Cheapest return flights from London to Colombo in September from $729

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

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

Return flights

10 Sep - 18 Sep Air Serbia
23 Sep - 01 Oct Air India
04 Sep - 12 Sep Etihad Airways
24 Sep - 29 Sep British Airways
01 Sep - 29 Sep Air India
17 Sep - 30 Sep Air India
15 Sep - 22 Sep Air India
18 Sep - 30 Sep Air India
01 Sep - 26 Sep Air India
02 Sep - 24 Sep Air India
15 Sep - 29 Sep Air India
10 Sep - 03 Oct Air India
18 Sep - 02 Oct Air India
07 Sep - 01 Oct Air India
17 Sep - 03 Oct Air India
07 Sep - 03 Oct Air India
22 Sep - 06 Oct Air India
03 Sep - 16 Oct Air India
22 Sep - 01 Oct Air India
22 Sep - 15 Oct Air India

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

Skyscanner

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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