Cheapest return flights from San Francisco to Luxemburg in September from $712

AirHint found the following cheapest return flights from San Francisco (SFO) to Luxemburg (LUX) in September 2025 (see full year).

Return flights

11 Sep - 16 Sep Frontier Airlines
04 Sep - 11 Sep Hawaiian Airlines

Also check the deals for one-way flights from San Francisco to Luxemburg in September.

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.

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