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

Return flights

05 May - 19 May	ITA Airways
07 May - 21 May	SWISS
12 May - 19 May	SWISS
14 May - 19 May	SWISS
08 May - 23 May	SWISS
02 May - 13 May	SWISS
25 May - 01 Jun	SWISS
20 May - 27 May	KLM
09 May - 21 May	KLM
15 May - 25 May	KLM
14 May - 07 Jun	KLM
14 May - 08 Jun	Lufthansa
08 May - 17 May	KLM
23 May - 07 Jun	KLM
23 May - 02 Jun	KLM
21 May - 12 Jun	Lufthansa
12 May - 07 Jun	Lufthansa
26 May - 02 Jun	SWISS
23 May - 14 Jun	KLM
22 May - 06 Jun	SWISS

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.

Book a cheap hotel in Colombo

Cheap car rent in Colombo

Cheapest return flights from London to Colombo in May from $734

Return flights