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

For as low as £480, Shenzhen Airlines can have you in Vietnam from London Heathrow Airport in 21h. 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 (£244), Etihad Airways (£254), and Air China (£256).

In terms of precipitation, rainfall in Vietnam ranges from 0.0 - 340.0 inches per month. September is typically the wettest month, when rainfall can reach 340.0 mm. February is typically the driest time to visit Vietnam when rainfall is around 0.0 mm.

If weather is an important factor for your trip to Vietnam, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 30.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.0 C).

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 £1,672 for a flight from London Heathrow Airport to Vietnam. The cheapest flight overall is £392 while the most popular route, (London Heathrow - Hanoi Noibai) is currently priced at £359.

What are the most popular airlines that fly from London Heathrow Airport to Vietnam?

Before booking your flight from London Heathrow Airport to Vietnam check out the most popular airlines for this route: Vietnam Airlines, Cathay Pacific or China Southern.

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

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.

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.

£261+ Cheap Flights from London Heathrow Airport to Vietnam

Cheap flight deals from Heathrow to Vietnam

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

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 26 October 2026.

Sun 22/1120:25 -

1 stop23h 50m

Sun 6/1204:30 -

1 stop18h 25m

Deal found 26/10£389

Sun 22/1120:25 -

1 stop23h 50m

Tue 8/1204:30 -

1 stop20h 20m

Deal found 26/10£389

Wed 18/1117:45 -

1 stop26h 30m

Thu 3/1204:30 -

1 stop18h 25m

Deal found 26/10£390

Fri 20/1121:10 -

1 stop21h 00m

Fri 27/1102:10 -

1 stop24h 00m

Deal found 22/10£391

Fri 27/1121:10 -

1 stop21h 00m

Thu 10/1202:10 -

1 stop24h 00m

Deal found 25/10£392

Sat 5/1221:10 -

1 stop21h 00m

Sat 19/1202:10 -

1 stop24h 00m

Deal found 26/10£392

Tue 1/1217:45 -

1 stop26h 30m

Mon 21/1204:30 -

1 stop18h 25m

Deal found 22/10£393

Sat 28/1120:25 -

1 stop23h 50m

Thu 10/1204:30 -

1 stop18h 25m

Deal found 22/10£394

Tue 27/1022:30 -

1 stop20h 00m

Wed 11/1102:30 -

1 stop25h 00m

Deal found 23/10£395

Tue 24/1122:00 -

1 stop29h 40m

Mon 7/1219:45 -

1 stop29h 50m

Deal found 22/10£395

Sat 5/1221:10 -

1 stop21h 20m

Mon 18/102:30 -

1 stop25h 00m

Deal found 23/10£396

Wed 18/1121:05 -

1 stop17h 10m

Sun 29/1122:20 -

2 stops26h 55m

Deal found 22/10£398

Best flights from Heathrow to Vietnam
Discover carefully curated flight deals from Heathrow to Vietnam that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 26 October 2026.

Wed 3/221:10 -

1 stop21h 00m

Sat 20/302:10 -

1 stop24h 00m

Deal found 26/10£480

Sat 5/1221:10 -

2 stops29h 10m

Tue 15/1216:45 -

2 stops33h 25m

Deal found 24/10£494

Sun 6/1222:00 -

1 stop28h 40m

Sun 13/1210:40 -

1 stop38h 55m

Deal found 22/10£655

Wed 27/120:05 -

2 stops40h 00m

Sun 21/210:15 -

2 stops26h 40m

Deal found 24/10£702

Thu 7/119:20 -

2 stops37h 30m

Tue 12/109:25 -

2 stops36h 05m

Deal found 22/10£722

Mon 16/1122:05 -

1 stop28h 15m

Wed 25/1110:20 -

1 stop35h 40m

Deal found 21/10£776

Mon 22/222:00 -

2 stops40h 30m

Mon 19/423:30 -

2 stops26h 45m

Deal found 22/10£791

Sat 30/111:00 -

Nonstop12h 10m

Wed 17/223:00 -

1 stop39h 15m

Deal found 24/10£801

Mon 22/210:40 -

1 stop22h 15m

Mon 19/411:55 -

1 stop24h 00m

Deal found 22/10£818

Wed 25/1120:05 -

2 stops55h 50m

Wed 2/1216:45 -

3 stops27h 55m

Deal found 26/10£904

Tue 5/122:30 -

1 stop19h 40m

Sat 30/114:55 -

1 stop35h 15m

Deal found 26/10£519

Mon 23/1120:15 -

2 stops36h 15m

Wed 25/1122:40 -

2 stops38h 55m

Deal found 22/10£1,100

Fri 8/121:10 -

1 stop21h 20m

Tue 12/113:50 -

1 stop36h 20m

Deal found 22/10£555

Sat 5/1222:00 -

1 stop28h 40m

Tue 15/1210:40 -

1 stop38h 55m

Deal found 24/10£680

Sun 10/120:55 -

2 stops35h 55m

Sun 17/115:10 -

2 stops27h 55m

Deal found 22/10£780

Thu 4/316:50 -

1 stop33h 55m

Tue 16/310:30 -

1 stop35h 30m

Deal found 24/10£802

Mon 30/1121:10 -

1 stop21h 20m

Thu 29/402:50 -

1 stop23h 10m

Deal found 26/10£665

Tue 12/109:00 -

2 stops24h 55m

Mon 18/120:25 -

2 stops18h 55m

Deal found 22/10£817

Thu 3/1220:05 -

2 stops31h 10m

Sat 1/516:40 -

2 stops19h 50m

Deal found 26/10£832

Thu 4/222:00 -

1 stop28h 40m

Fri 19/210:40 -

1 stop38h 55m

Deal found 26/10£794

Wed 7/406:20 -

2 stops20h 40m

Wed 21/417:05 -

1 stop29h 50m

Deal found 26/10£883

Wed 3/322:05 -

1 stop28h 40m

Sat 13/318:55 -

1 stop32h 15m

Deal found 24/10£802

Sat 9/119:20 -

2 stops37h 30m

Fri 15/109:25 -

2 stops28h 15m

Deal found 22/10£817

Tue 30/316:50 -

2 stops23h 00m

Mon 12/423:30 -

2 stops25h 10m

Deal found 25/10£969

Wed 7/406:45 -

2 stops22h 40m

Wed 21/409:35 -

1 stop37h 20m

Deal found 24/10£889

Mon 23/1106:20 -

2 stops24h 10m

Wed 25/1122:15 -

2 stops46h 30m

Deal found 25/10£895

Thu 25/320:05 -

2 stops32h 55m

Fri 9/413:05 -

2 stops23h 25m

Deal found 24/10£967

Wed 24/307:45 -

2 stops19h 50m

Wed 7/418:20 -

2 stops25h 05m

Deal found 22/10£892

Mon 25/111:00 -

1 stop25h 15m

Wed 17/200:20 -

Nonstop13h 55m

Deal found 21/10£913

Mon 29/319:50 -

2 stops44h 00m

Mon 12/423:30 -

2 stops22h 40m

Deal found 25/10£1,048

Find flight deals from Heathrow to Vietnam

Round-trip from	£389
One-way from	£261
Popular in	December
Cheapest in	September
Average price	£622
Good round-trip deal	£669 or less
Good one-way deal	£592 or less

Air China
22/11-6/12
2 total stops
42h 15m total
London to Vietnam

Search Deals

Hainan Airlines
25/11-31/12
1 total stop
17h 10m total
London to Vietnam

Search Deals

High demand for flights, 3% potential price rise

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 October 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

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

LondonDa Nang

LHR London Heathrow - DAD Da Nang

LHRDAD

London Heathrow

Wed 6/1

21:30-17:45

2 stops37h 15m

Da Nang

Wed 31/12

00:00-17:00

Nonstop0h 00m

£308

LondonHanoi

LHR London Heathrow - HAN Hanoi Noibai

LHRHAN

London Heathrow

Sat 30/1

21:10-13:55

1 stop33h 45m

Hanoi Noibai

Wed 31/12

00:00-17:00

Nonstop0h 00m

£310

LondonHanoi

LHR London Heathrow - HAN Hanoi Noibai

LHRHAN

London Heathrow

Sat 6/2

21:10-09:40

1 stop29h 30m

Hanoi Noibai

Wed 31/12

00:00-17:00

Nonstop0h 00m

£311

LondonPhu Quoc

LHR London Heathrow - PQC Phu Quoc Duong Dang

LHRPQC

London Heathrow

Sun 22/11

21:10-06:40

2 stops26h 30m

Phu Quoc Duong Dang

Wed 31/12

00:00-17:00

Nonstop0h 00m

£318

LondonPhu Quoc

LHR London Heathrow - PQC Phu Quoc Duong Dang

LHRPQC

London Heathrow

Wed 11/11

21:10-19:15

2 stops39h 05m

Phu Quoc Duong Dang

Wed 31/12

00:00-17:00

Nonstop0h 00m

£324

LondonDa Nang

LHR London Heathrow - DAD Da Nang

LHRDAD

London Heathrow

Tue 15/12

09:55-15:50

3 stops46h 55m

Da Nang

Wed 31/12

00:00-17:00

Nonstop0h 00m

£360

LondonPhu Quoc

LHR London Heathrow - PQC Phu Quoc Duong Dang

LHRPQC

London Heathrow

Wed 6/1

06:50-20:30

3 stops30h 40m

Phu Quoc Duong Dang

Wed 31/12

00:00-17:00

Nonstop0h 00m

£383

LondonDa Nang

LHR London Heathrow - DAD Da Nang

LHRDAD

London Heathrow

Mon 11/1

17:45-01:15

3 stops24h 30m

Da Nang

Wed 31/12

00:00-17:00

Nonstop0h 00m

£388

LondonPhu Quoc

LHR London Heathrow - PQC Phu Quoc Duong Dang

LHRPQC

London Heathrow

Tue 29/12

18:00-11:00

3 stops58h 00m

Phu Quoc Duong Dang

Wed 31/12

00:00-17:00

Nonstop0h 00m

£404

LondonDa Nang

LHR London Heathrow - DAD Da Nang

LHRDAD

London Heathrow

Thu 25/3

07:05-16:50

3 stops50h 45m

Da Nang

Wed 31/12

00:00-17:00

Nonstop0h 00m

£408

Flights are sorted by cheapest return flights first.

Deals found on 22/10

Showing 1-10 of 60 resultsSorted by cheapest first

...

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.

LHR-HAN

LHR-SGN

LHR-DAD

LHR-CXR

LHR-PQC

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

LHR-VN0

LHR-HAN

LHR-SGN

LHR-DAD

LHR-CXR

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

Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Vietnam (average of £642). Flying from London Heathrow Airport to Vietnam in December is currently the most expensive (average of £950). 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 10% of weekly flights between London and Vietnam have experienced delays in the past year, with the average delay time being 137 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 Thursday 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 10% 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 87 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

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

294 reviews

Check prices

Reviews

1 / 17

6.0

Good

Laura,Sept 2026

DAD - SGN

Flight was delayed - no communication until we boarded nearly an hour late

Vietnam Airlines

7.7

Good

294 reviews

Vietnam Airlines

7.7

Good

294 reviews

Check prices

Reviews

1 / 17

6.0

Good

Laura,Sept 2026

DAD - SGN

Flight was delayed - no communication until we boarded nearly an hour late

Cathay Pacific

7.6

Good

1,525 reviews

Vietnam Airlines

7.7

Good

294 reviews

Check prices

Reviews

1 / 17

6.0

Good

Laura,Sept 2026

DAD - SGN

Flight was delayed - no communication until we boarded nearly an hour late

China Southern

7.5

Good

184 reviews

Vietnam Airlines

7.7

Good

294 reviews

Check prices

Reviews

1 / 17

6.0

Good

Laura,Sept 2026

DAD - SGN

Flight was delayed - no communication until we boarded nearly an hour late

Qatar Airways

7.3

Good

3,707 reviews

Vietnam Airlines

7.7

Good

294 reviews

Check prices

Reviews

1 / 17

6.0

Good

Laura,Sept 2026

DAD - SGN

Flight was delayed - no communication until we boarded nearly an hour late

Etihad Airways

7.3

Good

1,548 reviews

Vietnam Airlines

7.7

Good

294 reviews

Check prices

Reviews

1 / 17

6.0

Good

Laura,Sept 2026

DAD - SGN

Flight was delayed - no communication until we boarded nearly an hour late

Related info for your journey

How long is the flight from London Heathrow Airport to Vietnam?
For as low as £480, Shenzhen Airlines can have you in Vietnam from London Heathrow Airport in 21h. 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 (£244), Etihad Airways (£254), and Air China (£256).
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 £1,672 for a flight from London Heathrow Airport to Vietnam. The cheapest flight overall is £392 while the most popular route, (London Heathrow - Hanoi Noibai) is currently priced at £359.
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, May is the cheapest month in which you can book a flight from London Heathrow Airport to Vietnam (average of £642). Flying from London Heathrow Airport to Vietnam in December is currently the most expensive (average of £950). 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

Alternative routes

Complete your trip

Direct flights to

Flights by cabin class

Other flight options

Popular flights

Top destinations

Top regions

Alternative routes for Heathrow to Vietnam

Heathrow to Suvarnabhumi flights

Gatwick to Suvarnabhumi flights

Stansted to Suvarnabhumi flights

Heathrow to New Delhi flights

London City to Suvarnabhumi flights

Heathrow to Haneda flights

Heathrow to Don Mueang Intl flights

Heathrow to Mumbai flights

Gatwick to Don Mueang Intl flights

Luton to Suvarnabhumi flights

Heathrow to Colombo flights

Gatwick to New Delhi flights

Stansted to New Delhi flights

Heathrow to Hong Kong flights

Gatwick to Haneda flights

Heathrow to Manila flights

Heathrow to Narita flights

Gatwick to Narita flights

Heathrow to Kuala Lumpur Intl flights

Heathrow to Islamabad flights

Stansted to Narita flights

Stansted to Haneda flights

Gatwick to Manila flights

London City to Narita flights

Gatwick to Mumbai flights

Stansted to Mumbai flights

Stansted to Manila flights

Heathrow to Phuket City flights

Luton to New Delhi flights

Gatwick to Colombo flights

Gatwick to Ahmedabad flights

London City to New Delhi flights

London City to Manila flights

Heathrow to Incheon Intl flights

Heathrow to Singapore flights

Stansted to Colombo flights

Heathrow to Ahmedabad flights

Heathrow to Lahore flights

Gatwick to Singapore flights

London City to Haneda flights

Luton to Haneda flights

Heathrow to Bangalore flights

Stansted to Phuket City flights

Heathrow to Dhaka flights

Stansted to Islamabad flights

Gatwick to Lahore flights

Heathrow to Hyderabad flights

Heathrow to Hongqiao Intl flights

Stansted to Lahore flights

Top 10 airlines flying from Heathrow to Vietnam

Airline	Cheapest	Average	Flexibility	On-time
Air India	Cheapest£126	Average£632	FlexibilityNo cancel fee	On-timeN/A	Search Air India flights
Hainan Airlines	Cheapest£191	Average£393	FlexibilityNo cancel fee	On-time61%	Search Hainan Airlines flights
Etihad Airways	Cheapest£345	Average£706	FlexibilityNo cancel fee	On-time75%	Search Etihad Airways flights
Shenzhen Airlines	Cheapest£369	Average£494	FlexibilityNo cancel fee	On-time63%	Search Shenzhen Airlines flights
Air China	Cheapest£371	Average£459	FlexibilityNo cancel fee	On-time67%	Search Air China flights
China Eastern	Cheapest£381	Average£488	FlexibilityNo cancel fee	On-time62%	Search China Eastern flights
China Southern	Cheapest£396	Average£552	FlexibilityNo cancel fee	On-time69%	Search China Southern flights
Malaysia Airlines	Cheapest£527	Average£745	FlexibilityNo cancel fee	On-time67%	Search Malaysia Airlines flights
Singapore Airlines	Cheapest£563	Average£842	FlexibilityNo cancel fee	On-time81%	Search Singapore Airlines flights
Qatar Airways	Cheapest£573	Average£744	FlexibilityNo cancel fee	On-time68%	Search Qatar Airways flights

Fly with Cheapflights

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.

Cheap flights from London Heathrow Airport to Vietnam from £261

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to Vietnam

Cheapest flights from Heathrow to VietnamExplore 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 26 October 2026.

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 26 October 2026.

Best flights from Heathrow to VietnamDiscover carefully curated flight deals from Heathrow to Vietnam that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 26 October 2026.

Discover carefully curated flight deals from Heathrow to Vietnam that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 26 October 2026.

Direct flights from Heathrow to VietnamExplore direct flight options from Heathrow to Vietnam based on user searches, and compare prices and availability for your desired travel dates. Data last updated 26 October 2026.

Explore direct flight options from Heathrow to Vietnam based on user searches, and compare prices and availability for your desired travel dates. Data last updated 26 October 2026.

Last-minute flights from Heathrow to VietnamDiscover last-minute flight deals from Heathrow to Vietnam. Data last updated 26 October 2026 and is based on user searches.

Discover last-minute flight deals from Heathrow to Vietnam. Data last updated 26 October 2026 and is based on user searches.

One-way flights from Heathrow to VietnamSearch for one-way flight options from Heathrow to Vietnam. Find affordable one-way fares based on user searches. Data last updated 26 October 2026.

Search for one-way flight options from Heathrow to Vietnam. Find affordable one-way fares based on user searches. Data last updated 26 October 2026.

Find flight deals from Heathrow to Vietnam

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

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

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.

Cheapflights Insights

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

How often are flights from London to Vietnam delayed?

About 10% of weekly flights between London and Vietnam have experienced delays in the past year, with the average delay time being 137 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 Thursday 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 10% 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 87 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

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.

Related info for your journey

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

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

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

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

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

How can I find direct flights from Heathrow to Vietnam?

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

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

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.

Complete your trip

Complete your trip to Vietnam by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to

Book a non-stop flight to one of these other cities located in .

Search flights from Heathrow to Vietnam by cabin class

Find flights from Heathrow to Vietnam, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Heathrow and Vietnam flights

Browse other Heathrow and Vietnam flight options. Last updated on 26 October 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Heathrow to Vietnam flights

Consider these flights travelling from Heathrow to Vietnam.

Fly to Vietnam regions

Consider these flights travelling to Vietnam regions.

Top 10 airlines flying from Heathrow to Vietnam

Fly with Cheapflights

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

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

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

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

100% Free

Book with Flexibility

Travel Smart

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 26 October 2026.

Best flights from Heathrow to Vietnam
Discover carefully curated flight deals from Heathrow to Vietnam that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 26 October 2026.

Direct flights from Heathrow to Vietnam
Explore direct flight options from Heathrow to Vietnam based on user searches, and compare prices and availability for your desired travel dates. Data last updated 26 October 2026.

Last-minute flights from Heathrow to Vietnam
Discover last-minute flight deals from Heathrow to Vietnam. Data last updated 26 October 2026 and is based on user searches.

One-way flights from Heathrow to Vietnam
Search for one-way flight options from Heathrow to Vietnam. Find affordable one-way fares based on user searches. Data last updated 26 October 2026.