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

Return flights

10 Mar - 17 Mar	Air India
10 Mar - 13 Mar	Air India
07 Mar - 14 Mar	IndiGo
18 Mar - 26 Apr	Air India
05 Mar - 10 Mar	Air India
01 Mar - 08 Mar	Air India
20 Mar - 31 Mar	Air India
24 Mar - 06 Apr	Air India
17 Mar - 06 Apr	Air India
26 Mar - 18 Apr	Air India
09 Mar - 16 Mar	Air India
04 Mar - 07 Mar	Air India
27 Mar - 06 Apr	Air India
27 Mar - 10 Apr	Air India
25 Mar - 03 Apr	Air India
21 Mar - 30 Mar	Air India
21 Mar - 29 Mar	Air India
18 Mar - 26 Apr	SriLankan Airlines	direct
25 Mar - 03 Apr	SriLankan Airlines	direct
24 Mar - 06 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 580€

Return flights