Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from London Heathrow Airport to Vietnam from £305

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 18/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SGN
18 Aug — 25 Aug1
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 19 July 2026.

Wed 26/822:00
LHR
-
HAN
1 stop16h 05m
Hainan Airlines
Sun 6/921:10
HAN
-
LHR
2 stops28h 20m
Hainan Airlines
Deal found 18/7£479
Thu 5/1121:00
LHR
-
HAN
2 stops34h 45m
China Eastern
Sun 29/1115:10
HAN
-
LHR
1 stop33h 20m
China Eastern
Deal found 16/7£480
Tue 3/1121:00
LHR
-
HAN
1 stop21h 45m
China Eastern
Fri 20/1116:15
HAN
-
LHR
2 stops32h 15m
China Eastern
Deal found 16/7£481
Thu 27/822:10
LHR
-
HAN
1 stop18h 50m
China Southern
Mon 5/1015:45
HAN
-
LHR
1 stop33h 35m
China Southern
Deal found 18/7£482
Thu 5/1121:00
LHR
-
HAN
2 stops34h 45m
China Eastern
Sat 21/1118:45
HAN
-
LHR
1 stop29h 45m
China Eastern
Deal found 19/7£483
Wed 4/1121:00
LHR
-
HAN
2 stops35h 15m
China Eastern
Wed 25/1116:15
HAN
-
LHR
2 stops32h 15m
China Eastern
Deal found 18/7£484
Wed 26/822:00
LHR
-
HAN
1 stop16h 05m
Multiple Airlines
Wed 14/1019:45
HAN
-
LHR
1 stop29h 35m
Multiple Airlines
Deal found 16/7£485
Tue 3/1121:00
LHR
-
HAN
2 stops34h 45m
China Eastern
Tue 24/1115:45
HAN
-
LHR
2 stops32h 45m
China Eastern
Deal found 16/7£485
Mon 24/822:10
LHR
-
HAN
1 stop18h 50m
China Southern
Tue 13/1008:15
HAN
-
LHR
1 stop17h 05m
China Southern
Deal found 16/7£488
Mon 24/820:50
LHR
-
HAN
2 stops35h 10m
Multiple Airlines
Mon 7/911:05
HAN
-
LHR
1 stop38h 15m
Multiple Airlines
Deal found 17/7£488
Thu 5/1121:35
LHR
-
HAN
2 stops30h 40m
Air China
Wed 18/1118:15
HAN
-
LHR
2 stops32h 25m
Air China
Deal found 19/7£490
Sun 22/1121:00
LHR
-
PQC
2 stops41h 35m
Multiple Airlines
Sun 6/1222:10
PQC
-
LHR
2 stops26h 20m
Multiple Airlines
Deal found 18/7£582

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 19 July 2026.

Round-trip from

£479

One-way from

£305

Popular in

July

Cheapest in

September

Average price

£830

Good round-trip deal

£747 or less

Good one-way deal

£426 or less
Hainan Airlines
  • Hainan Airlines
  • 26/8-6/9
  • 3 total stops
  • 44h 25m total
  • London to Vietnam
Search Deals
18/8
  • 18/8
  • 3 total stops
  • 40h 15m total
  • London to Vietnam
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£63 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 July 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 19 July 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

Thu 5/11

21:00-01:45

1 stop21h 45m

Hanoi Noibai

Thu 19/11

02:45-17:30

1 stop21h 45m

£496

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Tue 10/11

21:00-01:45

1 stop21h 45m

Hanoi Noibai

Fri 27/11

02:45-17:30

1 stop21h 45m

£499

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Sun 27/9

21:20-14:00

1 stop34h 40m

Hanoi Noibai

Sat 3/10

18:45-18:40

1 stop29h 55m

£537

LondonHo Chi Minh City

LHR - SGN

LHRSGN

London Heathrow

Mon 10/8

20:50-19:05

2 stops40h 15m

Ho Chi Minh City

Thu 10/9

10:05-06:30

2 stops26h 25m

£676

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Sun 20/9

08:25-09:35

2 stops43h 10m

Hanoi Noibai

Sun 11/10

10:35-19:10

2 stops38h 35m

£699

LondonHo Chi Minh City

LHR - SGN

LHRSGN

London Heathrow

Mon 4/1

20:05-10:00

2 stops30h 55m

Ho Chi Minh City

Sat 30/1

16:40-05:55

2 stops20h 15m

£705

LondonHo Chi Minh City

LHR - SGN

LHRSGN

London Heathrow

Sat 7/11

21:00-16:00

3 stops60h 00m

Ho Chi Minh City

Sun 22/11

16:55-17:30

3 stops55h 35m

£706

LondonHaiphong

LHR - HPH

LHRHPH

London Heathrow

Tue 29/9

19:50-20:00

1 stop18h 10m

Haiphong Catbi

Mon 19/10

06:20-16:55

2 stops64h 35m

£741

LondonTam Ky

LHR - VCL

LHRVCL

London Heathrow

Wed 16/9

18:55-08:35

1 stop31h 40m

Tam Ky Chu Lai Intl

Sun 20/9

14:45-19:50

2 stops35h 05m

£748

LondonDa Nang

LHR - DAD

LHRDAD

London Heathrow

Mon 31/8

18:55-17:35

1 stop16h 40m

Da Nang

Mon 7/9

17:25-17:50

1 stop30h 25m

£748

Flights are sorted by cheapest return flights first.

Deals found on 14/7

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
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 £592). Flying from London Heathrow Airport to Vietnam in July is currently the most expensive (average of £888). 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 19 July 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
280 reviews
Check prices

Boarding

7.8

Entertainment

6.3

Comfort

7.7

Food

6.9

Crew

8.3

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
280 reviews
Vietnam Airlines
7.7
Good
280 reviews
Check prices

Boarding

7.8

Entertainment

6.3

Comfort

7.7

Food

6.9

Crew

8.3

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
1,417 reviews
Vietnam Airlines
7.7
Good
280 reviews
Check prices

Boarding

7.8

Entertainment

6.3

Comfort

7.7

Food

6.9

Crew

8.3

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
7.4
Good
163 reviews
Vietnam Airlines
7.7
Good
280 reviews
Check prices

Boarding

7.8

Entertainment

6.3

Comfort

7.7

Food

6.9

Crew

8.3

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
7.3
Good
3,747 reviews
Vietnam Airlines
7.7
Good
280 reviews
Check prices

Boarding

7.8

Entertainment

6.3

Comfort

7.7

Food

6.9

Crew

8.3

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
1,481 reviews
Vietnam Airlines
7.7
Good
280 reviews
Check prices

Boarding

7.8

Entertainment

6.3

Comfort

7.7

Food

6.9

Crew

8.3

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 £741, China Eastern can have you in Vietnam from London Heathrow Airport in 18h 10m. Airlines will cover a distance of 5794 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 £1,629 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 £446.

  • 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 £592). Flying from London Heathrow Airport to Vietnam in July is currently the most expensive (average of £888). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Heathrow to Vietnam

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Suvarnabhumi flights
Gatwick to Suvarnabhumi flights
Stansted to Suvarnabhumi flights
London City to Suvarnabhumi flights
Heathrow to Haneda flights
Gatwick to Don Mueang Intl flights
Heathrow to New Delhi flights
Heathrow to Hong Kong flights
Heathrow to Don Mueang Intl flights
Heathrow to Colombo flights
Heathrow to Narita flights
Heathrow to Kuala Lumpur Intl flights
Luton to Suvarnabhumi flights
Heathrow to Mumbai flights
Gatwick to Haneda flights
Heathrow to Manila flights
Gatwick to Narita flights
Stansted to Narita flights
Stansted to Haneda flights
Gatwick to Manila flights
Gatwick to Kuala Lumpur Intl flights
Heathrow to Incheon Intl flights
London City to Narita flights
Heathrow to Singapore flights
Stansted to Manila flights
Heathrow to Islamabad flights
Stansted to New Delhi flights
Gatwick to Colombo flights
Gatwick to Singapore flights
Gatwick to New Delhi flights
Heathrow to Denpasar flights
Heathrow to Hongqiao Intl flights
London City to Haneda flights
Gatwick to Hong Kong flights
Heathrow to Phuket City flights
London City to Manila flights
Stansted to Colombo flights
Heathrow to Lahore flights
Gatwick to Denpasar flights
London City to Hong Kong flights
Heathrow to Hyderabad flights
Stansted to Kuala Lumpur Intl flights
Stansted to Mumbai flights
Gatwick to Mumbai flights
Stansted to Hong Kong flights
Stansted to Denpasar flights
London City to Denpasar flights
London City to Kuala Lumpur Intl flights
Heathrow to Kathmandu 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 19 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Hainan AirlinesCheapest£189Average£311FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
Etihad AirwaysCheapest£341Average£686FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Air ChinaCheapest£364Average£456FlexibilityNo cancel feeOn-time67%
Search Air China flights
Air IndiaCheapest£368Average£626FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Shenzhen AirlinesCheapest£376Average£492FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
China EasternCheapest£380Average£486FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
China SouthernCheapest£407Average£567FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air FranceCheapest£505Average£547FlexibilityNo cancel feeOn-time77%
Search Air France flights
Malaysia AirlinesCheapest£515Average£756FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Vietnam AirlinesCheapest£550Average£825FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines 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!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.