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

Return flights

14 May - 20 May	Air India
13 May - 03 Jun	Air India
12 May - 10 Jun	Air India
11 May - 20 May	Air India
21 May - 09 Jun	Air India
25 May - 10 Jun	Air India
25 May - 03 Jun	Air India
14 May - 10 Jun	Air India
27 May - 03 Jun	Air India
14 May - 02 Jun	Air India
11 May - 27 May	Air India
04 May - 13 May	Air India
07 May - 24 May	Air India
07 May - 20 May	Air India
05 May - 03 Jun	Air India
26 May - 23 Jun	Air India
08 May - 20 May	Air India
17 May - 27 May	Air India
15 May - 26 May	Air India
02 May - 27 May	Air India

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 $709

Return flights