AirHint found the following cheapest return flights from Dallas-Fort Worth (DFW) to Frankfurt (FRA) in September 2025 (see full year).

Return flights

13 Sep - 24 Sep	Frontier Airlines
15 Sep - 09 Oct	Frontier Airlines
11 Sep - 22 Sep	Spirit Airlines
26 Sep - 28 Sep	Frontier Airlines
08 Sep - 15 Sep	Frontier Airlines
02 Sep - 07 Sep	Frontier Airlines
03 Sep - 07 Sep	Frontier Airlines
05 Sep - 26 Sep	Spirit Airlines
10 Sep - 23 Sep	Lufthansa	direct
15 Sep - 09 Oct	Finnair	direct
16 Sep - 30 Sep	Lufthansa	direct
13 Sep - 24 Sep	British Airways	direct

Also check the deals for one-way flights from Dallas-Fort Worth 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 Dallas-Fort Worth to Frankfurt in September from 529€

Return flights