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

Return flights

25 Sep - 20 Oct	easyJet
25 Sep - 25 Oct	Pegasus Airlines
22 Sep - 07 Oct	Wizz Air
15 Sep - 29 Sep	Ryanair
20 Sep - 07 Oct	Wizz Air Malta
10 Sep - 05 Oct	easyJet
23 Sep - 30 Sep	Ryanair
15 Sep - 26 Sep	Ryanair
21 Sep - 05 Oct	Wizz Air
17 Sep - 24 Sep	Ryanair
11 Sep - 29 Sep	easyJet
14 Sep - 22 Sep	Ryanair
21 Sep - 06 Oct	Wizz Air
20 Sep - 27 Sep	easyJet
08 Sep - 08 Oct	Pegasus Airlines
27 Sep - 10 Oct	Turkish Airlines
26 Sep - 10 Oct	Air China

Also check the deals for one-way flights from Lisbon 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 Lisbon to Colombo in September from 576€

Return flights