Cheapest return flights from Austin to Frankfurt in September from $658

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

Return flights

14 Sep - 23 Sep American Airlines
03 Sep - 10 Sep Lufthansa direct
09 Sep - 16 Sep Lufthansa
24 Sep - 01 Oct Lufthansa direct
14 Sep - 21 Sep United
18 Sep - 25 Sep Lufthansa direct
19 Sep - 26 Sep United
18 Sep - 01 Oct Lufthansa direct
29 Sep - 06 Oct Lufthansa direct
06 Sep - 13 Sep United
19 Sep - 26 Sep Lufthansa direct

Also check the deals for one-way flights from Austin to Frankfurt in September.

Skyscanner

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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