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Cheap flights from London Heathrow Airport to Vietnam from £255

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 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SGN
15 Feb — 22 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Vietnam

Keep the following information in mind while searching for Heathrow to Vietnam flight deals. Data was last updated 16 January 2026.

Round-trip from

£374

One-way from

£255

Popular in

July

Cheapest in

November

Average price

£598

Good round-trip deal

£629 or less

Good one-way deal

£445 or less
Hainan Airlines
  • Hainan Airlines
  • 11/3-24/3
  • 2 total stops
  • 43h 30m total
  • London to Vietnam
Search Deals
Hainan Airlines
  • Hainan Airlines
  • 11/3
  • 1 total stop
  • 19h 25m total
  • London to Vietnam
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£66 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 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

Find 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 16 January 2026.

Wed 11/319:45
LHR
-
HAN
1 stop19h 25m
Hainan Airlines
Tue 24/323:15
HAN
-
LHR
1 stop24h 05m
Hainan Airlines
Deal found 14/1£374
Wed 21/119:45
LHR
-
HAN
1 stop19h 25m
Hainan Airlines
Tue 27/123:15
HAN
-
LHR
1 stop24h 05m
Hainan Airlines
Deal found 15/1£378
Wed 4/319:45
LHR
-
HAN
1 stop19h 25m
Hainan Airlines
Sun 22/323:15
HAN
-
LHR
2 stops25h 40m
Hainan Airlines
Deal found 14/1£381
Fri 23/122:00
LHR
-
HAN
1 stop18h 15m
China Southern
Mon 16/208:15
HAN
-
LHR
1 stop17h 20m
China Southern
Deal found 14/1£383
Wed 4/319:45
LHR
-
HAN
1 stop19h 25m
Hainan Airlines
Thu 19/323:15
HAN
-
LHR
2 stops25h 20m
Hainan Airlines
Deal found 15/1£386
Wed 11/319:45
LHR
-
HAN
1 stop19h 25m
Hainan Airlines
Tue 17/323:15
HAN
-
LHR
1 stop24h 05m
Hainan Airlines
Deal found 15/1£388
Wed 4/319:45
LHR
-
HAN
1 stop19h 25m
Hainan Airlines
Tue 17/323:15
HAN
-
LHR
1 stop24h 05m
Hainan Airlines
Deal found 15/1£389
Wed 18/221:00
LHR
-
HAN
1 stop23h 20m
China Eastern
Tue 31/302:20
HAN
-
LHR
1 stop22h 20m
China Eastern
Deal found 14/1£391
Wed 18/221:00
LHR
-
HAN
1 stop23h 20m
China Eastern
Tue 3/304:20
HAN
-
LHR
1 stop20h 10m
China Eastern
Deal found 13/1£392
Wed 11/319:45
LHR
-
HAN
1 stop19h 25m
Hainan Airlines
Thu 26/323:15
HAN
-
LHR
2 stops25h 20m
Hainan Airlines
Deal found 14/1£394
Wed 28/121:00
LHR
-
SGN
3 stops60h 00m
China Eastern
Thu 5/316:55
SGN
-
LHR
2 stops31h 35m
China Eastern
Deal found 15/1£423
Sat 18/421:20
LHR
-
SGN
1 stop22h 15m
China Eastern
Tue 12/502:35
SGN
-
LHR
1 stop22h 05m
China Eastern
Deal found 15/1£424

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 16 January 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Vietnam that are best for you.

Fly from

Heathrow

Fly to

Vietnam

Route

Depart

Return

Price

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Wed 18/2

21:00-01:45

1 stop21h 45m

Hanoi Noibai

Tue 10/3

02:45-17:30

1 stop21h 45m

£416

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Mon 16/2

21:00-01:45

1 stop21h 45m

Hanoi Noibai

Sun 8/3

16:15-17:30

2 stops32h 15m

£421

LondonHo Chi Minh City

LHR - SGN

LHRSGN

London Heathrow

Mon 16/2

21:00-03:40

1 stop23h 40m

Ho Chi Minh City

Tue 10/3

04:40-17:30

1 stop19h 50m

£497

LondonHo Chi Minh City

LHR - SGN

LHRSGN

London Heathrow

Tue 17/2

21:00-01:10

1 stop21h 10m

Ho Chi Minh City

Wed 11/3

04:40-17:30

1 stop19h 50m

£498

LondonHo Chi Minh City

LHR - SGN

LHRSGN

London Heathrow

Tue 17/2

21:00-01:10

1 stop21h 10m

Ho Chi Minh City

Thu 5/3

04:40-17:30

1 stop19h 50m

£498

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Sun 1/2

21:00-01:45

1 stop21h 45m

Hanoi Noibai

Mon 2/3

04:20-17:30

1 stop20h 10m

£501

LondonHo Chi Minh City

LHR - SGN

LHRSGN

London Heathrow

Tue 17/2

22:00-01:20

1 stop20h 20m

Ho Chi Minh City

Thu 5/3

08:00-18:35

1 stop17h 35m

£510

LondonNha Trang

LHR - CXR

LHRCXR

London Heathrow

Mon 9/3

22:00-08:05

2 stops27h 05m

Nha Trang Cam Ranh

Thu 12/3

18:45-18:35

1 stop30h 50m

£529

LondonNha Trang

LHR - CXR

LHRCXR

London Heathrow

Sat 7/3

22:00-08:05

2 stops27h 05m

Nha Trang Cam Ranh

Wed 11/3

21:30-18:35

2 stops28h 05m

£539

LondonPhu Quoc

LHR - PQC

LHRPQC

London Heathrow

Tue 3/3

21:00-06:40

2 stops26h 40m

Phu Quoc Duong Dang

Fri 13/3

02:50-17:30

1 stop21h 40m

£551

Flights are sorted by cheapest return flights first.

Deals found on 15/1

Showing 1-10 of 60 results
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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 £371). Flying from London Heathrow Airport to Vietnam in August is currently the most expensive (average of £585). 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.

What is the cheapest time of day to fly from LHR to VN?

Find hourly flight availability from Heathrow to Vietnam. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 16 January 2026.

When flying from London Heathrow Airport to Vietnam, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How often are flights from London to Vietnam delayed?

About 17% of weekly flights between London and Vietnam have experienced delays in the past year, with the average delay time being 182 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?

Wednesday 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 17% 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 16 January 2026.
See what other customers who have flown with Cathay Pacific, Vietnam Airlines, 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.
Cathay Pacific
7.6
Good
1,132 reviews
Check prices

Comfort

7.6

Overall

7.6

Entertainment

7.8

Food

7.3

Boarding

7.9

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Chi-Dung,Dec 2025

HKG - SGN

Boarding was crazy. Flight was delayed for an hour and passengers were trap on flight without water for an hour. Meals were disappointedly poor. Only one round of very little beverages (I was served half of a sparkling can—didnt know why crew refused yo serve me whole can). Crew were cold and rude and unattentive. Toilets are dirty terribly. Worst flight ever.
Cathay Pacific
7.6
Good
1,132 reviews
Cathay Pacific
7.6
Good
1,132 reviews
Check prices

Comfort

7.6

Overall

7.6

Entertainment

7.8

Food

7.3

Boarding

7.9

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Chi-Dung,Dec 2025

HKG - SGN

Boarding was crazy. Flight was delayed for an hour and passengers were trap on flight without water for an hour. Meals were disappointedly poor. Only one round of very little beverages (I was served half of a sparkling can—didnt know why crew refused yo serve me whole can). Crew were cold and rude and unattentive. Toilets are dirty terribly. Worst flight ever.
Vietnam Airlines
7.6
Good
220 reviews
Cathay Pacific
7.6
Good
1,132 reviews
Check prices

Comfort

7.6

Overall

7.6

Entertainment

7.8

Food

7.3

Boarding

7.9

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Chi-Dung,Dec 2025

HKG - SGN

Boarding was crazy. Flight was delayed for an hour and passengers were trap on flight without water for an hour. Meals were disappointedly poor. Only one round of very little beverages (I was served half of a sparkling can—didnt know why crew refused yo serve me whole can). Crew were cold and rude and unattentive. Toilets are dirty terribly. Worst flight ever.
Qatar Airways
7.4
Good
3,715 reviews
Cathay Pacific
7.6
Good
1,132 reviews
Check prices

Comfort

7.6

Overall

7.6

Entertainment

7.8

Food

7.3

Boarding

7.9

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Chi-Dung,Dec 2025

HKG - SGN

Boarding was crazy. Flight was delayed for an hour and passengers were trap on flight without water for an hour. Meals were disappointedly poor. Only one round of very little beverages (I was served half of a sparkling can—didnt know why crew refused yo serve me whole can). Crew were cold and rude and unattentive. Toilets are dirty terribly. Worst flight ever.
China Southern
7.3
Good
133 reviews
Cathay Pacific
7.6
Good
1,132 reviews
Check prices

Comfort

7.6

Overall

7.6

Entertainment

7.8

Food

7.3

Boarding

7.9

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Chi-Dung,Dec 2025

HKG - SGN

Boarding was crazy. Flight was delayed for an hour and passengers were trap on flight without water for an hour. Meals were disappointedly poor. Only one round of very little beverages (I was served half of a sparkling can—didnt know why crew refused yo serve me whole can). Crew were cold and rude and unattentive. Toilets are dirty terribly. Worst flight ever.
British Airways
6.7
Okay
7,680 reviews
Cathay Pacific
7.6
Good
1,132 reviews
Check prices

Comfort

7.6

Overall

7.6

Entertainment

7.8

Food

7.3

Boarding

7.9

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Chi-Dung,Dec 2025

HKG - SGN

Boarding was crazy. Flight was delayed for an hour and passengers were trap on flight without water for an hour. Meals were disappointedly poor. Only one round of very little beverages (I was served half of a sparkling can—didnt know why crew refused yo serve me whole can). Crew were cold and rude and unattentive. Toilets are dirty terribly. Worst flight ever.

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 £510, China Eastern can have you in Vietnam from London Heathrow Airport in 20h 20m. Airlines will cover a distance of 6345 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 (£237), Air China (£257), and China Eastern (£272).

  • 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 Vietnam Airlines (92%), Scandinavian Airlines (92%) or Cambodia Angkor Air (92%) 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 £1,158 for a flight from London Heathrow Airport to Vietnam. The cheapest flight overall is £409 while the most popular route, (London Heathrow - Hanoi Noibai) is currently priced at £374.

  • 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 £371). Flying from London Heathrow Airport to Vietnam in August is currently the most expensive (average of £585). 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 16 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest£366Average£442FlexibilityNo cancel feeOn-time67%
Search Air China flights
Air IndiaCheapest£371Average£595FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Shenzhen AirlinesCheapest£379Average£490FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
China EasternCheapest£380Average£484FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
China SouthernCheapest£384Average£563FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Malaysia AirlinesCheapest£508Average£620FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Etihad AirwaysCheapest£512Average£612FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Air FranceCheapest£517Average£568FlexibilityNo cancel feeOn-time77%
Search Air France flights
Singapore AirlinesCheapest£551Average£787FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Vietnam AirlinesCheapest£561Average£788FlexibilityNo 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!

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