Cheapest return flights from Bilbao to Istanbul in May from $157

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

Return flights

09 May - 13 May Vueling Airlines
08 May - 13 May Vueling Airlines
06 May - 13 May Vueling Airlines
09 May - 07 Jun Vueling Airlines
07 May - 11 May Vueling Airlines
02 May - 05 May Pegasus Airlines direct
01 May - 05 May Pegasus Airlines direct
07 May - 14 May Vueling Airlines
07 May - 11 May Pegasus Airlines direct
07 May - 21 May Pegasus Airlines direct
01 May - 04 May Pegasus Airlines direct
09 May - 07 Jun Pegasus Airlines direct
25 May - 12 Jun Vueling Airlines
25 May - 14 Jun Vueling Airlines
31 May - 12 Jun Vueling Airlines
18 May - 07 Jun Vueling Airlines
23 May - 12 Jun Vueling Airlines
25 May - 07 Jun Vueling Airlines
31 May - 14 Jun Vueling Airlines
25 May - 15 Jun Vueling Airlines

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

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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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