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

Return flights

13 Sep - 26 Sep	Vueling Airlines
23 Sep - 07 Oct	Vueling Airlines
18 Sep - 28 Sep	Vueling Airlines
16 Sep - 29 Sep	Vueling Airlines
11 Sep - 26 Sep	Vueling Airlines
10 Sep - 24 Sep	Vueling Airlines
15 Sep - 30 Sep	easyJet
10 Sep - 26 Sep	Vueling Airlines
15 Sep - 29 Sep	Vueling Airlines
05 Sep - 21 Sep	Vueling Airlines
22 Sep - 29 Sep	Vueling Airlines

Also check the deals for one-way flights from Bilbao 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 Bilbao to Colombo in September from $751

Return flights