Flights from Bangkok to London Heathrow

Our cheapest offers for flights from Bangkok to London Heathrow

Here you can compare cheap flights from Bangkok (BKK) to London Heathrow (LHR) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to London Heathrow. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Bangkok
London Heathrow
Outbound
15/01/26
1 Stopover (HAK)
HU0722, HU7963
29h 25min
Return
-
Hainan Airlines
£237
Bangkok
London Heathrow
Outbound
22/02/26
2 Stopovers (SIN, ATH)
TR0607, TR0050, A30608
40h 25min
Return
07/03/26
1 Stopover (ARN)
BA0782, N00191
34h 40min
Scoot, Aegean Airlines ?
£497
Bangkok
London Heathrow
Outbound
22/02/26
1 Stopover (HAK)
HU7918, HU7911
23h 20min
Return
07/03/26
1 Stopover (BOM)
AI0130, AI2337
16h 05min
Hainan Airlines
£538
Best option
Bangkok
London Heathrow
Outbound
05/06/26
1 Stopover (AUH)
EY0401, EY0063
15h 50min
Return
08/06/26
1 Stopover (AUH)
EY0064, EY0404
15h 05min
Etihad Airways
£556
Bangkok
London Heathrow
Outbound
22/02/26
1 Stopover (HAK)
HU7918, HU7911
23h 20min
Return
07/03/26
1 Stopover (VIE)
OS0338, OS0005
33h 55min
Hainan Airlines
£537
Bangkok
London Heathrow
Outbound
20/03/26
1 Stopover (KWI)
KU0414, KU0101
17h 45min
Return
17/04/26
1 Stopover (KWI)
KU0104, KU0411
16h 20min
Kuwait Airways
£549
Bangkok
London Heathrow
Outbound
01/05/26
1 Stopover (KUL)
MH0781, MH0004
26h 55min
Return
31/05/26
1 Stopover (KUL)
MH0003, MH0788
20h 25min
Malaysia Airlines
£551
Bangkok
London Heathrow
Outbound
09/12/25
1 Stopover (PVG)
MU8654, MU0551
19h 25min
Return
02/01/26
2 Stopovers (BRU, PEK)
BA0386, HU0492, HU0429
24h 35min
China Eastern Airlines
£555
Bangkok
London Heathrow
Outbound
05/06/26
1 Stopover (AUH)
EY0401, EY0065
18h 20min
Return
08/06/26
1 Stopover (AUH)
EY0068, EY0400
20h 10min
Etihad Airways
£563
Bangkok
London Heathrow
Outbound
20/03/26
1 Stopover (KWI)
KU0414, KU0101
17h 45min
Return
17/04/26
1 Stopover (KWI)
KU0104, KU0411
16h 20min
Kuwait Airways
£567
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from Bangkok to London Heathrow

Favourite airline: Air China
The most popular airline for flights from Bangkok to London Heathrow is Air China.
Air China
40 %
China Eastern
27 %
Shenzhen Airlines
7 %
Favourite connection: via Beijing International
Stopover flights on this route are especially popular via Beijing International, making up 50 % of bookings.
Route
bookings
1 stopover Beijing International
23h 20min, from £704
50 %
1 stopover Shanghai Pudong
39h 05min, from £582
40 %
1 stopover Shenzhen
23h 00min, from £673
10 %

Important flight information

Flight information: Bangkok - London Heathrow

Cheapest outbound flight from £236.24
Outbound and return from £496.65
Flight duration min. 13:05 / max. 13:15
Return flight duration min. 11:25/ max. 11:30
Distance 9588 km
Flights per week 32
Departure airport Airport Bangkok Suvarnabhumi (BKK)
Departure country Flights from Thailand
Arrival airport Airport London Heathrow (LHR)
Destination country Flights to United Kingdom
Alternative routes to United Kingdom
Popular destinations for onward travel
Flight destinations with a similar price