After two decades of routing clients and myself through this corridor, I can say plainly: there is no nonstop option for business class from West Palm Beach to Nuremberg, and anyone promising otherwise is misinformed. The practical truth is that every itinerary funnels through a major East Coast or Midwest gateway before crossing the Atlantic, then connects again in Frankfurt or Munich for the short hop into Nuremberg's compact airport. American, Delta, and United all serve this market, and each routes you through their own hub logic — American via Charlotte or Philadelphia into a European partner, Delta via JFK or Atlanta with its own transatlantic metal, and United via Newark or Washington Dulles, often with the smoothest connection given its Star Alliance ties to Lufthansa's German network.
My preference on this specific corridor is United's Polaris business class on the Newark-to-Munich or Newark-to-Frankfurt long-haul segment, followed by a Lufthansa regional jet finishing into Nuremberg. Polaris seats, with their direct-aisle access and Saks Fifth Avenue-curated bedding, make the nine-and-a-half-hour psychological haul from South Florida feel considerably shorter once you factor in the connection. Delta's option, often routed through JFK with Delta One suites featuring sliding privacy doors, is a strong alternative when fares dip, particularly on the A330-900 or A350 equipment before the European handoff. American's transatlantic partners occasionally offer Flagship Suite service out of Philadelphia, though the connection logistics into Nuremberg can require an overnight in Munich or Frankfurt if schedules don't align — something worth confirming before booking.
One insider habit I've developed: build in a four-hour minimum connection window in Munich rather than Frankfurt, since Munich's layout makes the transfer to the Nuremberg-bound regional flight far less stressful, especially post-immigration during winter schedule changes. January through March and again in October and November consistently reward patient shoppers with softer business class fares, as leisure demand into Bavaria drops outside Christmas markets and Oktoberfest. Given how frequently these fares fluctuate on a three-carrier route like this, setting up automated fare alerts is the smartest way to catch a favorable pricing window before it closes.