AirHint found the following cheapest return flights from Warsaw (WMI) to Istanbul (SAW) in December 2025 (see full year).

Return flights

02 Dec - 08 Dec	Ryanair
02 Dec - 04 Dec	Ryanair
18 Dec - 24 Dec	Wizz Air
02 Dec - 06 Dec	Ryanair
02 Dec - 09 Dec	Ryanair
15 Dec - 11 Jan	Wizz Air
01 Dec - 11 Dec	Wizz Air
18 Dec - 29 Dec	Wizz Air
01 Dec - 04 Dec	Wizz Air
02 Dec - 16 Dec	Ryanair
10 Dec - 21 Dec	Wizz Air
18 Dec - 10 Jan	Wizz Air
31 Dec - 08 Jan	Wizz Air
29 Dec - 11 Jan	Wizz Air
16 Dec - 11 Jan	Wizz Air
27 Dec - 10 Jan	Ryanair
19 Dec - 10 Jan	Wizz Air
27 Dec - 08 Jan	Ryanair
29 Dec - 08 Jan	Wizz Air
16 Dec - 08 Jan	Wizz Air

Also check the deals for one-way flights from Warsaw to Istanbul in December.

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 December from $140

Return flights