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

Return flights

23 Sep - 21 Oct	Wizz Air UK
21 Sep - 28 Sep	Wizz Air UK
15 Sep - 29 Sep	Wizz Air UK
21 Sep - 04 Oct	Wizz Air UK
02 Sep - 24 Sep	Gulf Air
15 Sep - 21 Sep	Wizz Air
14 Sep - 28 Sep	Wizz Air
04 Sep - 15 Sep	Wizz Air
05 Sep - 21 Sep	Norwegian
01 Sep - 17 Sep	Wizz Air UK
07 Sep - 21 Sep	Wizz Air
07 Sep - 23 Sep	Air Arabia
16 Sep - 07 Oct	Air Arabia
01 Sep - 01 Oct	Air Arabia
16 Sep - 14 Oct	Air Arabia
28 Sep - 04 Oct	Air Arabia
26 Sep - 10 Oct	Air Arabia
27 Sep - 11 Oct	Air Arabia
11 Sep - 03 Oct	Air Arabia
18 Sep - 02 Oct	Air Arabia

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 $611

Return flights