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

Return flights

04 May - 10 Jun	Gulf Air
21 May - 01 Jun	Gulf Air
26 May - 16 Jun	Gulf Air
19 May - 26 May	Gulf Air
18 May - 24 May	Gulf Air
26 May - 05 Jun	Gulf Air
14 May - 26 Jun	Gulf Air
03 May - 10 May	Gulf Air
13 May - 24 May	Gulf Air
14 May - 21 May	Gulf Air
07 May - 26 May	Gulf Air
14 May - 18 May	Gulf Air
05 May - 19 May	Gulf Air
06 May - 16 May	Gulf Air
14 May - 28 May	Gulf Air
28 May - 11 Jun	Gulf Air
28 May - 12 Jun	Gulf Air
29 May - 13 Jun	Gulf Air
30 May - 13 Jun	Gulf Air
22 May - 07 Jun	Eurowings

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 600€

Return flights