AirHint found the following cheapest return flights from Bilbao (BIO) to Lisbon (LIS) in April 2026 (see full year).

Return flights

14 Apr - 03 May	Vueling Airlines
30 Apr - 03 May	Iberia
13 Apr - 03 May	Vueling Airlines
09 Apr - 12 Apr	Vueling Airlines
02 Apr - 06 Apr	Air Europa
14 Apr - 29 Apr	Vueling Airlines
09 Apr - 10 Apr	Vueling Airlines
13 Apr - 29 Apr	Vueling Airlines
09 Apr - 09 Apr	Vueling Airlines
11 Apr - 12 Apr	Vueling Airlines
09 Apr - 17 Apr	Vueling Airlines
11 Apr - 17 Apr	Vueling Airlines
09 Apr - 29 Apr	Vueling Airlines
30 Apr - 03 May	TAP	direct
30 Apr - 21 May	Vueling Airlines

Also check the deals for one-way flights from Bilbao to Lisbon in April.

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 Lisbon in April from $133

Return flights