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

Return flights

27 Apr - 11 May	Wizz Air
21 Apr - 27 Apr	Lufthansa
10 Apr - 19 Apr	Lufthansa
17 Apr - 19 Apr	Lufthansa
12 Apr - 19 Apr	Aegean Airlines
30 Apr - 04 May	Lufthansa
11 Apr - 19 Apr	Aegean Airlines
03 Apr - 07 Apr	Aegean Airlines
02 Apr - 09 Apr	Wizz Air Malta
02 Apr - 06 Apr	Aegean Airlines
17 Apr - 19 Apr	Turkish Airlines	direct
21 Apr - 27 Apr	Turkish Airlines	direct
30 Apr - 04 May	Turkish Airlines	direct
27 Apr - 11 May	Turkish Airlines	direct

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

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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Cheapest return flights from Barcelona to Istanbul in April from $246

Return flights