Cheapest return flights from San Diego to Bilbao in December from 363€

AirHint found the following cheapest return flights from San Diego (SAN) to Bilbao (BIO) in December 2025 (see full year).

Return flights

04 Dec - 09 Dec Lufthansa
23 Dec - 07 Jan Hawaiian Airlines
23 Dec - 06 Jan Hawaiian Airlines
23 Dec - 05 Jan Hawaiian Airlines
21 Dec - 05 Jan Hawaiian Airlines
23 Dec - 04 Jan Hawaiian Airlines
23 Dec - 03 Jan Hawaiian Airlines
23 Dec - 02 Jan Hawaiian Airlines

Also check the deals for one-way flights from San Diego to Bilbao in December.

Powered by

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.

Book a cheap hotel in Bilbao

Cheap car rent in Bilbao

Feel free to contact us with any feedback or request another flight research.