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

Return flights

25 Sep - 30 Sep	Spirit Airlines
19 Sep - 23 Sep	Frontier Airlines
05 Sep - 20 Sep	Spirit Airlines
11 Sep - 25 Sep	Lufthansa	direct
05 Sep - 12 Sep	Lufthansa	direct
11 Sep - 18 Sep	Lufthansa	direct
08 Sep - 15 Sep	Lufthansa	direct
14 Sep - 28 Sep	Air Canada
19 Sep - 23 Sep	Lufthansa	direct
19 Sep - 26 Sep	Air Canada
25 Sep - 05 Oct	Turkish Airlines
25 Sep - 05 Oct	American Airlines	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 $569

Return flights