Cheapest return flights from St. Louis to Frankfurt in May from $907

AirHint found the following cheapest return flights from St. Louis (STL) to Frankfurt (FRA) in May 2026 (see full year).

Return flights

01 May - 15 May Lufthansa direct
04 May - 11 May Lufthansa
26 May - 16 Jun Aer Lingus
19 May - 09 Jun Aer Lingus
27 May - 17 Jun Aer Lingus
09 May - 16 May Lufthansa
19 May - 26 May Lufthansa
14 May - 21 May Lufthansa
27 May - 17 Jun Lufthansa direct
29 May - 05 Jun Lufthansa direct
24 May - 31 May Lufthansa

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

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