AirHint found the following cheapest return flights from Kayseri (ASR) to Rotterdam (RTM) in September 2025 (see full year).

Return flights

25 Sep - 23 Oct	Pegasus Airlines
25 Sep - 25 Sep	Pegasus Airlines
23 Sep - 30 Sep	Pegasus Airlines
23 Sep - 27 Sep	Pegasus Airlines
23 Sep - 21 Oct	Pegasus Airlines
23 Sep - 20 Oct	Pegasus Airlines
23 Sep - 23 Sep	Pegasus Airlines
25 Sep - 02 Oct	SunExpress	direct
25 Sep - 23 Oct	SunExpress	direct
25 Sep - 09 Oct	SunExpress	direct

Also check the deals for one-way flights from Kayseri to Rotterdam in September.

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 Kayseri to Rotterdam in September from 238€

Return flights