AirHint found the following cheapest return flights from Bangkok (BKK) to London (LHR) in August 2026 (see full year).

Return flights

25 Aug - 01 Sep	Thai VietJet Air
09 Aug - 31 Aug	Thai AirAsia X
12 Aug - 05 Sep	Thai VietJet Air
16 Aug - 23 Aug	Kuwait Airways
14 Aug - 23 Aug	Kuwait Airways
24 Aug - 31 Aug	Finnair
20 Aug - 11 Sep	Air Astana
17 Aug - 14 Sep	IndiGo
01 Aug - 01 Aug	Thai Airways
08 Aug - 19 Aug	Emirates
09 Aug - 31 Aug	EVA Air	direct
14 Aug - 23 Aug	EVA Air	direct
11 Aug - 19 Aug	EVA Air	direct
17 Aug - 14 Sep	EVA Air	direct
25 Aug - 01 Sep	EVA Air	direct
20 Aug - 11 Sep	EVA Air	direct
16 Aug - 23 Aug	EVA Air	direct
27 Aug - 05 Sep	China Southern

Also check the deals for one-way flights from Bangkok to London in August.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Bangkok to London in August from 662€

Return flights