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

Return flights

19 Sep - 22 Sep	Ryanair
26 Sep - 01 Oct	Ryanair
24 Sep - 29 Sep	Ryanair
24 Sep - 06 Oct	Ryanair
26 Sep - 29 Sep	Ryanair
21 Sep - 29 Sep	Ryanair
28 Sep - 06 Oct	Ryanair
26 Sep - 06 Oct	Ryanair
10 Sep - 10 Sep	Ryanair
27 Sep - 06 Oct	Ryanair
11 Sep - 12 Sep	Ryanair
22 Sep - 23 Sep	Ryanair
21 Sep - 25 Sep	Ryanair
09 Sep - 11 Sep	Ryanair
30 Sep - 02 Oct	Ryanair
20 Sep - 25 Sep	Ryanair
29 Sep - 01 Oct	Ryanair
29 Sep - 02 Oct	Ryanair
26 Sep - 01 Oct	Lufthansa	direct
26 Sep - 06 Oct	Lufthansa	direct

Also check the deals for one-way flights from Toulouse 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 Toulouse to Frankfurt in September from $138

Return flights