Cheapest return flights from Bilbao to Istanbul in April from 110€

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

Return flights

18 Apr - 22 Apr Vueling Airlines
22 Apr - 29 Apr Wizz Air UK
17 Apr - 21 Apr Wizz Air UK
17 Apr - 19 Apr Wizz Air UK
16 Apr - 28 Apr Wizz Air UK
12 Apr - 18 Apr Pegasus Airlines direct
22 Apr - 26 Apr Wizz Air UK
27 Apr - 03 May Wizz Air UK
17 Apr - 20 Apr Wizz Air UK
18 Apr - 20 Apr Vueling Airlines
17 Apr - 29 Apr Wizz Air UK
25 Apr - 08 May Vueling Airlines
29 Apr - 03 May Wizz Air UK
24 Apr - 03 May Wizz Air UK
30 Apr - 05 May Pegasus Airlines direct
29 Apr - 02 May Wizz Air UK
27 Apr - 02 May Wizz Air UK
26 Apr - 03 May Vueling Airlines
27 Apr - 01 May Wizz Air UK
24 Apr - 02 May Wizz Air UK

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

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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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