AirHint found the following cheapest one-way flights from Bilbao (BIO) to Basel (BSL) in December 2025 (see full year).

One-Way flights

29 Dec	easyJet	direct
26 Dec	easyJet	direct
15 Dec	easyJet	direct
22 Dec	easyJet	direct
08 Dec	easyJet	direct
18 Dec	Vueling Airlines
24 Dec	Vueling Airlines
23 Dec	Vueling Airlines
05 Dec	easyJet	direct
10 Dec	Vueling Airlines

Also check the deals for return flights from Bilbao to Basel in December.

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 one-way flights from Bilbao to Basel in December from $39

One-Way flights