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Cheap flights from London Heathrow Airport to Vietnam from £297

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 23/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SGN
13 Jun — 20 Jun1
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 14 May 2026.

Tue 22/922:40
LHR
-
HAN
1 stop31h 15m
Air China
Sun 11/1013:25
HAN
-
LHR
1 stop34h 15m
Air China
Deal found 11/5£412
Sun 20/922:40
LHR
-
HAN
1 stop31h 15m
Air China
Sun 11/1013:25
HAN
-
LHR
1 stop37h 00m
Air China
Deal found 11/5£422
Wed 16/922:40
LHR
-
HAN
1 stop31h 15m
Air China
Mon 12/1013:25
HAN
-
LHR
1 stop37h 00m
Air China
Deal found 10/5£440
Wed 23/922:05
LHR
-
HAN
1 stop29h 35m
Shenzhen Airlines
Tue 6/1002:10
HAN
-
LHR
1 stop23h 50m
Shenzhen Airlines
Deal found 13/5£443
Fri 27/1121:10
LHR
-
HAN
1 stop21h 00m
Shenzhen Airlines
Fri 11/1202:10
HAN
-
LHR
1 stop24h 00m
Shenzhen Airlines
Deal found 12/5£445
Wed 4/1121:10
LHR
-
HAN
1 stop21h 00m
Shenzhen Airlines
Sun 15/1119:40
HAN
-
LHR
1 stop30h 30m
Shenzhen Airlines
Deal found 11/5£446
Mon 2/1121:10
LHR
-
HAN
1 stop21h 00m
Shenzhen Airlines
Sat 21/1102:10
HAN
-
LHR
1 stop24h 00m
Shenzhen Airlines
Deal found 13/5£454
Sat 14/1121:10
LHR
-
HAN
1 stop21h 00m
Shenzhen Airlines
Fri 4/1202:10
HAN
-
LHR
1 stop24h 00m
Shenzhen Airlines
Deal found 11/5£455
Sun 8/1121:10
LHR
-
HAN
1 stop33h 45m
Shenzhen Airlines
Sat 21/1119:40
HAN
-
LHR
1 stop30h 30m
Shenzhen Airlines
Deal found 14/5£456
Mon 8/622:40
LHR
-
SGN
1 stop20h 00m
Air China
Mon 6/705:10
SGN
-
LHR
1 stop21h 15m
Air China
Deal found 11/5£459
Wed 11/1121:10
LHR
-
SGN
1 stop21h 40m
Shenzhen Airlines
Thu 19/1102:50
SGN
-
LHR
1 stop23h 20m
Shenzhen Airlines
Deal found 10/5£460
Mon 21/922:05
LHR
-
HAN
1 stop29h 35m
Shenzhen Airlines
Fri 9/1002:10
HAN
-
LHR
1 stop23h 40m
Shenzhen Airlines
Deal found 10/5£460

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 14 May 2026.

Round-trip from

£412

One-way from

£297

Popular in

July

Cheapest in

November

Average price

£571

Good round-trip deal

£751 or less

Good one-way deal

£417 or less
Air China
  • Air China
  • 22/9-11/10
  • 2 total stops
  • 65h 30m total
  • London to Vietnam
Search Deals
Shenzhen Airlines
  • Shenzhen Airlines
  • 23/9
  • 1 total stop
  • 21h 05m total
  • London to Vietnam
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£66 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 14 May 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 - HAN

LHRHAN

London Heathrow

Wed 30/9

22:05-09:40

1 stop29h 35m

Hanoi Noibai

Tue 13/10

02:10-20:00

1 stop23h 50m

£479

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Thu 11/6

21:20-14:00

1 stop34h 40m

Hanoi Noibai

Wed 17/6

18:45-18:40

1 stop29h 55m

£599

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Tue 16/6

09:30-06:40

1 stop15h 10m

Hanoi Noibai

Wed 24/6

20:40-07:00

1 stop16h 20m

£612

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Tue 29/9

09:30-06:40

1 stop15h 10m

Hanoi Noibai

Mon 12/10

20:40-18:45

1 stop28h 05m

£624

LondonHo Chi Minh City

LHR - SGN

LHRSGN

London Heathrow

Tue 3/11

21:00-01:10

1 stop21h 10m

Ho Chi Minh City

Sun 15/11

02:10-17:30

1 stop22h 20m

£673

LondonHo Chi Minh City

LHR - SGN

LHRSGN

London Heathrow

Sun 6/9

08:25-19:05

2 stops28h 40m

Ho Chi Minh City

Mon 21/9

10:05-19:10

2 stops39h 05m

£675

LondonHo Chi Minh City

LHR - SGN

LHRSGN

London Heathrow

Wed 2/9

20:50-10:00

2 stops31h 10m

Ho Chi Minh City

Wed 23/9

10:05-19:10

2 stops39h 05m

£677

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Tue 2/6

20:50-09:35

2 stops30h 45m

Hanoi Noibai

Tue 9/6

10:35-19:10

2 stops38h 35m

£697

LondonHo Chi Minh City

LHR - SGN

LHRSGN

London Heathrow

Thu 11/6

20:50-19:05

2 stops40h 15m

Ho Chi Minh City

Thu 18/6

10:05-06:30

2 stops26h 25m

£719

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Tue 1/9

20:50-12:15

2 stops33h 25m

Hanoi Noibai

Thu 24/9

10:35-06:30

2 stops25h 55m

£723

Flights are sorted by cheapest return flights first.

Deals found on 9/5

Showing 1-10 of 60 resultsSorted by cheapest first
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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

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 35 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.

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 £529). Flying from London Heathrow Airport to Vietnam in December is currently the most expensive (average of £992). 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 15% of weekly flights between London and Vietnam have experienced delays in the past year, with the average delay time being 155 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 Sunday 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 15% of flights being delayed.

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 14 May 2026.
See what other customers who have flown with Vietnam Airlines,Cathay Pacific, andChina Southern 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
268 reviews
Check prices

Food

6.9

Crew

8.2

Entertainment

6.3

Comfort

7.7

Overall

7.7

Boarding

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
268 reviews
Vietnam Airlines
7.7
Good
268 reviews
Check prices

Food

6.9

Crew

8.2

Entertainment

6.3

Comfort

7.7

Overall

7.7

Boarding

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
1,329 reviews
Vietnam Airlines
7.7
Good
268 reviews
Check prices

Food

6.9

Crew

8.2

Entertainment

6.3

Comfort

7.7

Overall

7.7

Boarding

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
7.5
Good
151 reviews
Vietnam Airlines
7.7
Good
268 reviews
Check prices

Food

6.9

Crew

8.2

Entertainment

6.3

Comfort

7.7

Overall

7.7

Boarding

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
3,727 reviews
Vietnam Airlines
7.7
Good
268 reviews
Check prices

Food

6.9

Crew

8.2

Entertainment

6.3

Comfort

7.7

Overall

7.7

Boarding

7.7

Reviews

1 / 16
2.0
Mediocre

Stephen,Apr 2026

SGN - DAD

45 minutes late. Bottle of water and that’s about it.
Air China
7.3
Good
149 reviews
Vietnam Airlines
7.7
Good
268 reviews
Check prices

Food

6.9

Crew

8.2

Entertainment

6.3

Comfort

7.7

Overall

7.7

Boarding

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 £612, Shenzhen Airlines can have you in Vietnam from London Heathrow Airport in 15h 10m. Airlines will cover a distance of 5736 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 (£241), Etihad Airways (£251), and Hainan Airlines (£253).

  • 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 most reliable airlines from London Heathrow Airport to Vietnam?

    No one likes to see their flight delayed. When booking a flight from London Heathrow Airport to Vietnam consider choosing Scandinavian Airlines (93%), Cambodia Angkor Air (92%) or Vietnam Airlines (91%) as they are the most reliable in getting you off to your destination on time.

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

    On average you can expect to pay £960 for a flight from London Heathrow Airport to Vietnam. The cheapest flight overall is £401 while the most popular route, (London Heathrow - Hanoi Noibai) is currently priced at £443.

  • 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 £529). Flying from London Heathrow Airport to Vietnam in December is currently the most expensive (average of £992). 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

Browse thousands of different options on Cheapflights for your next trip

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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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Gatwick to Islamabad flights

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 14 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Hainan AirlinesCheapest£188Average£309FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
Etihad AirwaysCheapest£339Average£648FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Air ChinaCheapest£363Average£439FlexibilityNo cancel feeOn-time67%
Search Air China flights
Air IndiaCheapest£368Average£601FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Shenzhen AirlinesCheapest£374Average£490FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
China EasternCheapest£376Average£474FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
China SouthernCheapest£392Average£553FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Malaysia AirlinesCheapest£500Average£693FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Air FranceCheapest£502Average£587FlexibilityNo cancel feeOn-time77%
Search Air France flights
Cathay PacificCheapest£547Average£785FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific 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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