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Cheap flights from London Heathrow Airport to Bangkok from £296

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 11/1. 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

Enter your travel dates to find the best prices.
China Southern Logo
22:00 - 10:10
LHR
-
BKK
29h 10m1 stop
China Southern Logo
03:00 - 18:05
BKK
-
LHR
21h 05m2 stops
£447China Southern
Thu, 29 Jan - Wed, 1 Apr
Air China Logo
22:10 - 16:40
LHR
-
BKK
35h 30m1 stop
Air China Logo
23:50 - 17:50
BKK
-
LHR
25h 00m1 stop
£447Air China
Tue, 6 Jan - Sat, 31 Jan
Air China Logo
20:25 - 18:05
LHR
-
BKK
38h 40m1 stop
Air China Logo
23:50 - 17:50
BKK
-
LHR
25h 00m1 stop
£448Air China
Thu, 15 Jan - Sat, 31 Jan
Hainan Airlines Logo
21:00 - 10:05
LHR
-
BKK
30h 05m2 stops
Hainan Airlines Logo
19:10 - 17:35
BKK
-
LHR
29h 25m2 stops
£449Hainan Airlines
Fri, 23 Jan - Thu, 5 Feb
China Southern Logo
22:00 - 01:05
LHR
-
BKK
20h 05m1 stop
China Southern Logo
00:30 - 14:00
BKK
-
LHR
44h 30m2 stops
£450China Southern
Sat, 24 Jan - Mon, 2 Feb
China Southern Logo
22:00 - 11:25
LHR
-
BKK
30h 25m1 stop
China Southern Logo
00:30 - 18:35
BKK
-
LHR
25h 05m2 stops
£450China Southern
Sat, 14 Mar - Fri, 20 Mar
China Southern Logo
17:15 - 01:40
LHR
-
BKK
25h 25m2 stops
China Southern Logo
02:10 - 18:35
BKK
-
LHR
23h 25m1 stop
£451China Southern
Wed, 14 Jan - Mon, 26 Jan
Air China Logo
22:10 - 16:40
LHR
-
BKK
35h 30m1 stop
Air China Logo
01:30 - 17:50
BKK
-
LHR
23h 20m1 stop
£452Air China
Tue, 6 Jan - Mon, 9 Feb
China Southern Logo
19:35 - 22:30
LHR
-
BKK
19h 55m1 stop
China Southern Logo
19:15 - 17:55
BKK
-
LHR
29h 40m2 stops
£453China Southern
Mon, 26 Jan - Thu, 5 Feb
China Southern Logo
22:00 - 01:05
LHR
-
BKK
20h 05m1 stop
China Southern Logo
02:10 - 17:55
BKK
-
LHR
22h 45m2 stops
£453China Southern
Thu, 22 Jan - Wed, 28 Jan

China Southern flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport

Our best China Southern deals on London Heathrow Airport to Bangkok Suvarnabhumi Airport flight tickets
China Southern
29 Jan
LHR22:00London Heathrow
29h 10m
1 stop
BKK10:10Bangkok Suvarnabhumi
1 Apr
BKK03:00Bangkok Suvarnabhumi
21h 05m
2 stops
LHR18:05London Heathrow
£447
Find similar
China Southern
24 Jan
LHR22:00London Heathrow
20h 05m
1 stop
BKK01:05Bangkok Suvarnabhumi
2 Feb
BKK00:30Bangkok Suvarnabhumi
44h 30m
2 stops
LHR14:00London Heathrow
£450
Find similar
China Southern
14 Mar
LHR22:00London Heathrow
30h 25m
1 stop
BKK11:25Bangkok Suvarnabhumi
20 Mar
BKK00:30Bangkok Suvarnabhumi
25h 05m
2 stops
LHR18:35London Heathrow
£450
Find similar

Air China flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport

Our best Air China deals on London Heathrow Airport to Bangkok Suvarnabhumi Airport flight tickets
Air China
6 Jan
LHR22:10London Heathrow
35h 30m
1 stop
BKK16:40Bangkok Suvarnabhumi
31 Jan
BKK23:50Bangkok Suvarnabhumi
25h 00m
1 stop
LHR17:50London Heathrow
£447
Find similar
Air China
15 Jan
LHR20:25London Heathrow
38h 40m
1 stop
BKK18:05Bangkok Suvarnabhumi
31 Jan
BKK23:50Bangkok Suvarnabhumi
25h 00m
1 stop
LHR17:50London Heathrow
£448
Find similar
Air China
6 Jan
LHR22:10London Heathrow
35h 30m
1 stop
BKK16:40Bangkok Suvarnabhumi
9 Feb
BKK01:30Bangkok Suvarnabhumi
23h 20m
1 stop
LHR17:50London Heathrow
£452
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 279,928 searches. Data last updated 12 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

Thu 29/1

22:00-10:10

1 stop29h 10m

Bangkok Suvarnabhumi

Wed 1/4

03:00-18:05

2 stops21h 05m

£447

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 6/1

22:10-16:40

1 stop35h 30m

Bangkok Suvarnabhumi

Sat 31/1

23:50-17:50

1 stop25h 00m

£447

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 15/1

20:25-18:05

1 stop38h 40m

Bangkok Suvarnabhumi

Sat 31/1

23:50-17:50

1 stop25h 00m

£448

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 23/1

21:00-10:05

2 stops30h 05m

Bangkok Suvarnabhumi

Thu 5/2

19:10-17:35

2 stops29h 25m

£449

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 24/1

22:00-01:05

1 stop20h 05m

Bangkok Suvarnabhumi

Mon 2/2

00:30-14:00

2 stops44h 30m

£450

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 14/3

22:00-11:25

1 stop30h 25m

Bangkok Suvarnabhumi

Fri 20/3

00:30-18:35

2 stops25h 05m

£450

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 14/1

17:15-01:40

2 stops25h 25m

Bangkok Suvarnabhumi

Mon 26/1

02:10-18:35

1 stop23h 25m

£451

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 6/1

22:10-16:40

1 stop35h 30m

Bangkok Suvarnabhumi

Mon 9/2

01:30-17:50

1 stop23h 20m

£452

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 26/1

19:35-22:30

1 stop19h 55m

Bangkok Suvarnabhumi

Thu 5/2

19:15-17:55

2 stops29h 40m

£453

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 22/1

22:00-01:05

1 stop20h 05m

Bangkok Suvarnabhumi

Wed 28/1

02:10-17:55

2 stops22h 45m

£453

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 don’t want to visit Bangkok Suvarnabhumi Airport in September, then you should wait until May to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of £616.

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

According to our data, Sunday is the cheapest day to fly to Bangkok Suvarnabhumi Airport from London Heathrow Airport. The lowest ticket price found for a Sunday departure recently was £697. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from London Heathrow Airport to Bangkok Suvarnabhumi Airport for around £754.

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 £567. 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 £738 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 £702 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 £653 on momondo.

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

There are 4 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 1% 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

£491

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 £491. The best return flight deal from London Heathrow Airport to Bangkok Suvarnabhumi Airport found on momondo in the last 72 hours is £704.
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?

    Bangkok Suvarnabhumi is 5946.7 mi away from London Heathrow. Flights usually cover this in 11h 40m, depending on flying conditions and air traffic around both airports.

  • 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 are updated daily.

  • How many operators does momondo search for flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport?

  • 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 offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify 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 you'll need for your trip to Bangkok Suvarnabhumi Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Bangkok Suvarnabhumi Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

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

Best airlines flying from London Heathrow Airport to Bangkok Suvarnabhumi Airport

Compare and see reviews for airlines that fly from London Heathrow Airport to Bangkok Suvarnabhumi Airport with momondo
Airline
Rating
Free Cancellation
Price
SAUDIAPriceFrom £339Free CancellationRating
7.4
647 reviews
Search SAUDIA flights
Hainan AirlinesPriceFrom £379Free CancellationRating
8.3
58 reviews
Search Hainan Airlines flights
Gulf AirPriceFrom £446Free CancellationRating
7.2
226 reviews
Search Gulf Air flights
Norse Atlantic UKPriceFrom £457Free CancellationRating
7.2
51 reviews
Search Norse Atlantic UK flights
Royal Brunei AirlinesPriceFrom £470Free CancellationRating
0.0
0 reviews
Search Royal Brunei Airlines flights
LufthansaPriceFrom £473Free CancellationRating
6.8
7,626 reviews
Search Lufthansa flights
SWISSPriceFrom £478Free CancellationRating
7.5
1,810 reviews
Search SWISS flights
Hahn AirPriceFrom £481Free CancellationRating
0.0
Search Hahn Air flights
KLMPriceFrom £492Free CancellationRating
7.7
1,432 reviews
Search KLM flights
Air FrancePriceFrom £495Free CancellationRating
7.4
1,504 reviews
Search Air France flights

Travelling to a place near Bangkok?

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

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Bangkok from London.

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

Yes. momondo allows you to filter the results for London to Bangkok flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Bangkok from London.

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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