Cheapest one-way flights from St. Louis to Frankfurt in March from $304

AirHint found the following cheapest one-way flights from St. Louis (STL) to Frankfurt (FRA) in March 2026 (see full year).

One-Way flights

19 Mar Frontier Airlines
04 Mar Frontier Airlines
20 Mar Frontier Airlines
06 Mar Frontier Airlines
13 Mar Frontier Airlines
02 Mar Iberia
03 Mar Iberia
04 Mar Lufthansa direct
20 Mar Lufthansa direct
06 Mar Lufthansa direct

Also check the deals for return flights from St. Louis to Frankfurt in March.

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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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