AirHint found the following cheapest return flights from Frankfurt (FRA) to Amsterdam (AMS) in September 2025 (see full year).

Return flights

15 Sep - 16 Sep	Ryanair
10 Sep - 11 Sep	Ryanair
05 Sep - 12 Sep	Ryanair
03 Sep - 25 Sep	Ryanair
15 Sep - 17 Sep	Ryanair
23 Sep - 25 Sep	Ryanair
03 Sep - 05 Sep	Ryanair
11 Sep - 13 Sep	Ryanair
09 Sep - 11 Sep	Ryanair
09 Sep - 10 Sep	Ryanair
27 Sep - 01 Oct	Lufthansa	direct
25 Sep - 09 Oct	KLM	direct
19 Sep - 03 Oct	KLM	direct
28 Sep - 05 Oct	KLM	direct
26 Sep - 03 Oct	KLM	direct
29 Sep - 11 Oct	KLM	direct
01 Sep - 23 Oct	KLM	direct

Also check the deals for one-way flights from Frankfurt to Amsterdam 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 Frankfurt to Amsterdam in September from 124€

Return flights