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Cheap flights from London Heathrow Airport to Bangkok from $616

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 15/1. 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

Logo
19:25 - 15:30LHR-BKK
13h 05m1 stop
Logo
23:30 - 10:25BKK-LHR
17h 55m1 stop
$896
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Wed, 4 Feb - Thu, 12 Feb
Logo
16:40 - 14:50LHR-BKK
15h 10m1 stop
Logo
23:40 - 08:20BKK-LHR
14h 40m1 stop
$900
Find Deal
Wed, 25 Feb - Wed, 13 May
Austrian Airlines Logo
14:50 - 15:30LHR-BKK
17h 40m1 stop
Austrian Airlines Logo
23:40 - 08:20BKK-LHR
14h 40m1 stop
$902Austrian Airlines
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Tue, 24 Feb - Wed, 13 May
Shenzhen Airlines Logo
21:10 - 18:30LHR-BKK
38h 20m1 stop
Shenzhen Airlines Logo
12:10 - 19:10BKK-LHR
38h 00m1 stop
$908Shenzhen Airlines
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Fri, 7 Nov - Tue, 2 Dec
Shenzhen Airlines Logo
21:10 - 02:15LHR-BKK
22h 05m1 stop
Shenzhen Airlines Logo
03:15 - 19:10BKK-LHR
22h 55m1 stop
$909Shenzhen Airlines
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Mon, 3 Nov - Tue, 2 Dec
Shenzhen Airlines Logo
21:10 - 11:10LHR-BKK
31h 00m1 stop
Shenzhen Airlines Logo
03:15 - 19:10BKK-LHR
22h 55m1 stop
$911Shenzhen Airlines
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Sat, 29 Nov - Fri, 19 Dec
Austrian Airlines Logo
14:50 - 15:30LHR-BKK
17h 40m1 stop
Austrian Airlines Logo
23:50 - 14:05BKK-LHR
21h 15m1 stop
$914Austrian Airlines
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Thu, 5 Mar - Fri, 20 Mar
Air India Logo
20:30 - 13:35LHR-BKK
34h 05m1 stop
Air India Logo
20:50 - 11:05BKK-LHR
21h 15m1 stop
$921Air India
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Mon, 24 Nov - Sat, 29 Nov
Air China Logo
17:40 - 18:05LHR-BKK
17h 25m1 stop
Air China Logo
13:50 - 20:15BKK-LHR
37h 25m1 stop
$947Air China
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Mon, 27 Oct - Mon, 3 Nov
Air India Logo
20:30 - 13:35LHR-BKK
34h 05m1 stop
Air India Logo
20:50 - 11:05BKK-LHR
21h 15m1 stop
$949Air India
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Mon, 24 Nov - Sat, 29 Nov

Austrian Airlines flights from London Heathrow Airport to Bangkok

Our best Austrian Airlines deals on London Heathrow Airport to Bangkok flight tickets
Austrian Airlines
24 Feb
LHR14:50London Heathrow
17h 40m
1 stop
BKK15:30Bangkok Suvarnabhumi
13 May
BKK23:40Bangkok Suvarnabhumi
14h 40m
1 stop
LHR08:20London Heathrow
$902
Find similar
Austrian Airlines
5 Mar
LHR14:50London Heathrow
17h 40m
1 stop
BKK15:30Bangkok Suvarnabhumi
20 Mar
BKK23:50Bangkok Suvarnabhumi
21h 15m
1 stop
LHR14:05London Heathrow
$914
Find similar
Austrian Airlines
29 Jan
LHR14:50London Heathrow
17h 40m
1 stop
BKK15:30Bangkok Suvarnabhumi
14 May
BKK23:40Bangkok Suvarnabhumi
20h 40m
1 stop
LHR14:20London Heathrow
$917
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Etihad Airways flights from London Heathrow Airport to Bangkok

Our best Etihad Airways deals on London Heathrow Airport to Bangkok flight tickets
Etihad Airways
16 Sept
LHR14:45London Heathrow
27h 10m
1 stop
BKK23:55Bangkok Suvarnabhumi
24 Sept
BKK02:55Bangkok Suvarnabhumi
21h 50m
1 stop
LHR18:45London Heathrow
$961
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Etihad Airways
6 Nov
LHR13:55London Heathrow
26h 25m
1 stop
BKK23:20Bangkok Suvarnabhumi
1 Dec
BKK02:55Bangkok Suvarnabhumi
18h 35m
1 stop
LHR14:30London Heathrow
$1,019
Find similar
Etihad Airways
29 Sept
LHR14:45London Heathrow
27h 10m
1 stop
BKK23:55Bangkok Suvarnabhumi
13 Nov
BKK20:50Bangkok Suvarnabhumi
24h 40m
1 stop
LHR14:30London Heathrow
$1,021
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport to Bangkok 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 15 September 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Bangkok that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 4/2

19:25-15:30

1 stop13h 05m

Bangkok Suvarnabhumi

Thu 12/2

23:30-10:25

1 stop17h 55m

$896

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 25/2

16:40-14:50

1 stop15h 10m

Bangkok Suvarnabhumi

Wed 13/5

23:40-08:20

1 stop14h 40m

$900

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 24/2

14:50-15:30

1 stop17h 40m

Bangkok Suvarnabhumi

Wed 13/5

23:40-08:20

1 stop14h 40m

$902

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 7/11

21:10-18:30

1 stop38h 20m

Bangkok Suvarnabhumi

Tue 2/12

12:10-19:10

1 stop38h 00m

$908

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 3/11

21:10-02:15

1 stop22h 05m

Bangkok Suvarnabhumi

Tue 2/12

03:15-19:10

1 stop22h 55m

$909

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 29/11

21:10-11:10

1 stop31h 00m

Bangkok Suvarnabhumi

Fri 19/12

03:15-19:10

1 stop22h 55m

$911

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 5/3

14:50-15:30

1 stop17h 40m

Bangkok Suvarnabhumi

Fri 20/3

23:50-14:05

1 stop21h 15m

$914

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 24/11

20:30-13:35

1 stop34h 05m

Bangkok Suvarnabhumi

Sat 29/11

20:50-11:05

1 stop21h 15m

$921

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 27/10

17:40-18:05

1 stop17h 25m

Bangkok Suvarnabhumi

Mon 3/11

13:50-20:15

1 stop37h 25m

$947

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 24/11

20:30-13:35

1 stop34h 05m

Bangkok Suvarnabhumi

Sat 29/11

20:50-11:05

1 stop21h 15m

$949

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

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 typical price of a round-trip flight between London Heathrow Airport and Bangkok?

What is the cheapest month to fly to Bangkok?

The month of May is, on average, the cheapest month to fly to Bangkok from London Heathrow Airport, with most prices found around $1,242. The month of June is another great option to travel to Bangkok, with average flight prices from London Heathrow Airport averaging around $1,251.

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

The cheapest day to depart on your flight to Bangkok is on a Tuesday when prices can be found for as low as $1,222. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $2,641. These prices are subject to change though, so be sure to set up a Price Alert for flights to Bangkok.

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

Flying to Bangkok from London Heathrow Airport in the morning is the least expensive time of day to depart. momondo users have found prices as low as $1,931 when looking at flights departing in the morning. Flights to Bangkok are more costly in the evening, with an average ticket price of $2,124. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest London Heathrow to Bangkok flight route?

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

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

You are more likely to see cheaper flights to Bangkok from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Bangkok for around $1,421 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bangkok from London Heathrow Airport for as low as $1,308 on momondo.

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

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

Cheap London Heathrow Airport to Bangkok flight deals and tips

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

Fastest flight time

11h 25m

Direct flights

Every day

Airports in Bangkok

1 airport
The fastest flight from London Heathrow Airport to Bangkok takes 11h 25m
Direct flights go from London Heathrow Airport to Bangkok every day.
There is 1 airport near Bangkok: Bangkok Suvarnabhumi (BKK)
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  • How far is London Heathrow to Bangkok by plane?

    The distance between London Heathrow and Bangkok is about 9549.9 km. 13h 05m is a normal flight duration for this route.

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Bangkok.

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

    The travel and health documents you'll need for your trip to Bangkok 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 licence and a passport that is valid for six months after your intended arrival at Bangkok. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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?

All flight searches from London to Bangkok on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between London and Bangkok by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to Bangkok, momondo offers a useful price alert feature which will track prices for flights to Bangkok from London and alert you when they change.

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Find better results for your trip to Thailand

Fly into one of these airports located in Bangkok

Airports listed have a maximum distance of 24.8 km from Bangkok
Bangkok Suvarnabhumi Airport
Bangkok Don Mueang Intl Airport