Cheapest return flights from St. Louis to Luxemburg in January from 422€

AirHint found the following cheapest return flights from St. Louis (STL) to Luxemburg (LUX) in January 2026 (see full year).

Return flights

19 Jan - 26 Jan Delta
11 Jan - 20 Jan Frontier Airlines

Also check the deals for one-way flights from St. Louis to Luxemburg in January.

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