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

Return flights

06 Sep - 21 Sep	Pegasus Airlines
01 Sep - 17 Sep	Pegasus Airlines
14 Sep - 30 Sep	Pegasus Airlines
01 Sep - 22 Sep	Pegasus Airlines
08 Sep - 18 Sep	AJet
08 Sep - 01 Oct	Pegasus Airlines
01 Sep - 29 Sep	Pegasus Airlines
28 Sep - 11 Oct	Wizz Air
05 Sep - 01 Oct	Pegasus Airlines
15 Sep - 29 Sep	Wizz Air
01 Sep - 11 Sep	Pegasus Airlines
25 Sep - 09 Oct	AJet
27 Sep - 12 Oct	easyJet
30 Sep - 22 Oct	Turkish Airlines
23 Sep - 13 Oct	Turkish Airlines
30 Sep - 19 Oct	Turkish Airlines
30 Sep - 18 Oct	Turkish Airlines

Also check the deals for one-way flights from Basel 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 Basel to Colombo in September from 502€

Return flights