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Cheap flights from London to Bangkok from $633

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 to Bangkok departing on 20/1. 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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Cheap return flights

Austrian Airlines Logo
09:05 - 12:20LHR-BKK
20h 15m1 stop
Austrian Airlines Logo
23:40 - 14:20BKK-LHR
20h 40m1 stop
$1,014Austrian Airlines
Find Deal
Thu, 5 Feb - Wed, 29 Apr
Logo
17:40 - 10:15LGW-BKK
33h 35m1 stop
Logo
12:20 - 08:35BKK-LGW
27h 15m1 stop
$1,016
Find Deal
Wed, 12 Nov - Fri, 28 Nov
Norse Atlantic UK Logo
16:00 - 10:25LGW-BKK
11h 25mdirect
Norse Atlantic UK Logo
12:25 - 18:20BKK-LGW
12h 55mdirect
$1,022Norse Atlantic UK
Find Deal
Tue, 18 Nov - Thu, 4 Dec
Norse Atlantic UK Logo
16:00 - 10:25LGW-BKK
11h 25mdirect
Norse Atlantic UK Logo
12:30 - 18:30BKK-LGW
13h 00mdirect
$1,024Norse Atlantic UK
Find Deal
Tue, 4 Nov - Wed, 26 Nov
SAUDIA Logo
15:00 - 13:45LGW-BKK
16h 45m1 stop
SAUDIA Logo
01:50 - 13:00BKK-LGW
17h 10m1 stop
$1,025SAUDIA
Find Deal
Thu, 11 Sep - Fri, 19 Sep
SAUDIA Logo
15:00 - 13:45LGW-BKK
16h 45m1 stop
SAUDIA Logo
01:50 - 13:00BKK-LGW
17h 10m1 stop
$1,031SAUDIA
Find Deal
Sun, 14 Sep - Wed, 17 Sep
Shenzhen Airlines Logo
21:10 - 11:10LHR-BKK
31h 00m1 stop
Shenzhen Airlines Logo
19:30 - 19:10BKK-LHR
30h 40m1 stop
$1,058Shenzhen Airlines
Find Deal
Sun, 2 Nov - Tue, 18 Nov
Oman Air Logo
20:05 - 06:45LHR-BKK
27h 40m1 stop
Oman Air Logo
20:05 - 05:55BKK-LHR
16h 50m1 stop
$1,059Oman Air
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Tue, 3 Feb - Thu, 5 Mar
Shenzhen Airlines Logo
21:10 - 18:30LHR-BKK
38h 20m1 stop
Shenzhen Airlines Logo
19:30 - 19:10BKK-LHR
30h 40m1 stop
$1,064Shenzhen Airlines
Find Deal
Fri, 7 Nov - Fri, 21 Nov
Oman Air Logo
20:05 - 06:45LHR-BKK
27h 40m1 stop
Oman Air Logo
09:00 - 18:25BKK-LHR
16h 25m1 stop
$1,065Oman Air
Find Deal
Tue, 3 Feb - Tue, 17 Feb

Austrian Airlines flights from London to Bangkok

Our best Austrian Airlines deals on London to Bangkok flight tickets
Austrian Airlines
5 Feb
LHR09:05London Heathrow
20h 15m
1 stop
BKK12:20Bangkok Suvarnabhumi
29 Apr
BKK23:40Bangkok Suvarnabhumi
20h 40m
1 stop
LHR14:20London Heathrow
$1,014
Find similar
Austrian Airlines
4 Dec
LHR19:25London Heathrow
13h 05m
1 stop
BKK15:30Bangkok Suvarnabhumi
22 Jan
BKK14:00Bangkok Suvarnabhumi
14h 40m
1 stop
LHR21:40London Heathrow
$1,061
Find similar
Austrian Airlines
4 Dec
LHR19:25London Heathrow
13h 05m
1 stop
BKK15:30Bangkok Suvarnabhumi
16 Feb
BKK14:00Bangkok Suvarnabhumi
14h 40m
1 stop
LHR21:40London Heathrow
$1,082
Find similar

SAUDIA flights from London to Bangkok

Our best SAUDIA deals on London to Bangkok flight tickets
SAUDIA
11 Sept
LGW15:00London Gatwick
16h 45m
1 stop
BKK13:45Bangkok Suvarnabhumi
19 Sept
BKK01:50Bangkok Suvarnabhumi
17h 10m
1 stop
LGW13:00London Gatwick
$1,025
Find similar
SAUDIA
14 Sept
LGW15:00London Gatwick
16h 45m
1 stop
BKK13:45Bangkok Suvarnabhumi
17 Sept
BKK01:50Bangkok Suvarnabhumi
17h 10m
1 stop
LGW13:00London Gatwick
$1,031
Find similar
SAUDIA
2 Dec
LGW14:00London Gatwick
16h 40m
1 stop
BKK13:40Bangkok Suvarnabhumi
2 Feb
BKK01:15Bangkok Suvarnabhumi
17h 45m
1 stop
LGW12:00London Gatwick
$1,039
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London 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 25 August 2025.
Use the filters below to find and compare flights from London to Bangkok that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 5/2

09:05-12:20

1 stop20h 15m

Bangkok Suvarnabhumi

Wed 29/4

23:40-14:20

1 stop20h 40m

$1,014

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Wed 12/11

17:40-10:15

1 stop33h 35m

Bangkok Suvarnabhumi

Fri 28/11

12:20-08:35

1 stop27h 15m

$1,016

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Tue 18/11

16:00-10:25

Nonstop11h 25m

Bangkok Suvarnabhumi

Thu 4/12

12:25-18:20

Nonstop12h 55m

$1,022

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Tue 4/11

16:00-10:25

Nonstop11h 25m

Bangkok Suvarnabhumi

Wed 26/11

12:30-18:30

Nonstop13h 00m

$1,024

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Thu 11/9

15:00-13:45

1 stop16h 45m

Bangkok Suvarnabhumi

Fri 19/9

01:50-13:00

1 stop17h 10m

$1,025

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Sun 14/9

15:00-13:45

1 stop16h 45m

Bangkok Suvarnabhumi

Wed 17/9

01:50-13:00

1 stop17h 10m

$1,031

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 2/11

21:10-11:10

1 stop31h 00m

Bangkok Suvarnabhumi

Tue 18/11

19:30-19:10

1 stop30h 40m

$1,058

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 3/2

20:05-06:45

1 stop27h 40m

Bangkok Suvarnabhumi

Thu 5/3

20:05-05:55

1 stop16h 50m

$1,059

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 7/11

21:10-18:30

1 stop38h 20m

Bangkok Suvarnabhumi

Fri 21/11

19:30-19:10

1 stop30h 40m

$1,064

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 3/2

20:05-06:45

1 stop27h 40m

Bangkok Suvarnabhumi

Tue 17/2

09:00-18:25

1 stop16h 25m

$1,065

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 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 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, with most prices found around $836. The month of September is another great option to travel to Bangkok, with average flight prices from London averaging around $1,133.

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 $1,444. 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 $2,705. 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 in the morning is the least expensive time of day to depart. momondo users have found prices as low as $2,030 when looking at flights departing in the morning. Flights to Bangkok are more costly in the evening, with an average ticket price of $2,260. 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 to Bangkok flight route?

Fly from London Heathrow to Bangkok Suvarnabhumi for the best London - 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 when booking weeks ahead of your departure date. In general, you can expect to find flights to Bangkok for around $1,455 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 for as low as $1,345 on momondo.

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

There are 3 cabin classes available to choose from on London 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 to Bangkok flight deals and tips

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

Fastest flight time

11h 25m

Direct flights

Every day

Airports in Bangkok

1 airport
The fastest flight from London to Bangkok takes 11h 25m
Direct flights go from London to Bangkok every day.
There is 1 airport near Bangkok: Bangkok Suvarnabhumi (BKK)
Search flight deals

  • How far is London to Bangkok by plane?

    Bangkok is 9527.1 km away from London. Flights usually cover this in 11h 25m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from London to Bangkok refresh daily.

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

    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 stopovers. It is recommended that you verify with the airline you are booking with for travel from London to Bangkok.

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

    The necessary travel and health documents for your Bangkok trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking 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?

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?

momondo does allow users to show only those flights to Bangkok from London which offer a flexible booking policy as well as other useful filters and features.

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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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