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

Return flights

08 May - 06 Jun	AJet
17 May - 15 Jun	AJet
12 May - 11 Jun	Ryanair
15 May - 14 Jun	AJet
18 May - 08 Jun	Ryanair
18 May - 09 Jun	AJet
06 May - 19 May	Pegasus Airlines
18 May - 15 Jun	Pegasus Airlines
15 May - 06 Jun	AJet
05 May - 15 May	Ryanair
04 May - 08 Jun	Ryanair
03 May - 11 May	Pegasus Airlines
12 May - 09 Jun	Pegasus Airlines
09 May - 14 May	AJet
10 May - 24 May	AJet
05 May - 19 May	Pegasus Airlines
14 May - 19 May	Pegasus Airlines
12 May - 24 May	Pegasus Airlines
01 May - 17 May	AJet
13 May - 23 May	Ryanair

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 $526

Return flights