Business Class from Detroit to Nantes
Detroit to Nantes business class fares run $2,000–$5,300 round-trip through BestBusinessClass.com, and since there's no nonstop service on this 3,842-mile route, every itinerary connects through a major hub like Paris, Amsterdam, or Detroit's own Delta gateway before the short hop down to western France. Flight time works out to roughly 9 hours of total air time plus a connection, making this a true medium-haul journey that still rewards a proper lie-flat seat, especially on the transatlantic leg where the overnight eastbound schedule means you're racing the sunrise.
