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

Return flights

12 May - 26 May	Lufthansa
06 May - 24 May	Lufthansa
06 May - 17 May	Lufthansa
01 May - 04 May	Lufthansa
07 May - 21 May	SWISS
01 May - 13 May	Lufthansa
13 May - 27 May	SWISS
11 May - 18 May	Lufthansa
13 May - 18 May	KLM
18 May - 27 May	Lufthansa
04 May - 03 Jun	Lufthansa
21 May - 04 Jun	SWISS
16 May - 06 Jun	SWISS
22 May - 07 Jun	Lufthansa
21 May - 07 Jun	Lufthansa
22 May - 06 Jun	ITA Airways
27 May - 17 Jun	Lufthansa
09 May - 07 Jun	SWISS

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 788€

Return flights