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

Return flights

04 May - 18 May	Ryanair
11 May - 02 Jun	Ryanair
27 May - 17 Jun	Ryanair
17 May - 19 Jun	Ryanair
04 May - 19 May	Ryanair
05 May - 25 May	Ryanair
13 May - 18 May	Ryanair
08 May - 18 May	Ryanair
25 May - 07 Jun	Ryanair
15 May - 25 May	Turkish Airlines
24 May - 28 May	Ryanair
06 May - 05 Jun	Ryanair
04 May - 13 May	Ryanair
04 May - 10 May	Ryanair
20 May - 30 May	Ryanair
14 May - 07 Jun	Ryanair
10 May - 02 Jun	Turkish Airlines
22 May - 05 Jun	Ryanair
24 May - 06 Jun	Turkish Airlines
21 May - 06 Jun	Turkish Airlines

Also check the deals for one-way flights from London to Colombo 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 Colombo in May from $619

Return flights