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

Return flights

11 May - 25 May	Pegasus Airlines
13 May - 26 May	Pegasus Airlines
14 May - 05 Jun	Pegasus Airlines
06 May - 20 May	Pegasus Airlines
09 May - 19 May	Ryanair
19 May - 18 Jun	Ryanair
14 May - 16 Jun	Pegasus Airlines
19 May - 09 Jun	Ryanair
30 May - 08 Jun	Ryanair
11 May - 21 May	Pegasus Airlines
06 May - 19 May	Pegasus Airlines
03 May - 22 May	Ryanair
26 May - 10 Jun	Ryanair
11 May - 02 Jun	Pegasus Airlines
13 May - 25 May	Pegasus Airlines
30 May - 13 Jun	Ryanair
29 May - 05 Jun	Ryanair
03 May - 15 May	Ryanair
30 May - 12 Jun	Ryanair
03 May - 16 May	Ryanair

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 544€

Return flights