Cheapest return flights from St. Louis to Frankfurt in April from 657€

Best time to book flights for St. Louis (STL) to Frankfurt (FRA) flights at AirHint

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

Return flights

11 Apr - 25 Apr Frontier Airlines
04 Apr - 18 Apr Frontier Airlines
04 Apr - 21 Apr Frontier Airlines
02 Apr - 09 Apr Lufthansa
11 Apr - 02 May Frontier Airlines
11 Apr - 27 Apr Frontier Airlines
16 Apr - 23 Apr Lufthansa
30 Apr - 07 May Lufthansa
22 Apr - 29 Apr Delta
08 Apr - 15 Apr Delta
18 Apr - 25 Apr Lufthansa direct
20 Apr - 27 Apr Lufthansa direct
24 Apr - 01 May United
28 Apr - 05 May United
11 Apr - 02 May Lufthansa direct
26 Apr - 03 May Delta

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

Skyscanner

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.

Book a cheap hotel in Frankfurt

Cheap car rent in Frankfurt