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

Return flights

04 Dec - 09 Dec	Pegasus Airlines	direct
25 Dec - 09 Jan	SunExpress
25 Dec - 10 Jan	SunExpress
25 Dec - 09 Jan	Pegasus Airlines	direct
25 Dec - 10 Jan	Pegasus Airlines	direct
13 Dec - 31 Dec	Pegasus Airlines	direct
19 Dec - 01 Jan	British Airways
19 Dec - 01 Jan	Pegasus Airlines	direct

Also check the deals for one-way flights from Rotterdam 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 Rotterdam to Istanbul in December from $170

Return flights