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

Return flights

23 Sep - 07 Oct	Wizz Air Malta
20 Sep - 08 Oct	Wizz Air UK
09 Sep - 29 Sep	Wizz Air UK
08 Sep - 06 Oct	Wizz Air UK
17 Sep - 03 Oct	Wizz Air
11 Sep - 30 Sep	Wizz Air UK
23 Sep - 29 Sep	Wizz Air Malta
23 Sep - 03 Oct	Wizz Air Malta
16 Sep - 14 Oct	Wizz Air UK
21 Sep - 03 Oct	Wizz Air
08 Sep - 20 Oct	Wizz Air UK
28 Sep - 03 Oct	Wizz Air
08 Sep - 17 Sep	Wizz Air UK
04 Sep - 12 Sep	Wizz Air
09 Sep - 27 Sep	Wizz Air UK
30 Sep - 28 Oct	Wizz Air UK
20 Sep - 28 Sep	Wizz Air UK
06 Sep - 09 Sep	Wizz Air UK
04 Sep - 17 Sep	Wizz Air
24 Sep - 29 Sep	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.

Book a cheap hotel in Colombo

Cheap car rent in Colombo

Cheapest return flights from London to Colombo in September from $579

Return flights