Cheapest return flights from Bilbao to Istanbul in April from $217

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

Return flights

26 Apr - 10 May Vueling Airlines
24 Apr - 29 Apr Vueling Airlines
29 Apr - 04 May Vueling Airlines
03 Apr - 07 Apr Aegean Airlines
03 Apr - 10 Apr Aegean Airlines
03 Apr - 08 Apr Aegean Airlines
03 Apr - 12 Apr Aegean Airlines
29 Apr - 03 May Vueling Airlines
29 Apr - 05 May Vueling Airlines
30 Apr - 05 May Lufthansa
05 Apr - 09 Apr Air Europa
01 Apr - 05 Apr Air Europa
01 Apr - 07 Apr Air Europa
01 Apr - 04 Apr Air Europa
01 Apr - 12 Apr Air Europa
29 Apr - 05 May Turkish Airlines direct
29 Apr - 04 May Turkish Airlines direct
30 Apr - 05 May Turkish Airlines direct

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

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 Istanbul

Cheap car rent in Istanbul

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