Cheapest return flights from St. Louis to Frankfurt in December from 894€

AirHint found the following cheapest return flights from St. Louis (STL) to Frankfurt (FRA) in December 2025 (see full year).

Return flights

28 Dec - 21 Jan Aer Lingus
28 Dec - 27 Jan Aer Lingus
28 Dec - 11 Jan Aer Lingus
28 Dec - 31 Dec Aer Lingus
28 Dec - 04 Jan Aer Lingus
28 Dec - 29 Dec Aer Lingus
28 Dec - 21 Jan Lufthansa direct
28 Dec - 04 Jan Lufthansa direct
28 Dec - 11 Jan Lufthansa direct
28 Dec - 31 Dec Lufthansa direct

Also check the deals for one-way flights from St. Louis to Frankfurt in December.

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