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฿3,751+ Cheap flights from London Heathrow Airport

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
LHR — BKK
19 Feb — 26 Feb1
1 adult

What to know about flights from Heathrow

Discover essential information about flights departing from Heathrow, including flight schedules, destinations, airlines operating at the Heathrow airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 14 February 2025.

Cheapest airline

Air India

Good round-trip deal

฿18,003 or less

Good one-way deal

฿3,248 or less
On average, Air India currently has the cheapest one-way flight from London Heathrow (avg. price of ฿29,063).
Price to beat on a round-trip flight from London Heathrow.
Price to beat on a one-way flight from London Heathrow.

Find flights from Heathrow

Cheapest flights from Heathrow
Explore the most affordable flight options available from Heathrow. Find the lowest fares based on data from user searches, with prices last updated on 14 February 2025.

Wed 19/317:40LHR - BKK
1 stop17h 25mAir China
Tue 8/401:30BKK - LHR
1 stop25h 00mAir China
Deal found 14/2฿20,581
Mon 10/322:00LHR - BKK
1 stop20h 00mChina Southern
Sat 29/313:55BKK - LHR
2 stops34h 35mChina Southern
Deal found 13/2฿20,716
Mon 3/317:50LHR - BKK
1 stop21h 35mChina Eastern
Sun 9/319:05BKK - LHR
1 stop25h 50mChina Eastern
Deal found 13/2฿20,784
Tue 22/409:45LHR - BKK
1 stop15h 55mAir India
Tue 6/522:30BKK - LHR
1 stop19h 00mAir India
Deal found 14/2฿21,021
Fri 28/221:10LHR - BKK
1 stop31h 00mShenzhen Airlines
Sat 15/303:05BKK - LHR
1 stop23h 05mShenzhen Airlines
Deal found 13/2฿21,054
Wed 5/317:40LHR - HKT
1 stop20h 40mAir China
Wed 12/317:25HKT - LHR
2 stops31h 25mAir China
Deal found 14/2฿21,156
Tue 10/622:00LHR - HKT
2 stops35h 00mMultiple Airlines
Sun 15/620:50HKT - LHR
1 stop28h 20mMultiple Airlines
Deal found 14/2฿21,190
Mon 10/322:00LHR - HKT
1 stop34h 35mChina Southern
Mon 24/316:35HKT - LHR
1 stop32h 40mChina Southern
Deal found 13/2฿21,257
Sat 1/321:35LHR - BKK
1 stop36h 05mMultiple Airlines
Fri 30/503:15BKK - LHR
1 stop22h 35mMultiple Airlines
Deal found 14/2฿21,325
Sun 9/321:00LHR - CNX
1 stop34h 20mChina Eastern
Sun 16/315:35CNX - LHR
1 stop29h 20mChina Eastern
Deal found 14/2฿21,595
Wed 5/321:00LHR - HKT
1 stop37h 05mChina Eastern
Sun 16/300:20HKT - LHR
1 stop20h 35mChina Eastern
Deal found 13/2฿21,764
Mon 24/221:00LHR - DMK
1 stop30h 35mMultiple Airlines
Thu 6/308:35DMK - LHR
2 stops40h 50mMultiple Airlines
Deal found 13/2฿21,798