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

Return flights

01 Apr - 05 Apr	Aer Lingus
08 Apr - 15 Apr	Lufthansa	direct
03 Apr - 10 Apr	Lufthansa	direct
01 Apr - 05 Apr	Lufthansa	direct
28 Apr - 05 May	Lufthansa
13 Apr - 20 Apr	Lufthansa
23 Apr - 30 Apr	Lufthansa
18 Apr - 25 Apr	Lufthansa

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

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 St. Louis to Frankfurt in April from $1072

Return flights