There's no nonstop between Las Vegas and Nuremberg, which means the real decision on this route isn't which airline, but which European hub connection best sets up the second leg into a regional German airport. Business class from Las Vegas to Nuremberg realistically routes through Delta's partnership network via Amsterdam or Paris, American via London Heathrow or Frankfurt, or United through Frankfurt or Munich — all feeding into a short intra-European hop on the Star Alliance, SkyTeam, or Oneworld network, since Nuremberg's own airport is too small to support widebody service. Total journey time typically stretches past 14 hours once you factor in the connection, so I've learned to treat the transatlantic segment as the main event and the second leg as a formality best kept under two hours.
On the long-haul stretch, United's Polaris business class on its 767 or 777 fleet out of Frankfurt-bound routings gives you a proper flat-bed and decent Saks-curated bedding, while Delta's A330 or A350 One Suite product (depending on aircraft assignment) offers sliding doors on newer equipment — worth requesting specifically when booking through Amsterdam. American's Flagship Suite, where deployed on 777-300ERs into Heathrow, remains the most private of the three, though you'll want to confirm aircraft type before ticketing since American still mixes older business cabins into this corridor. My insider tip: build in a minimum 90-minute connection in Frankfurt or Munich rather than the airline-suggested 60, since immigration lines for non-EU passport holders can eat your buffer entirely, especially midmorning when several widebodies land in close succession.
Seasonality matters more than people assume here — January, February, March, October, and November consistently produce the softest fares, as Nuremberg's trade fair calendar and Franconian tourist season otherwise push demand upward. Given how fare classes on this three-airline, hub-dependent route can swing within days, I'd recommend setting continuous price alerts rather than checking manually, since the sweet spot in premium cabin award and revenue fares tends to open briefly before hub competition tightens it again.
