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

Return flights

13 May - 20 May	Gulf Air
20 May - 10 Jun	Gulf Air
11 May - 01 Jun	Gulf Air
20 May - 01 Jun	Gulf Air
11 May - 10 Jun	Gulf Air
03 May - 13 May	Gulf Air
10 May - 10 Jun	Gulf Air
27 May - 24 Jun	Gulf Air
31 May - 15 Jun	Gulf Air
19 May - 01 Jun	Gulf Air
14 May - 12 Jun	Gulf Air
20 May - 20 Jun	Gulf Air
01 May - 13 May	Gulf Air
11 May - 21 May	Gulf Air
20 May - 28 May	Gulf Air
11 May - 24 May	Gulf Air
10 May - 24 May	Gulf Air
13 May - 17 May	Gulf Air
12 May - 17 May	Gulf Air
01 May - 16 May	Gulf Air

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 568€

Return flights