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

Return flights

21 Sep - 19 Oct	Wizz Air
27 Sep - 12 Oct	Wizz Air UK
10 Sep - 30 Sep	SunExpress
07 Sep - 14 Sep	Wizz Air
07 Sep - 30 Sep	Wizz Air
21 Sep - 12 Oct	Wizz Air
11 Sep - 23 Sep	Wizz Air
23 Sep - 30 Sep	Wizz Air UK
09 Sep - 23 Sep	Wizz Air UK
13 Sep - 28 Sep	Wizz Air UK
04 Sep - 30 Sep	Wizz Air
23 Sep - 06 Oct	Gulf Air
20 Sep - 20 Oct	Gulf Air
09 Sep - 22 Sep	Wizz Air UK
07 Sep - 28 Sep	Wizz Air
27 Sep - 06 Oct	Wizz Air UK
04 Sep - 03 Oct	Wizz Air
20 Sep - 06 Oct	Gulf Air
16 Sep - 06 Oct	Gulf Air
14 Sep - 02 Oct	Wizz Air UK

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

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 September from 560€

Return flights