[05/04/2017 @ 8:00 AM] Fare gone. Removing from deal list.
Delta and Air France have round-trip flights from Houston (HOU/IAH) to Luxembourg (LUX) for $424 or Zurich (ZRH) for $563, with a connection. Flights August to October. Depending on the destination and dates, the flight may be a Delta/Air France codeshare.
Note: Flights to Zurich from Hobby “HOU” may return better prices and routing than “IAH” on Priceline. Be sure to check both airports. Use “IAH” for Luxembourg searches.