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Cheap flights from London Heathrow Airport to Bangkok from $521

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Bangkok departing on 1/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from London Heathrow Airport to Bangkok

Cheap return flights

Shenzhen Airlines Logo
22:05 - 02:15LHR-BKK
22h 10m1 stop
Shenzhen Airlines Logo
03:15 - 20:00BKK-LHR
22h 45m1 stop
$735Shenzhen Airlines
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Wed, 17 Sep - Thu, 16 Oct
Shenzhen Airlines Logo
22:05 - 11:10LHR-BKK
31h 05m1 stop
Shenzhen Airlines Logo
19:30 - 19:10BKK-LHR
30h 40m1 stop
$737Shenzhen Airlines
Find Deal
Sat, 13 Sep - Thu, 11 Dec
Air India Logo
12:30 - 19:35LHR-BKK
25h 05m1 stop
Air India Logo
14:45 - 10:15BKK-LHR
25h 30m1 stop
$991Air India
Find Deal
Tue, 9 Sep - Tue, 16 Sep
Air India Logo
21:05 - 13:35LHR-BKK
34h 30m1 stop
Air India Logo
20:50 - 11:30BKK-LHR
20h 40m1 stop
$997Air India
Find Deal
Wed, 10 Sep - Wed, 17 Sep
Austrian Airlines Logo
19:30 - 14:50LHR-BKK
13h 20m1 stop
Austrian Airlines Logo
23:40 - 08:20BKK-LHR
14h 40m1 stop
$1,043Austrian Airlines
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Tue, 2 Sep - Sun, 14 Sep
Austrian Airlines Logo
06:00 - 14:50LHR-BKK
26h 50m1 stop
Austrian Airlines Logo
23:40 - 08:45BKK-LHR
15h 05m1 stop
$1,045Austrian Airlines
Find Deal
Tue, 19 Aug - Sat, 20 Sep
Oman Air Logo
20:50 - 17:45LHR-BKK
14h 55m1 stop
Oman Air Logo
19:10 - 19:10BKK-LHR
30h 00m1 stop
$1,046Oman Air
Find Deal
Wed, 10 Sep - Wed, 17 Sep
Oman Air Logo
20:50 - 17:45LHR-BKK
14h 55m1 stop
Oman Air Logo
19:10 - 19:10BKK-LHR
30h 00m1 stop
$1,048Oman Air
Find Deal
Tue, 9 Sep - Tue, 16 Sep
Etihad Airways Logo
14:45 - 23:55LHR-BKK
27h 10m1 stop
Etihad Airways Logo
02:55 - 12:45BKK-LHR
15h 50m1 stop
$1,073Etihad Airways
Find Deal
Tue, 9 Sep - Mon, 15 Sep
Etihad Airways Logo
21:45 - 23:55LHR-BKK
20h 10m1 stop
Etihad Airways Logo
02:55 - 15:15BKK-LHR
18h 20m1 stop
$1,093Etihad Airways
Find Deal
Tue, 16 Sep - Tue, 7 Oct

Air India flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport

Our best Air India deals on London Heathrow Airport to Bangkok Suvarnabhumi Airport flight tickets
Air India
9 Sept
LHR12:30London Heathrow
25h 05m
1 stop
BKK19:35Bangkok Suvarnabhumi
16 Sept
BKK14:45Bangkok Suvarnabhumi
25h 30m
1 stop
LHR10:15London Heathrow
$991
Find similar
Air India
10 Sept
LHR21:05London Heathrow
34h 30m
1 stop
BKK13:35Bangkok Suvarnabhumi
17 Sept
BKK20:50Bangkok Suvarnabhumi
20h 40m
1 stop
LHR11:30London Heathrow
$997
Find similar

Etihad Airways flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport

Our best Etihad Airways deals on London Heathrow Airport to Bangkok Suvarnabhumi Airport flight tickets
Etihad Airways
9 Sept
LHR14:45London Heathrow
27h 10m
1 stop
BKK23:55Bangkok Suvarnabhumi
15 Sept
BKK02:55Bangkok Suvarnabhumi
15h 50m
1 stop
LHR12:45London Heathrow
$1,073
Find similar
Etihad Airways
16 Sept
LHR21:45London Heathrow
20h 10m
1 stop
BKK23:55Bangkok Suvarnabhumi
7 Oct
BKK02:55Bangkok Suvarnabhumi
18h 20m
1 stop
LHR15:15London Heathrow
$1,093
Find similar
Etihad Airways
29 Sept
LHR14:45London Heathrow
27h 10m
1 stop
BKK23:55Bangkok Suvarnabhumi
13 Oct
BKK02:55Bangkok Suvarnabhumi
18h 20m
1 stop
LHR15:15London Heathrow
$1,096
Find similar

See travel insights to Bangkok from

How to get the cheapest flight ticket from London Heathrow Airport to Bangkok Suvarnabhumi Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Bangkok Suvarnabhumi Airport?

If you are unable to visit Bangkok Suvarnabhumi Airport during the month of May, then departing from London Heathrow Airport during the month June is also very affordable. Most momondo users find prices during this month for around $1,267.

What is the cheapest day to depart on your flight to Bangkok Suvarnabhumi Airport?

On average, the least expensive day to fly to Bangkok Suvarnabhumi Airport from London Heathrow Airport is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $1,429. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Bangkok Suvarnabhumi Airport on Friday is $2,675.

What is the cheapest time of day to depart on your flight to Bangkok Suvarnabhumi Airport?

According to our data, the cheapest time of day to fly to Bangkok Suvarnabhumi Airport is in the afternoon. momondo users have found flights departing from London Heathrow Airport to Bangkok Suvarnabhumi Airport in the afternoon for as low as $1,011. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $2,235 on average. Flights to Bangkok Suvarnabhumi Airport from London Heathrow Airport in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest London Heathrow to Bangkok Suvarnabhumi flight route?

Fly from London Heathrow to Bangkok Suvarnabhumi for the best London Heathrow - Bangkok Suvarnabhumi flight prices

How far in advance should I book a flight to Bangkok Suvarnabhumi Airport?

You are more likely to see cheaper flights to Bangkok Suvarnabhumi Airport from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Bangkok Suvarnabhumi Airport for around $1,438 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bangkok Suvarnabhumi Airport from London Heathrow Airport for as low as $1,328 on momondo.

What cabin class options are available on London Heathrow to Bangkok Suvarnabhumi flights?

There are 3 cabin classes available to choose from on London Heathrow to Bangkok Suvarnabhumi flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London Heathrow Airport to Bangkok Suvarnabhumi Airport flights?

You could potentially save up to 44% on your flight if you consider stops on a London Heathrow Airport to Bangkok Suvarnabhumi Airport flight.

How have London Heathrow Airport to Bangkok Suvarnabhumi Airport flight prices changed over time?

As of July 2025, prices for London Heathrow Airport to Bangkok Suvarnabhumi Airport flights are approximately 23% cheaper when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Bangkok Suvarnabhumi Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London Heathrow Airport to Bangkok Suvarnabhumi Airport (LHR to BKK) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport

Best price found

$521

Fastest flight time

13h 20m

Direct flights

Every day
The best one-way flight to Bangkok Suvarnabhumi Airport from London Heathrow Airport in the past 72 hours is $521. The best return flight deal from London Heathrow Airport to Bangkok Suvarnabhumi Airport found on momondo in the last 72 hours is $735.
The fastest flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport takes 13h 20m
Direct flights go from London Heathrow Airport to Bangkok Suvarnabhumi Airport every day.
Search flight deals

  • How far is London Heathrow to Bangkok Suvarnabhumi by plane?

    The distance between London Heathrow and Bangkok Suvarnabhumi is about 9570.2 km. 13h 20m is a normal flight duration for this route.

  • When did momondo last update prices for flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport?

    Prices for flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport refresh daily.

  • How old do you have to be to fly from London Heathrow Airport to Bangkok Suvarnabhumi Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to Bangkok Suvarnabhumi Airport.

  • What documentation or ID do you need to fly to Bangkok Suvarnabhumi Airport?

    The travel and health documents required for your trip to Bangkok Suvarnabhumi Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Bangkok Suvarnabhumi Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from London Heathrow Airport to Bangkok Suvarnabhumi Airport?

Travelling to a place near Bangkok?

Book flights to Bangkok if you plan to visit one of these locations
Pattaya
Chonburi
Ayutthaya
Ko Samet
Cha-am
Kanchanaburi
Sattahip
Ko Lan

Why use momondo?

Why should I use momondo to find a flight deal from London to Bangkok?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Bangkok for you.

Can I find flights from London to Bangkok with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Bangkok from London with this policy.

How can momondo help me find flights from London to Bangkok?

Once all potential London to Bangkok flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from London to Bangkok right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of London to Bangkok flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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