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Cheap flights from London Heathrow Airport to Bangkok from $591

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 2/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Find the cheapest flights from London Heathrow Airport to Bangkok

Cheap return flights

Enter your travel dates to find the best prices.
Shenzhen Airlines Logo
21:10 - 18:30
LHR
-
BKK
38h 20m1 stop
Shenzhen Airlines Logo
12:10 - 19:10
BKK
-
LHR
38h 00m1 stop
$897Shenzhen Airlines
Fri, 9 Jan - Sun, 18 Jan
Air China Logo
22:40 - 18:10
LHR
-
BKK
37h 30m1 stop
Air China Logo
01:30 - 20:25
BKK
-
LHR
24h 55m1 stop
$898Air China
Mon, 1 Jun - Sun, 14 Jun
Air China Logo
20:25 - 00:10
LHR
-
BKK
20h 45m1 stop
Air China Logo
19:30 - 17:50
BKK
-
LHR
29h 20m1 stop
$913Air China
Thu, 19 Feb - Thu, 5 Mar
Shenzhen Airlines Logo
21:10 - 18:30
LHR
-
BKK
38h 20m1 stop
Shenzhen Airlines Logo
03:15 - 19:10
BKK
-
LHR
22h 55m1 stop
$972Shenzhen Airlines
Fri, 6 Feb - Sat, 21 Mar
Shenzhen Airlines Logo
21:10 - 11:10
LHR
-
BKK
31h 00m1 stop
Shenzhen Airlines Logo
19:30 - 19:10
BKK
-
LHR
30h 40m1 stop
$992Shenzhen Airlines
Sat, 21 Mar - Tue, 24 Mar
Air India Logo
20:30 - 19:35
LHR
-
BKK
16h 05m1 stop
Air India Logo
20:50 - 11:05
BKK
-
LHR
21h 15m1 stop
$995Air India
Thu, 19 Feb - Thu, 5 Mar
Shenzhen Airlines Logo
21:10 - 11:10
LHR
-
BKK
31h 00m1 stop
Shenzhen Airlines Logo
19:30 - 20:00
BKK
-
LHR
30h 30m1 stop
$1,028Shenzhen Airlines
Wed, 18 Mar - Tue, 7 Apr
Shenzhen Airlines Logo
22:05 - 11:10
LHR
-
BKK
31h 05m1 stop
Shenzhen Airlines Logo
12:10 - 19:50
BKK
-
LHR
37h 40m1 stop
$1,052Shenzhen Airlines
Fri, 24 Apr - Fri, 8 May
Shenzhen Airlines Logo
22:05 - 02:15
LHR
-
BKK
22h 10m1 stop
Shenzhen Airlines Logo
03:15 - 20:00
BKK
-
LHR
22h 45m1 stop
$1,053Shenzhen Airlines
Fri, 10 Apr - Thu, 7 May
Air India Logo
21:45 - 20:25
LHR
-
BKK
16h 40m1 stop
Air India Logo
22:25 - 12:05
BKK
-
LHR
19h 40m1 stop
$1,077Air India
Tue, 26 May - Wed, 27 May

Shenzhen Airlines flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport

Our best Shenzhen Airlines deals on London Heathrow Airport to Bangkok Suvarnabhumi Airport flight tickets
Shenzhen Airlines
9 Jan
LHR21:10London Heathrow
38h 20m
1 stop
BKK18:30Bangkok Suvarnabhumi
18 Jan
BKK12:10Bangkok Suvarnabhumi
38h 00m
1 stop
LHR19:10London Heathrow
$897
Find similar
Shenzhen Airlines
6 Feb
LHR21:10London Heathrow
38h 20m
1 stop
BKK18:30Bangkok Suvarnabhumi
10 Feb
BKK03:15Bangkok Suvarnabhumi
22h 55m
1 stop
LHR19:10London Heathrow
$972
Find similar
Shenzhen Airlines
21 Mar
LHR21:10London Heathrow
31h 00m
1 stop
BKK11:10Bangkok Suvarnabhumi
24 Mar
BKK03:15Bangkok Suvarnabhumi
22h 55m
1 stop
LHR19:10London Heathrow
$992
Find similar

British Airways flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport

Our best British Airways deals on London Heathrow Airport to Bangkok Suvarnabhumi Airport flight tickets
British Airways
1 Feb
LHR17:55London Heathrow
17h 20m
1 stop
BKK18:15Bangkok Suvarnabhumi
3 Apr
BKK17:15Bangkok Suvarnabhumi
18h 10m
1 stop
LHR05:25London Heathrow
$1,094
Find similar
British Airways
2 Mar
LHR17:55London Heathrow
17h 20m
1 stop
BKK18:15Bangkok Suvarnabhumi
18 Mar
BKK18:40Bangkok Suvarnabhumi
17h 45m
1 stop
LHR05:25London Heathrow
$1,095
Find similar
British Airways
21 Apr
LHR21:30London Heathrow
19h 35m
1 stop
BKK23:05Bangkok Suvarnabhumi
6 May
BKK17:15Bangkok Suvarnabhumi
18h 10m
1 stop
LHR05:25London Heathrow
$1,118
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport 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, momondo users made 78,305 searches. Data last updated 16 December 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 9/1

21:10-18:30

1 stop38h 20m

Bangkok Suvarnabhumi

Sun 18/1

12:10-19:10

1 stop38h 00m

$897

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 1/6

22:40-18:10

1 stop37h 30m

Bangkok Suvarnabhumi

Sun 14/6

01:30-20:25

1 stop24h 55m

$898

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 19/2

20:25-00:10

1 stop20h 45m

Bangkok Suvarnabhumi

Thu 5/3

19:30-17:50

1 stop29h 20m

$913

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 6/2

21:10-18:30

1 stop38h 20m

Bangkok Suvarnabhumi

Sat 21/3

03:15-19:10

1 stop22h 55m

$972

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 21/3

21:10-11:10

1 stop31h 00m

Bangkok Suvarnabhumi

Tue 24/3

19:30-19:10

1 stop30h 40m

$992

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 19/2

20:30-19:35

1 stop16h 05m

Bangkok Suvarnabhumi

Thu 5/3

20:50-11:05

1 stop21h 15m

$995

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 18/3

21:10-11:10

1 stop31h 00m

Bangkok Suvarnabhumi

Tue 7/4

19:30-20:00

1 stop30h 30m

$1,028

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 24/4

22:05-11:10

1 stop31h 05m

Bangkok Suvarnabhumi

Fri 8/5

12:10-19:50

1 stop37h 40m

$1,052

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 10/4

22:05-02:15

1 stop22h 10m

Bangkok Suvarnabhumi

Thu 7/5

03:15-20:00

1 stop22h 45m

$1,053

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 26/5

21:45-20:25

1 stop16h 40m

Bangkok Suvarnabhumi

Wed 27/5

22:25-12:05

1 stop19h 40m

$1,077

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 September, then departing from London Heathrow Airport during the month May is also very affordable. Most momondo users find prices during this month for around $1,241.

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 $1,223. 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 $3,011.

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 morning. momondo users have found flights departing from London Heathrow Airport to Bangkok Suvarnabhumi Airport in the morning for as low as $1,969. 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 $2,081 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 $1,415 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 $1,318 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 49% 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 December 2025, prices for London Heathrow Airport to Bangkok Suvarnabhumi Airport flights are approximately 12% 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

$1,617

Fastest flight time

11h 40m

Direct flights

Every day
The best one-way flight to Bangkok Suvarnabhumi Airport from London Heathrow Airport in the past 72 hours is $1,617. The best return flight deal from London Heathrow Airport to Bangkok Suvarnabhumi Airport found on momondo in the last 72 hours is $1,821.
The fastest flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport takes 11h 40m
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. 11h 40m 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
Ko Samet
Ayutthaya
Cha-am
Chonburi
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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