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

Return flights

13 May - 16 Jun	Ryanair
12 May - 15 Jun	Ryanair
13 May - 26 May	Ryanair
12 May - 26 May	Ryanair
12 May - 19 May	Ryanair
05 May - 19 May	Ryanair
09 May - 21 May	Ryanair
10 May - 11 Jun	Ryanair
11 May - 26 May	Ryanair
06 May - 30 Jun	Ryanair
17 May - 11 Jun	Ryanair
04 May - 19 May	Ryanair
13 May - 23 May	Ryanair
12 May - 23 May	Ryanair
09 May - 22 May	Ryanair
07 May - 10 Jun	Ryanair
06 May - 28 Jun	Ryanair
02 May - 17 Jun	Ryanair
12 May - 02 Jun	Ryanair
01 May - 30 Jun	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 416€

Return flights