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

Return flights

17 May - 26 May	Air India
22 May - 30 Jun	Air India
06 May - 20 May	Air India
01 May - 08 May	Etihad Airways
15 May - 25 May	Air India
15 May - 20 May	Air India
15 May - 26 May	Air India
22 May - 26 May	Air India
04 May - 26 May	Air India
11 May - 08 Jun	Emirates
08 May - 17 May	Emirates
06 May - 20 May	SriLankan Airlines	direct
22 May - 30 Jun	SriLankan Airlines	direct

Also check the deals for one-way flights from Colombo to London 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 Colombo to London in May from 618€

Return flights