We are holidaying in Vietnam and Cambodia in June and July 2023. How do I apply for a multi entry Vietnam visa?

How many times can I visit Vietnam on my 15 days exemption in one year?

If my visa is valid from 2023-Feb-8 til 2023-May-8, could I leave Vietnam on 2023-May-8 without getting any penalty?

i have a canadian passport and applied for a single entry vietnam evisa valid for 30 days from april 26 to may 25. on may 13-17 i will be going to thailand which i do not think i need a visa for. however i will be returning back to vietnam from may 18-24. do i need to apply for another vietnam evisa since mine is only single entry and i have already entered and will be leaving for the 5 days? or does it count within the 30 days

Hi I fly in to saigon on 1st june from UK and fly out of saigon back to uk on 21st june I'm looking to travel in to Cambodia after 10 days in Vietnam then come back to Vietnam after 5 days would my 15 days Visa allowance start again or do I need a multi visa to cross border in to Cambodia then back in Vietnam?

I am traveling from the UK to Vietnam. According to the UK government website I do not need a Visa if I am traveling to Vietnam for 15 days. I fly to Cambodia from Vietnam on day 15 but then return to Vietnam 2 days later. Does this start the 15 day period again as I left and then returned?

As a British & French citizen can I apply online for a 3 month multiple entry visa, starting from June until Aug23, if I come without an organised tour?

I want to travel to Vietnam for about 2 months this summer, however, there is currently no tourist visa that allows for more than 30 day stay. Can I stay in VN for 30 days, travel to Thailand for a week and reapply for a new tourist visa, then come back and stay for another 30 days?

If I am in Vietnam for 30 days on a single entry visa, can I then leave to go to Cambodia for 5 days and then re-enter Vietnam for four days before flying back to the UK. ie can I use the 15 day visa exemption for my final four days in Vietnam (after having made use of a 30 day single entry visa not long before).

Hello, I was told that I could exit and re enter o a 15 day visa exemption when I was in Ho Chi Minh city. I stayed in Ho Chi Minh city for 2 days, have left for Cambodia for 5 days and am now looking to return for 15 days. Is this possible?

I planning to come Saigon on 19 June by single entry Visa, and go to South Korea on 26 June then back to Saigon on 30June for few more day before return to Australia. Should I change my Visa to multiple entry Visa or better apply for extra single entry Visa? Where and when I should apply for re-entry Visa? Thanks.

On what date in May can a multiple entry visa be obtained online, May the 1st or another date. (I am flying to Saigon from Australia on May 12th. A week later I fly to The Phillipines, then a week later to Hanoi, then to Cambodia and finally to Saigon and then home. So I’ll be entering Vietnam three times within a one month period.)

I am looking to purchase a 30 day multi-visit E-Visa for my trip to Vietnam with my partner in July. We enter Vietnam on the 10th July, exit to Cambodia on the 24th July and return on the 4th August, before exiting Vietnam on the 8th August. Please can you send across all relevant information and a link for completing, submitting and paying for our 30 day multi-visit e-visa.

Does visa valid for multiple entries during 30 days? I am to travel from Vietnam to Cambodia by plane and back to Vietnam by bus in 4 days.