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Cheap flights from London Heathrow Airport to Vietnam from £286

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SGN
7 Sep — 14 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Vietnam

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Vietnam
Explore the most affordable flight options available from Heathrow to Vietnam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 August 2026.

Wed 23/922:10 -
1 stop18h 50m
Fri 23/1008:15 -
1 stop17h 05m
Deal found 6/8£428
Tue 3/1121:00 -
1 stop21h 45m
Mon 30/1102:45 -
1 stop21h 45m
Deal found 6/8£428
Mon 7/920:50 -
2 stops38h 00m
Mon 28/918:25 -
1 stop31h 25m
Deal found 6/8£429
Thu 19/1117:40 -
1 stop26h 20m
Wed 2/1204:00 -
1 stop18h 55m
Deal found 4/8£430
Mon 2/1121:00 -
1 stop37h 45m
Fri 20/1115:10 -
1 stop33h 20m
Deal found 7/8£431
Sun 1/1121:00 -
1 stop37h 45m
Sun 22/1118:45 -
1 stop29h 45m
Deal found 7/8£432
Mon 21/921:20 -
2 stops22h 15m
Mon 12/1015:45 -
2 stops32h 55m
Deal found 7/8£433
Sun 8/1121:00 -
1 stop34h 10m
Sat 21/1102:45 -
1 stop21h 45m
Deal found 6/8£433
Sun 30/820:50 -
2 stops35h 10m
Tue 15/918:25 -
1 stop31h 35m
Deal found 3/8£434
Tue 3/1121:00 -
1 stop34h 10m
Fri 13/1102:45 -
1 stop21h 45m
Deal found 3/8£435
Sat 5/920:50 -
2 stops38h 00m
Tue 15/902:10 -
1 stop23h 50m
Deal found 7/8£436
Sun 1/1121:00 -
1 stop21h 45m
Sat 14/1102:45 -
1 stop21h 45m
Deal found 3/8£437

Find flight deals from Heathrow to Vietnam

Keep the following information in mind while searching for Heathrow to Vietnam flight deals. Data was last updated 8 August 2026.

Round-trip from

£428

One-way from

£286

Popular in

July

Cheapest in

September

Average price

£779

Good round-trip deal

£717 or less

Good one-way deal

£447 or less
China Southern
  • China Southern
  • 23/9-23/10
  • 2 total stops
  • 35h 55m total
  • London to Vietnam
Search Deals
20/8
  • 20/8
  • 2 total stops
  • 38h 00m total
  • London to Vietnam
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£62 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a round-trip flight from London Heathrow to Vietnam.
Search Deals
Price to beat on a one-way flight from London Heathrow to Vietnam.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Vietnam that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 8 August 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Vietnam that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonHanoi

LHR London Heathrow - HAN Hanoi Noibai

LHRHAN

London Heathrow

Sun 1/11

21:00-14:45

2 stops34h 45m

Hanoi Noibai

Sun 15/11

18:45-17:30

1 stop29h 45m

£462

LondonHanoi

LHR London Heathrow - HAN Hanoi Noibai

LHRHAN

London Heathrow

Fri 4/12

21:10-01:10

1 stop21h 00m

Hanoi Noibai

Sun 13/12

14:55-19:10

1 stop35h 15m

£478

LondonHanoi

LHR London Heathrow - HAN Hanoi Noibai

LHRHAN

London Heathrow

Thu 1/10

21:20-14:00

1 stop34h 40m

Hanoi Noibai

Fri 16/10

15:45-18:40

2 stops56h 55m

£520

LondonHanoi

LHR London Heathrow - HAN Hanoi Noibai

LHRHAN

London Heathrow

Sat 7/11

21:10-09:40

1 stop29h 30m

Hanoi Noibai

Tue 17/11

18:40-19:10

1 stop31h 30m

£531

LondonPhu Quoc

LHR London Heathrow - PQC Phu Quoc Duong Dang

LHRPQC

London Heathrow

Wed 30/9

21:20-00:05

1 stop20h 45m

Phu Quoc Duong Dang

Sat 3/10

01:05-18:40

1 stop23h 35m

£531

LondonHanoi

LHR London Heathrow - HAN Hanoi Noibai

LHRHAN

London Heathrow

Thu 26/11

21:00-15:15

3 stops59h 15m

Hanoi Noibai

Thu 3/12

15:45-17:30

3 stops56h 45m

£547

LondonNha Trang

LHR London Heathrow - CXR Nha Trang Cam Ranh

LHRCXR

London Heathrow

Sun 8/11

11:00-11:55

1 stop17h 55m

Nha Trang Cam Ranh

Thu 19/11

19:20-07:15

1 stop18h 55m

£644

LondonHo Chi Minh City

LHR London Heathrow - SGN Ho Chi Minh City

LHRSGN

London Heathrow

Tue 1/9

21:20-18:10

3 stops62h 50m

Ho Chi Minh City

Sun 20/9

02:00-18:40

2 stops46h 40m

£658

LondonHo Chi Minh City

LHR London Heathrow - SGN Ho Chi Minh City

LHRSGN

London Heathrow

Wed 26/8

20:50-19:05

2 stops40h 15m

Ho Chi Minh City

Sun 6/9

10:05-06:30

2 stops26h 25m

£672

LondonHaiphong

LHR London Heathrow - HPH Haiphong Catbi

LHRHPH

London Heathrow

Mon 12/10

22:10-09:10

2 stops29h 00m

Haiphong Catbi

Mon 19/10

10:00-19:20

3 stops39h 20m

£672

Flights are sorted by cheapest return flights first.

Deals found on 5/8

Showing 1-10 of 60 resultsSorted by cheapest first
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6

Best time to book a flight from Heathrow to Vietnam

Have a flexible travel schedule? Discover the best time to fly to Vietnam from Heathrow with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Vietnam

What is the cheapest month to book a flight from London Heathrow Airport to Vietnam?

Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to Vietnam (average of £602). Flying from London Heathrow Airport to Vietnam in July is currently the most expensive (average of £874). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How often are flights from London to Vietnam delayed?

About 12% of weekly flights between London and Vietnam have experienced delays in the past year, with the average delay time being 142 minutes.

What is the most punctual flight time for London to Vietnam flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on London to Vietnam flights?

Over the past year, Vietnam Airlines have had the lowest number of delays on this route, with just 12% of flights being delayed.

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

The best time to book flights from London Heathrow Airport to Vietnam is 80 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Vietnam

Get insights into the airlines that provide service to Vietnam. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Vietnam. Reviews last updated 8 August 2026.
See what other customers who have flown with Vietnam Airlines,Cathay Pacific, andQatar Airways from London Heathrow Airport to Vietnam have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Vietnam Airlines
7.7
Good
283 reviews
Check prices

Boarding

7.7

Crew

8.3

Comfort

7.7

Entertainment

6.3

Food

6.9

Overall

7.7

Reviews

1 / 16
2.0
Mediocre

Stephen,Apr 2026

SGN - DAD

45 minutes late. Bottle of water and that’s about it.
Vietnam Airlines
7.7
Good
283 reviews
Vietnam Airlines
7.7
Good
283 reviews
Check prices

Boarding

7.7

Crew

8.3

Comfort

7.7

Entertainment

6.3

Food

6.9

Overall

7.7

Reviews

1 / 16
2.0
Mediocre

Stephen,Apr 2026

SGN - DAD

45 minutes late. Bottle of water and that’s about it.
Cathay Pacific
7.6
Good
1,439 reviews
Vietnam Airlines
7.7
Good
283 reviews
Check prices

Boarding

7.7

Crew

8.3

Comfort

7.7

Entertainment

6.3

Food

6.9

Overall

7.7

Reviews

1 / 16
2.0
Mediocre

Stephen,Apr 2026

SGN - DAD

45 minutes late. Bottle of water and that’s about it.
Qatar Airways
7.4
Good
3,740 reviews
Vietnam Airlines
7.7
Good
283 reviews
Check prices

Boarding

7.7

Crew

8.3

Comfort

7.7

Entertainment

6.3

Food

6.9

Overall

7.7

Reviews

1 / 16
2.0
Mediocre

Stephen,Apr 2026

SGN - DAD

45 minutes late. Bottle of water and that’s about it.
Etihad Airways
7.3
Good
1,498 reviews
Vietnam Airlines
7.7
Good
283 reviews
Check prices

Boarding

7.7

Crew

8.3

Comfort

7.7

Entertainment

6.3

Food

6.9

Overall

7.7

Reviews

1 / 16
2.0
Mediocre

Stephen,Apr 2026

SGN - DAD

45 minutes late. Bottle of water and that’s about it.
China Southern
7.3
Good
170 reviews
Vietnam Airlines
7.7
Good
283 reviews
Check prices

Boarding

7.7

Crew

8.3

Comfort

7.7

Entertainment

6.3

Food

6.9

Overall

7.7

Reviews

1 / 16
2.0
Mediocre

Stephen,Apr 2026

SGN - DAD

45 minutes late. Bottle of water and that’s about it.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Vietnam. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London Heathrow Airport to Vietnam?

    For as low as £644, China Eastern can have you in Vietnam from London Heathrow Airport in 17h 55m. Airlines will cover a distance of 6382 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines to fly from London Heathrow Airport to Vietnam one-way?

    The cheapet airlines for a one-way flight from London Heathrow Airport to Vietnam are Shenzhen Airlines (£242), Etihad Airways (£252), and Hainan Airlines (£254).

  • What are the most popular routes from London Heathrow Airport to Vietnam?

    The most popular flight routes from London Heathrow Airport to Vietnam are London Heathrow - Hanoi Noibai, London Heathrow - Ho Chi Minh City and London Heathrow - Da Nang.

  • What are the cheapest flights from London Heathrow Airport to Vietnam?

    On average you can expect to pay £1,834 for a flight from London Heathrow Airport to Vietnam. The cheapest flight overall is £388 while the most popular route, (London Heathrow - Hanoi Noibai) is currently priced at £404.

  • Can I find deals for flights from Heathrow to Vietnam that include hotel bookings?

    Yes. In addition to deals on Heathrow to Vietnam flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Vietnam?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Vietnam.

  • Can I find deals for business class flights from Heathrow to Vietnam?

    Yes. Cheapflights offers flight deals from Heathrow to Vietnam by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Heathrow Airport to Vietnam?

    Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to Vietnam (average of £602). Flying from London Heathrow Airport to Vietnam in July is currently the most expensive (average of £874). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Heathrow to Vietnam

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Heathrow to Vietnam

Discover the top 10 airlines that operate flights from Heathrow to Vietnam. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 8 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Hainan AirlinesCheapest£189Average£310FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
Air IndiaCheapest£259Average£614FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Etihad AirwaysCheapest£340Average£688FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Air ChinaCheapest£356Average£459FlexibilityNo cancel feeOn-time67%
Search Air China flights
Shenzhen AirlinesCheapest£374Average£489FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
China EasternCheapest£378Average£486FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
China SouthernCheapest£407Average£569FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air FranceCheapest£504Average£546FlexibilityNo cancel feeOn-time77%
Search Air France flights
Malaysia AirlinesCheapest£515Average£756FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Qatar AirwaysCheapest£557Average£722FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Heathrow to Vietnam?

Cheapflights helps you search for flights from Heathrow to Vietnam via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Vietnam?

Cheapflights simply makes it quick and affordable to book flights from Heathrow to Vietnam by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Heathrow to Vietnam with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to Vietnam flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Heathrow to Vietnam become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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