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

Return flights

05 Sep - 17 Sep	Air Arabia
04 Sep - 18 Sep	Air Arabia
24 Sep - 19 Oct	Wizz Air UK
07 Sep - 05 Oct	Wizz Air UK
11 Sep - 25 Sep	Wizz Air UK
14 Sep - 05 Oct	Wizz Air UK
07 Sep - 28 Sep	Wizz Air
28 Sep - 05 Oct	Wizz Air UK
07 Sep - 12 Sep	Wizz Air UK
30 Sep - 08 Oct	Gulf Air
04 Sep - 10 Sep	Wizz Air UK
25 Sep - 05 Oct	Wizz Air UK
14 Sep - 21 Sep	Vueling Airlines
07 Sep - 19 Sep	Wizz Air UK
03 Sep - 11 Sep	Wizz Air UK
11 Sep - 26 Sep	Wizz Air UK
28 Sep - 04 Oct	Wizz Air UK
23 Sep - 19 Oct	easyJet
20 Sep - 02 Oct	Wizz Air UK
21 Sep - 12 Oct	Wizz Air

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 475€

Return flights