Cheapest one-way flights from Castellón to Bilbao in September from $26

AirHint found the following cheapest one-way flights from Castellón (CDT) to Bilbao (BIO) in September 2025 (see full year).

One-Way flights

30 Sep Volotea direct
09 Sep Volotea direct
16 Sep Volotea direct
27 Sep Volotea direct
20 Sep Volotea direct
23 Sep Volotea direct
22 Sep Iberia
04 Sep Iberia
11 Sep Iberia
02 Sep Volotea direct

Also check the deals for return flights from Castellón to Bilbao in September.

Skyscanner

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.