Flight Routes from London Heathrow to Bangkok

Trip type

Our cheapest offers for flights from London Heathrow to Bangkok

Here you can compare cheap flights from London Heathrow (LHR) to Bangkok (BKK) 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 Bangkok. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
London Heathrow
Bangkok
Outbound
05/16/26
1 Stopover (SZX)
ZH0888, ZH0309
31h 05min
Return
05/29/26
1 Stopover (SZX)
ZH0306, ZH0887
22h 45min
Shenzhen Airlines
$623
Best option
London Heathrow
Bangkok
Outbound
12/28/26
direct
TG0911
11h 25min
Return
02/26/27
direct
TG0910
13h 35min
Thai Airways
$1,513
London Heathrow
Bangkok
Outbound
05/16/26
1 Stopover (SZX)
ZH0888, ZH0309
31h 05min
Return
05/29/26
1 Stopover (SZX)
ZH0306, ZH0887
22h 45min
Shenzhen Airlines
$627
London Heathrow
Bangkok
Outbound
05/16/26
1 Stopover (SZX)
ZH0888, ZH0305
22h 10min
Return
05/29/26
1 Stopover (SZX)
ZH0306, ZH0887
22h 45min
Shenzhen Airlines ?
$650
London Heathrow
Bangkok
Outbound
05/16/26
1 Stopover (BOM)
AI0130, AI2337
16h 15min
Return
05/29/26
1 Stopover (BOM)
AI2353, AI0129
25h 30min
Air India
$660
London Heathrow
Bangkok
Outbound
06/25/26
1 Stopover (DEL)
AI0112, AI2304
24h 25min
Return
06/30/26
1 Stopover (BOM)
AI2353, AI0129
25h 30min
Air India ?
$667
London Heathrow
Bangkok
Outbound
05/16/26
1 Stopover (BOM)
AI0130, AI2354
34h 30min
Return
05/29/26
1 Stopover (BOM)
AI2353, AI0129
25h 30min
Air India ?
$681
London Heathrow
Bangkok
Outbound
05/16/26
1 Stopover (BOM)
AI0130, AI2337
16h 15min
Return
05/29/26
1 Stopover (BOM)
AI2353, AI0129
25h 30min
Air India
$686
London Heathrow
Bangkok
Outbound
06/25/26
1 Stopover (DEL)
AI0112, AI2332
20h 55min
Return
06/30/26
1 Stopover (BOM)
AI2353, AI0131
34h 45min
Air India
$725
London Heathrow
Bangkok
Outbound
05/16/26
2 Stopovers (ATH, SIN)
A30603, TR0051, TR0626
45h 00min
Return
05/29/26
1 Stopover (BOM)
6E1052, 6E0001
15h 25min
Aegean Airlines, Scoot ?
$752
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from London Heathrow to Bangkok

Favorite airline: Cathay Pacific
45 % of travelers choose to book flights on this route with Cathay Pacific, Finnair and Oman Air.
Cathay Pacific
19 %
Finnair
16 %
Oman Air
10 %
Stopover flights are the cheapest connection
Compared to direct flights, flights with a stopover on this route are on average 176 % cheaper.
non stop flight
1 stop
2 stops
11h 25min
22h 10min
22h 40min
1.459 $
528 $
1.118 $
Favourite connection: via Hong Kong
When booking flights from London Heathrow to Bangkok 29 % of travelers prefer to fly via Hong Kong.
Route
bookings
1 stopover Hong Kong International Airport
18h 25min, from 951 $
29 %
1 stopover Helsinki-Vantaa
37h 05min, from 650 $
26 %
1 stopover Shenzhen
22h 10min, from 528 $
16 %

Important flight information

Flight information: London Heathrow - Bangkok

Roundtrip from 622,37 $
Flight duration min. 11:25 / max. 11:30
Return flight duration min. 13:05/ max. 13:15
Distance 9588 km
Flights per week 32
Departure airport Airport London Heathrow (LHR)
Departure country Flights from United Kingdom
Arrival airport Airport Bangkok International Airport (BKK)
Destination country Flights to Thailand
Alternative flights to Bangkok
Flight destinations with a similar price
Flight destinations with a similar price