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

Return flights

06 May - 19 May	Wizz Air Malta
13 May - 19 May	Wizz Air Malta
06 May - 12 May	Wizz Air Malta
06 May - 10 May	Wizz Air Malta
10 May - 19 May	Air China
10 May - 17 May	Air China
12 May - 19 May	Air China
17 May - 24 May	Air China
14 May - 22 May	Air China
06 May - 27 May	Air China
30 May - 20 Jun	Air China
24 May - 13 Jun	Air China
20 May - 03 Jun	Air China
03 May - 04 Jun	Air China
15 May - 12 Jun	Air China
22 May - 08 Jun	Air China
12 May - 09 Jun	Air China
18 May - 09 Jun	Air China
18 May - 07 Jun	Air China
10 May - 01 Jun	Air China

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

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 London to Bangkok in May from 490€

Return flights