Cheapest return flights from St. Louis (STL) to Frankfurt (FRA), September

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
02 Sep 09 Sep Condor
01 Sep 15 Sep Condor
02 Sep 08 Sep Condor
01 Sep 11 Sep Condor
02 Sep 11 Sep Condor
20 Sep 28 Sep Finnair
30 Sep 13 Oct Finnair
04 Sep 13 Sep British Airways
06 Sep 20 Sep Frontier Airlines
19 Sep 27 Sep Frontier Airlines
03 Sep 13 Sep Frontier Airlines
30 Sep 13 Oct Lufthansa
Direct Flight
25 Sep 16 Oct Frontier Airlines
25 Sep 16 Oct Lufthansa
Direct Flight
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deals for one-way flights from St. Louis to Frankfurt in September.

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Updated Jun 23, 2026.

About these fares

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