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

Return flights

09 Apr - 14 Apr	Lufthansa
15 Apr - 22 Apr	Wizz Air
17 Apr - 20 Apr	Lufthansa
01 Apr - 08 Apr	Wizz Air
30 Apr - 04 May	Wizz Air
15 Apr - 19 Apr	Lufthansa
13 Apr - 19 Apr	Lufthansa
01 Apr - 06 Apr	Wizz Air
30 Apr - 16 May	Wizz Air
29 Apr - 04 May	Wizz Air
30 Apr - 10 May	Wizz Air
08 Apr - 15 Apr	Wizz Air
23 Apr - 26 Apr	Aegean Airlines
09 Apr - 14 Apr	LOT	direct
30 Apr - 17 May	Wizz Air
30 Apr - 16 May	LOT	direct
30 Apr - 04 May	Turkish Airlines	direct
29 Apr - 04 May	Turkish Airlines	direct
30 Apr - 17 May	Turkish Airlines	direct
30 Apr - 10 May	Turkish Airlines	direct

Also check the deals for one-way flights from Warsaw 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 Warsaw to Istanbul in April from $258

Return flights