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
29/03/26
2 Stopovers (BOM, KWI)
6E1052, KU0302, KU0101
32h 25min
Return
-
IndiGo Airlines, Kuwait Airways
£253
found 3 days ago
Bangkok
London Heathrow
Outbound
04/11/25
1 Stopover (ARN)
N00192, BA0781
33h 20min
Return
03/12/25
2 Stopovers (MAD, DOH)
IB0726, IB0391, IB6250
27h 35min
Norse Atlantic Airways, British Airways ?
£502
Bangkok
London Heathrow
Outbound
04/11/25
1 Stopover (RUH)
SV0847, SV0113
32h 50min
Return
03/12/25
1 Stopover (RUH)
SV0110, SV0846
20h 40min
Saudi Arabian Airlines
£522
Best option
Bangkok
London Heathrow
Outbound
19/07/26
1 Stopover (VIE)
OS0008, OS0331
14h 40min
Return
26/08/26
1 Stopover (VIE)
OS0338, OS0007
13h 20min
Austrian Airlines ?
£643
Bangkok
London Heathrow
Outbound
04/11/25
1 Stopover (PVG)
MU8610, MU0551
28h 35min
Return
03/12/25
1 Stopover (PVG)
MU0552, MU0541
32h 20min
China Eastern Airlines
£532
Bangkok
London Heathrow
Outbound
19/02/26
1 Stopover (HAK)
HU0722, HU7963
29h 25min
Return
22/02/26
1 Stopover (VIE)
OS0332, OS0007
23h 25min
Hainan Airlines
£541
Bangkok
London Heathrow
Outbound
19/02/26
1 Stopover (HAK)
HU7940, HU7963
37h 25min
Return
22/02/26
1 Stopover (VIE)
OS0338, OS0007
13h 05min
Hainan Airlines
£556
Bangkok
London Heathrow
Outbound
05/12/25
1 Stopover (JED)
SV0845, SV0119
27h 55min
Return
11/12/25
1 Stopover (JED)
SV0118, SV0848
21h 25min
Saudi Arabian Airlines
£574
Bangkok
London Heathrow
Outbound
19/02/26
1 Stopover (KUL)
MH0781, MH0004
26h 20min
Return
22/02/26
1 Stopover (KUL)
MH0001, MH0796
18h 45min
Malaysia Airlines ?
£594
Bangkok
London Heathrow
Outbound
04/11/25
1 Stopover (RUH)
SV0847, SV0111
23h 10min
Return
03/12/25
1 Stopover (RUH)
SV0110, SV0846
20h 40min
Saudi Arabian Airlines
£597
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 £ 252,10
Outbound and return from £ 501,61
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