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

Return flights

12 Mar - 19 Mar	Air India
08 Mar - 17 Mar	Air India
05 Mar - 12 Mar	IndiGo
01 Mar - 08 Mar	Air India
24 Mar - 06 Apr	Air India
04 Mar - 14 Mar	Air India
14 Mar - 21 Mar	Air India
06 Mar - 20 Mar	Air India
22 Mar - 12 Apr	Air India
01 Mar - 31 Mar	Air India
14 Mar - 11 Apr	Air India
12 Mar - 19 Mar	SriLankan Airlines	direct
05 Mar - 12 Mar	SriLankan Airlines	direct
22 Mar - 12 Apr	SriLankan Airlines	direct
14 Mar - 11 Apr	SriLankan Airlines	direct

Also check the deals for one-way flights from Colombo to London in March.

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 March from 594€

Return flights