AirHint found the following cheapest one-way flights from Bilbao (BIO) to Bucharest (BBU) in October 2025 (see full year).

One-Way flights

28 Oct	easyJet
15 Oct	Vueling Airlines
20 Oct	Vueling Airlines
21 Oct	Vueling Airlines
22 Oct	Vueling Airlines
16 Oct	Vueling Airlines
23 Oct	Vueling Airlines
19 Oct	Vueling Airlines
17 Oct	Vueling Airlines
27 Oct	Vueling Airlines

Also check the deals for return flights from Bilbao to Bucharest in October.

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 Bucharest in October from $36

One-Way flights