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

Return flights

04 Sep - 18 Sep	Wizz Air UK
04 Sep - 02 Oct	Wizz Air UK
25 Sep - 09 Oct	Wizz Air UK
11 Sep - 18 Sep	Wizz Air UK
02 Sep - 02 Oct	Wizz Air UK
16 Sep - 09 Oct	Wizz Air UK
08 Sep - 18 Sep	Wizz Air
15 Sep - 15 Oct	Wizz Air UK
11 Sep - 02 Oct	Wizz Air UK
26 Sep - 17 Oct	Wizz Air
29 Sep - 17 Oct	Wizz Air
02 Sep - 18 Sep	Wizz Air UK
02 Sep - 16 Sep	Wizz Air UK
27 Sep - 17 Oct	Wizz Air UK
30 Sep - 15 Oct	Wizz Air UK
06 Sep - 16 Sep	Wizz Air UK
04 Sep - 19 Sep	Wizz Air UK
02 Sep - 29 Sep	Wizz Air UK
04 Sep - 20 Sep	Wizz Air UK
02 Sep - 21 Sep	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 467€

Return flights