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

Return flights

09 Sep - 11 Sep	easyJet
04 Sep - 11 Sep	Lufthansa	direct
03 Sep - 06 Sep	Air France
06 Sep - 09 Sep	Air France
15 Sep - 18 Sep	Air France
22 Sep - 25 Sep	Air France
27 Sep - 30 Sep	Air France
10 Sep - 17 Sep	Air France
02 Sep - 09 Sep	Air France
11 Sep - 18 Sep	Air France
29 Sep - 02 Oct	Lufthansa	direct
28 Sep - 01 Oct	Lufthansa	direct
30 Sep - 03 Oct	Lufthansa	direct
24 Sep - 01 Oct	Lufthansa	direct
25 Sep - 02 Oct	Lufthansa	direct
26 Sep - 03 Oct	Lufthansa	direct
27 Sep - 04 Oct	Lufthansa	direct
28 Sep - 05 Oct	Lufthansa	direct
29 Sep - 06 Oct	Lufthansa	direct
30 Sep - 07 Oct	Lufthansa	direct

Also check the deals for one-way flights from Amsterdam to Frankfurt 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 Amsterdam to Frankfurt in September from $269

Return flights