Cheapest return flights from Colombo to London in September from $695

Best time to book flights for Colombo (CMB) to London (LHR) flights at AirHint

AirHint found the following cheapest return flights from Colombo (CMB) to London (LHR) in September 2025 (see full year).

Return flights

25 Sep - 30 Oct Air India
22 Sep - 28 Sep Etihad Airways
28 Sep - 28 Sep Air India
22 Sep - 28 Sep SriLankan Airlines direct
09 Sep - 29 Oct Emirates
09 Sep - 27 Sep Emirates
07 Sep - 21 Sep Singapore Airlines
06 Sep - 04 Oct Emirates
03 Sep - 18 Sep Air India
01 Sep - 12 Sep IndiGo
01 Sep - 30 Sep Emirates
01 Sep - 21 Sep Emirates
09 Sep - 27 Sep SriLankan Airlines direct
09 Sep - 29 Oct SriLankan Airlines direct
06 Sep - 04 Oct SriLankan Airlines direct

Also check the deals for one-way flights from Colombo to London in September.

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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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