£254 Find Cheap Flights from London Heathrow Airport to Vietnam

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Vietnam departing on 4/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Heathrow to Vietnam

Cheapest return prices found by our users on KAYAK in the last 72 hours
Hanoi
Hanoi1 stop£379
Ho Chi Minh City
Ho Chi Minh City1 stop£434
Da Nang
Da Nang1 stop£641
Phu Quoc
Phu Quoc2 stops£433
Nha Trang
Nha Trang1 stop£534
Hue
Hue2 stops£957
Con Dao
Con Dao3 stops£758
Haiphong
Haiphong2 stops£595
Hanoi
Hanoi1 stop£379
Ho Chi Minh City
Ho Chi Minh City1 stop£434
Da Nang
Da Nang1 stop£641
Phu Quoc
Phu Quoc2 stops£433
Nha Trang
Nha Trang1 stop£534
Hue
Hue2 stops£957
Con Dao
Con Dao3 stops£758
Haiphong
Haiphong2 stops£595

Book Cheap Heathrow to Vietnam Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow to Vietnam that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Heathrow to Vietnam

Wed, 11 Mar - Sun, 15 Mar
Hainan Airlines Logo
19:45 - 22:10
LHR
-
HAN
19h 25m
1 stop
Hainan Airlines Logo
23:15 - 17:55
HAN
-
LHR
25h 40m
2 stops
£379Hainan Airlines
Wed, 18 Mar - Sun, 5 Apr
Hainan Airlines Logo
19:45 - 22:10
LHR
-
HAN
19h 25m
1 stop
Hainan Airlines Logo
21:10 - 19:30
HAN
-
LHR
28h 20m
2 stops
£380Hainan Airlines
Wed, 18 Mar - Sun, 5 Apr
Hainan Airlines Logo
19:45 - 22:10
LHR
-
HAN
19h 25m
1 stop
Hainan Airlines Logo
21:10 - 19:30
HAN
-
LHR
28h 20m
2 stops
£382Hainan Airlines
Tue, 7 Apr - Wed, 17 Jun
Air China Logo
22:00 - 00:40
LHR
-
SGN
44h 40m
2 stops
Air China Logo
05:10 - 17:40
SGN
-
LHR
18h 30m
1 stop
£439Air China
Mon, 8 Jun - Mon, 15 Jun
China Southern Logo
22:10 - 15:10
LHR
-
CXR
35h 00m
1 stop
China Southern Logo
16:00 - 19:00
CXR
-
LHR
33h 00m
1 stop
£534China Southern
Thu, 4 Jun - Mon, 8 Jun
China Southern Logo
22:10 - 15:10
LHR
-
CXR
35h 00m
1 stop
China Southern Logo
11:05 - 19:00
CXR
-
LHR
37h 55m
1 stop
£538China Southern
Fri, 13 Mar - Sat, 21 Mar
Cathay Pacific Logo
17:50 - 18:05
LHR
-
PQC
17h 15m
1 stop
Cathay Pacific Logo
18:55 - 15:00
PQC
-
LHR
27h 05m
1 stop
£565Cathay Pacific
Mon, 9 Mar - Mon, 16 Mar
Cathay Pacific Logo
17:50 - 09:50
LHR
-
PQC
33h 00m
1 stop
Cathay Pacific Logo
18:55 - 17:20
PQC
-
LHR
29h 25m
1 stop
£585Cathay Pacific
Fri, 29 May - Tue, 2 Jun
Vietnam Airlines Logo
06:15 - 09:50
LHR
-
VDH
21h 35m
2 stops
Vietnam Airlines Logo
10:25 - 16:55
VDH
-
LHR
36h 30m
1 stop
£826Vietnam Airlines
Fri, 29 May - Tue, 2 Jun
Vietnam Airlines Logo
06:15 - 09:50
LHR
-
VDH
21h 35m
2 stops
Vietnam Airlines Logo
10:25 - 16:55
VDH
-
LHR
36h 30m
1 stop
£826Vietnam Airlines
Booking Insights

KAYAK's insights & trends for Heathrow to Vietnam flights

Get data-powered insights and trends into flights from Heathrow to Vietnam to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest London Heathrow Airport to Vietnam flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Vietnam from London Heathrow Airport found in the last 72 hours was to Ho Chi Minh City, at £547 return. The most popular route is from London Heathrow Airport (LHR) to Hanoi (HAN), and the cheapest round-trip airline ticket found on this route in the last 72 hours was £557.

Can I save money by flying with a stopover from London Heathrow Airport to Vietnam?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of £646, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from London Heathrow Airport to Vietnam?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Vietnam, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London Heathrow Airport to Vietnam is November, when tickets cost £600 (return) on average. On the other hand, the most expensive months are July and August, when the average cost of return tickets is £860 and £830 respectively.

What’s the cheapest day of the week to fly from London Heathrow Airport to Vietnam?

The average price of all round-trip flights from London Heathrow Airport to Vietnam clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Vietnam on a Monday, as we generally find the cheapest rates on that day for this route. On the other hand, Tuesday is the most expensive day to fly from London Heathrow Airport to Vietnam. For your return ticket, we recommend flying on a Wednesday and avoiding Sundays for the best deals.

How far in advance should I book a flight from London Heathrow Airport to Vietnam?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to Vietnam, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on the flight from London Heathrow Airport to Vietnam, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Good to know - Cheap tickets from London Heathrow Airport to Vietnam

Low seasonJune
Cheapest flight£254
Best time to beat the crowds (14% less expensive on average)
Most popular time to fly and prices are also 2% lower on average.
Flight from London Heathrow Airport to Hanoi

FAQs - booking Vietnam flights

  • How does KAYAK find such low prices on flights from London Heathrow Airport to Vietnam?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London Heathrow Airport to Vietnam.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Heathrow Airport to Vietnam?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London Heathrow Airport to Vietnam is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London Heathrow Airport to Vietnam?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from London Heathrow Airport to Vietnam with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Heathrow Airport to Vietnam?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from London Heathrow Airport to Vietnam up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Vietnam?

    The cheapest time of day to fly to Vietnam is generally at night, when retur flights cost £698 on average. Morning departures are around 12% more expensive than evening flights, on average. The most expensive time of day to fly to Vietnam is generally in the morning, which is peak travel time and where the average cost of a ticket is £781.

Reviews of the top 5 airlines flying from Heathrow to Vietnam

 
Need help choosing which airline to fly with from Heathrow to Vietnam? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.6
Cathay PacificOverall score based on 1159 reviews
8.1Crew
7.8Entertainment
7.9Boarding
7.6Comfort
7.3Food
Airline reviews

Crew was very good, but could have checked on us when meals were not being served also.

10.0 ExcellentAnonymous, Feb 2026
MAA - HKG
Read more Cathay Pacific reviews

Crew was very good, but could have checked on us when meals were not being served also.

Few vegetarian food options. Incorporating one per meal service would be best and captures a wider audience than just vegetarians (individuals with religious meat restrictions can also eat vegetarian).

Cramped, hot and the plane was grubby. Also the plane was an hour late and it took an hour to get my luggage once I got to LAX.

Flight from Hong Kong to LAX was late, the plane was grubby, overcrowded and hot. I recently flew Starlux and that was a MUCH better experience.

Given the Business class airfare, the food variety and quality both were substandard. The crew was not interested to serve other choices and work hard to provide alternatives. Very disappointing food service.

Crew and food were great in-flight. We had a 2 hour delay, no communication, and just got left in a limbo. The crew arrived late and they were running checkouts on the plane (which is important, but why not doing it earlier?) Cathay did nothing to about the delay, and a lot of people missed their connection flights. I had to run and got stuck at checkpoint, which made my entire trip very unpleasant. Got to my gate 5 mins prior to them closing it.

Great service from crews and delicious dishes, snacks and drinks. Egg tarts and local dimsum are delicious.

I wish there were more bathrooms available on these larger carriers.

It was good. The planes needed to be updated though, they were dated and the entertainment systems were old. Service was amazing. The pre-booked meals were lacklustre.

It's basically 15 hours with an airline in economy class. There's really not much of anything that could have been done better unless I had a first class ticket. Cathay Pacific does excellent work, with a very professional, friendly and attentive crew. It's literally the only airline that I will fly to Southeast Asia.

The flight boarded and departed pretty much on time as it’s just a one hour flight there is no food or entertainment so I marked that at the neutral but they do offer water and I’m sure if you needed some food you could bring your own onboard. This was our third internal flight with Vietnam Airways and I recommend them.

This is a very short commuter flight, so there is no food or flight entertainment. Hence, I marked it in the neutral flight left on time. The plane was full pretty much and it was a pretty easy flight overall very good.

The flight crew and attendants are very professional and polite.

Food and welcome services were good , however we experienced issues with the entertainment system and poor headsets

Very good flight and very kind crew Only thing is I wish there would be a vegetarian option for the meals

Lovely staff, comfortable seats. Transit time was short but they had great processes in place to get us on the plane.

For a domestic flight, seats are ok, but fir us as tall dutchies, the legroom is too small. However, for a short and affordable flight, is not a big problem. Staff is still very nice and a complementary water very welcome.

2 hours delay, time changes started already 2 days before the flight

Average, not more then that. Cannot compete with Singapore Airlines

I bought the front row seat and made and early online check in but they changed my seat to the back row without prior notice. The inflight meal was too poor, only a piece of small finger food. The boarding is a disaster, everyone is stuffed in a bus in chaos. Doesnt worth the money at all.

The boarding experience did not follow the Zones that were listed on the boarding passes. This was a two-level aircraft with many passengers. Because zones were not called out by the airline staff, there was simply a mob trying to board and it was not a pleasant experience.

Friendly and discreet staff. Could have done with a few more offers of water/snacks overnight. Movie and tv selection notably poor. Seats not especially comfortable

Qatar maybe considered one of the best ailines in the world but nowadays it is much of a muchness with the rest

Indigo airlines is terrible. Staff is awful and so disorganized. They are so rude and unhelpful. I will never travel on Indigo airlines again!!!!!

Terrible experience resolving missed connection after flight was delayed. 3 hour queue at transit desk, not enough staff, no organisation, worst ever flying experience.

Worse fight I ever take since I start flying , still have even made home , and crew abandon us half way home . No water no food and no even anyone to answer our questions

Qatar Airways did a very good job. Flights were slightly delayed with boarding but pilots made up time by arrival. The food was OK, no better or worse than other airlines. Although it would be nice to have three meals during 16 hours flight instead of two.

The Qatar Airways staff pre-boarding and also on the flight from Dallas to Doha were incredibly mediocre and arrogant. Consider retraining these individuals Other flights were ok.

No difference between US airline and Qatar. Both cramp as many people. The airline seems to change planes without notice choice is seating when making reservations online doesn’t match the plane a passenger is on. Especially paying extra. Nothing special No different than US carriers.

Boston to Doha was great but Doha to Dhaka was the worst experience.

did not get a notification about seat selection ahead of time. We didn't end up sitting together.

I was denied boarding at the Brisbane airport and it seems like I won’t get any refunds from the airline

In my return flight they couldn’t identify my ticket or boarding pass, I had to go to 3 different counters until I was able to get my boarding pass. The food was on, it was the bear minimum. They didn’t even recognise that I was a Muslim and can’t eat meat, chicken or pork. In one of the trays I believe they served me pork. The staff were very pleasant, but they need to be aware of their surroundings more carefully, one of them stuck her lower belly right into my face! I was shocked and very uncomfortable.

Overall I had good experience with China Southern airline. Nothing to claim. I hoped they could improve the meal quality that is.

Wow very impressed by the quality and attentiveness of service of China Southern. Lived the blankets! Will definitely fly with them again. Despite language barriers, a few attendants know enough English to understand our rudimentary Mandarin and respond to basic questions. Although they don’t explain the beverage and meal service on the website or ticketing documents, they offered regular beverage cart and snacks during the beginning hours and end hours of the long, transoceanic flight. A full meal at the beginning and end of the flight as well, and a midflight small sandwich (dinner roll sized) but we weren’t hungry and didn’t try that one. The expectation is that every sleeps during the middle of the flight. We were on a “redeye” departure from LAX with a morning arrival in China, so I don’t know if this service pattern is the same for other flights. The domestic flight we took from Guangzhou to Harbin offered conventional refreshments and meals like a US flight service. Note that they didn’t offer diet sodas. If you like to stay hydrated, I recommend bringing plenty of your own. It is served in small cups like any other drink. You can ask for a bottle but they’re tiny - about 6 ounces.

China Southern was not the problem. I booked my flight through Kayak and also received a booking reference and alert details regarding departure time and gate numbers… however Kayak NEVER actually booked my flight! We were stranded at the airport without a flight for a long awaited holiday!

The connection between LA and Atlanta was too much stress

Terrible boarding experience,,food is very poor that I I . Never going book this airline again.

The crew were kind, patient and responsive. The service was excellent, even though we travelled the cheapest economy class. We arrived at our destination 40 min early, which for a 15+ hour flight is a great bonus. The boarding seemed a bit "loose", but got us boarded on time, and the plane was off exactly @ 0:30 hrs.

The airport didn‘t give me the ticket. I called customer service to ask for a refund but they kept giving me a perfunctory response and refused to refund me.

Economy seats were good and spacious. Much better than virgin by a mile.

I was unable to board this flight because of visa changes that I was not alerted about and I’ve been unable to contact Kayak to obtain a refund / credit anything.

My touch screen at my seat wasn't working, the films BA advertised on the website for this flight were not available, and the plane was a little dated, food was good and the staff were good, just let down by the aircraft facilities.

Did not like the seating configuration at all with 2+3+2 in business class. Lacking total privacy and comfort

Check-in experience, for business call please provide a premium experience

Lost my luggage, ran out of food choices in business class, ground crew was completely unapologetic.

Excellent. The crew and flight were great. Checking in was easy and everyone was very helpful.

Late. And service was very slow - passengers sat for well over an hour with dirty trays etc surrounding them

Entertainment devices on A380 need to be fixed, the seats might do with updates.

I like everything about British Airways. Excellence. Perfect. Exquisite service.

Everything you need to know for your flight from Heathrow to Vietnam

Information on your arrival and departure airports