Latest deals
Insights
FAQs
Price Alerts

Cheap flights from London Heathrow Airport to Bangkok from $526

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.
1 adult

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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 - 19:50BKK-LHR
22h 35m1 stop
$743Shenzhen Airlines
Find Deal
Sun, 14 Sep - Sun, 19 Oct
Shenzhen Airlines Logo
22:05 - 02:15LHR-BKK
22h 10m1 stop
Shenzhen Airlines Logo
03:15 - 19:50BKK-LHR
22h 35m1 stop
$745Shenzhen Airlines
Find Deal
Fri, 19 Sep - Sun, 28 Sep
Shenzhen Airlines Logo
22:05 - 02:15LHR-BKK
22h 10m1 stop
Shenzhen Airlines Logo
19:30 - 19:50BKK-LHR
30h 20m1 stop
$748Shenzhen Airlines
Find Deal
Sat, 13 Sep - Sun, 28 Sep
Shenzhen Airlines Logo
22:05 - 02:15LHR-BKK
22h 10m1 stop
Shenzhen Airlines Logo
03:15 - 20:00BKK-LHR
22h 45m1 stop
$833Shenzhen Airlines
Find Deal
Mon, 15 Sep - Tue, 14 Oct
China Southern Logo
22:00 - 10:10LHR-BKK
29h 10m1 stop
China Southern Logo
02:10 - 18:15BKK-LHR
23h 05m1 stop
$888China Southern
Find Deal
Tue, 4 Nov - Wed, 12 Nov
China Southern Logo
22:00 - 10:10LHR-BKK
29h 10m1 stop
China Southern Logo
15:45 - 18:15BKK-LHR
33h 30m1 stop
$891China Southern
Find Deal
Tue, 4 Nov - Fri, 14 Nov
China Eastern Logo
21:00 - 14:55LHR-BKK
34h 55m2 stops
China Eastern Logo
13:35 - 17:30BKK-LHR
34h 55m1 stop
$975China Eastern
Find Deal
Thu, 20 Nov - Fri, 12 Dec
Air India Logo
12:30 - 19:35LHR-BKK
25h 05m1 stop
Air India Logo
20:50 - 10:15BKK-LHR
19h 25m1 stop
$1,034Air India
Find Deal
Sat, 13 Sep - Sat, 20 Sep
SWISS Logo
06:00 - 09:45LHR-BKK
21h 45m1 stop
SWISS Logo
12:35 - 07:55BKK-LHR
25h 20m1 stop
$1,055SWISS
Find Deal
Sun, 24 Aug - Wed, 17 Sep
SWISS Logo
20:05 - 09:45LHR-BKK
31h 40m1 stop
SWISS Logo
12:35 - 07:55BKK-LHR
25h 20m1 stop
$1,088SWISS
Find Deal
Mon, 25 Aug - Wed, 17 Sep

Austrian Airlines flights from London Heathrow Airport to Bangkok

Our best Austrian Airlines deals on London Heathrow Airport to Bangkok flight tickets
Austrian Airlines
21 Aug
LHR06:00London Heathrow
26h 50m
1 stop
BKK14:50Bangkok Suvarnabhumi
15 Sept
BKK23:40Bangkok Suvarnabhumi
25h 00m
1 stop
LHR18:40London Heathrow
$1,057
Find similar
Austrian Airlines
20 Aug
LHR15:05London Heathrow
17h 45m
1 stop
BKK14:50Bangkok Suvarnabhumi
14 Sept
BKK23:40Bangkok Suvarnabhumi
14h 40m
1 stop
LHR08:20London Heathrow
$1,097
Find similar
Austrian Airlines
25 Aug
LHR06:00London Heathrow
26h 50m
1 stop
BKK14:50Bangkok Suvarnabhumi
10 Sept
BKK23:40Bangkok Suvarnabhumi
15h 05m
1 stop
LHR08:45London Heathrow
$1,102
Find similar

Oman Air flights from London Heathrow Airport to Bangkok

Our best Oman Air deals on London Heathrow Airport to Bangkok flight tickets
Oman Air
31 Aug
LHR20:50London Heathrow
14h 55m
1 stop
BKK17:45Bangkok Suvarnabhumi
21 Sept
BKK19:10Bangkok Suvarnabhumi
30h 00m
1 stop
LHR19:10London Heathrow
$1,058
Find similar
Oman Air
18 Jan
LHR20:05London Heathrow
27h 40m
1 stop
BKK06:45Bangkok Suvarnabhumi
17 Feb
BKK09:00Bangkok Suvarnabhumi
16h 25m
1 stop
LHR18:25London Heathrow
$1,060
Find similar
Oman Air
11 Sept
LHR20:50London Heathrow
14h 55m
1 stop
BKK17:45Bangkok Suvarnabhumi
22 Sept
BKK09:00Bangkok Suvarnabhumi
16h 10m
1 stop
LHR19:10London Heathrow
$1,062
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 1 August 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

Sun 14/9

22:05-02:15

1 stop22h 10m

Bangkok Suvarnabhumi

Sun 19/10

03:15-19:50

1 stop22h 35m

$743

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 19/9

22:05-02:15

1 stop22h 10m

Bangkok Suvarnabhumi

Sun 28/9

03:15-19:50

1 stop22h 35m

$745

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 13/9

22:05-02:15

1 stop22h 10m

Bangkok Suvarnabhumi

Sun 28/9

19:30-19:50

1 stop30h 20m

$748

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 15/9

22:05-02:15

1 stop22h 10m

Bangkok Suvarnabhumi

Tue 14/10

03:15-20:00

1 stop22h 45m

$833

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 4/11

22:00-10:10

1 stop29h 10m

Bangkok Suvarnabhumi

Wed 12/11

02:10-18:15

1 stop23h 05m

$888

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 4/11

22:00-10:10

1 stop29h 10m

Bangkok Suvarnabhumi

Fri 14/11

15:45-18:15

1 stop33h 30m

$891

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 20/11

21:00-14:55

2 stops34h 55m

Bangkok Suvarnabhumi

Fri 12/12

13:35-17:30

1 stop34h 55m

$975

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 13/9

12:30-19:35

1 stop25h 05m

Bangkok Suvarnabhumi

Sat 20/9

20:50-10:15

1 stop19h 25m

$1,034

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 24/8

06:00-09:45

1 stop21h 45m

Bangkok Suvarnabhumi

Wed 17/9

12:35-07:55

1 stop25h 20m

$1,055

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 25/8

20:05-09:45

1 stop31h 40m

Bangkok Suvarnabhumi

Wed 17/9

12:35-07:55

1 stop25h 20m

$1,088

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 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 $1,282. The month of June is another great option to travel to Bangkok, with average flight prices from London Heathrow Airport averaging around $1,291.

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 $1,456. 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 $2,727. 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 $2,103 when looking at flights departing in the morning. Flights to Bangkok are more costly in the evening, with an average ticket price of $2,278. 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 $1,466 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 $1,353 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

Best price found

$526

Fastest flight time

14h 20m

Direct flights

Every day

Airports in Bangkok

1 airport
The best one-way flight to Bangkok from London Heathrow Airport in the past 72 hours is $526. The best return flight deal from London Heathrow Airport to Bangkok found on momondo in the last 72 hours is $743.
The fastest flight from London Heathrow Airport to Bangkok takes 14h 20m
Direct flights go from London Heathrow Airport to Bangkok every day.
There is 1 airport near Bangkok: Bangkok Suvarnabhumi (BKK)
Search flight deals

  • How far is London Heathrow to Bangkok by plane?

    The distance between London Heathrow and Bangkok is about 9549.9 km. 14h 20m 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.

An easier way to manage your Bangkok trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 6/8
Wed 13/8
By creating a price alert you accept our terms of use and privacy policy.

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