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

Return flights

28 Mar - 10 Apr	FitsAir
11 Mar - 18 Mar	Etihad Airways
09 Mar - 16 Mar	Etihad Airways
10 Mar - 14 Mar	Etihad Airways
09 Mar - 19 Mar	Etihad Airways
10 Mar - 17 Mar	Air India
20 Mar - 09 Apr	Etihad Airways
25 Mar - 30 Mar	IndiGo
12 Mar - 19 Mar	Air India
25 Mar - 14 Apr	Air India
23 Mar - 15 Apr	Air India
03 Mar - 10 Mar	Air India
03 Mar - 11 Mar	Air India
25 Mar - 10 Apr	IndiGo
23 Mar - 17 Apr	Air India
30 Mar - 19 Apr	Air India
03 Mar - 12 Mar	Air India
24 Mar - 06 Apr	Air India
21 Mar - 06 Apr	Air India
11 Mar - 04 Apr	Gulf Air

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 498€

Return flights