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

Return flights

12 May - 11 Jun	Ryanair
18 May - 04 Jun	Ryanair
16 May - 04 Jun	Ryanair
20 May - 21 Jun	Ryanair
01 May - 10 May	Pegasus Airlines
27 May - 14 Jun	Ryanair
29 May - 14 Jun	Ryanair
11 May - 25 May	Pegasus Airlines
13 May - 19 May	Ryanair
12 May - 29 Jun	Ryanair
02 May - 09 May	Ryanair
24 May - 21 Jun	Ryanair
11 May - 20 May	Pegasus Airlines
06 May - 20 May	Ryanair
18 May - 16 Jun	Ryanair
06 May - 19 May	Ryanair
28 May - 04 Jun	Ryanair
10 May - 19 May	Ryanair
12 May - 22 May	Ryanair
09 May - 20 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.

Book a cheap hotel in Bangkok

Cheap car rent in Bangkok

Cheapest return flights from London to Bangkok in May from 521€

Return flights