Trondheim rarely appears on the radar of American business travelers, which is precisely why those who master this routing gain an edge. There's no nonstop option, so business class from Buffalo to Trondheim requires a strategic connection through Frankfurt, Amsterdam, or Copenhagen — and after dozens of these itineraries, I can say definitively that Amsterdam via KLM is the most efficient pairing, with a KLM World Business Class hop on the transatlantic leg followed by a short SAS or KLM regional connector into Trondheim's compact TRD airport, which clears passengers in minutes even during peak summer arrivals. Buffalo Niagara International doesn't offer direct premium check-in, so build in extra time at BUF and lean on TSA PreCheck if you have it, since the terminal's single security line moves slower than travelers expect.
For the transatlantic segment, Lufthansa's Frankfurt connection is worth considering if your dates align with their newer Allegris cabin rollout, which brings suite-style doors and more privacy than the standard long-haul business product — though availability on this specific configuration remains inconsistent, so I always confirm aircraft type before booking rather than trusting the schedule alone. SAS, meanwhile, offers the most geographically logical routing through Copenhagen, and their Business class on the A350 or A321LR includes Nordic-inflected service and a lie-flat seat that feels particularly well-suited to the short hop up to Trondheim afterward, letting you arrive in Norway already adjusted to the rhythm of the region. My insider tip: book the Copenhagen–Trondheim segment as a separate short-haul business fare when award space is tight on the through-ticket, since SAS often releases these seats independently even when the transatlantic leg shows saturated.
Summer — specifically May through September — is when this corridor performs best, both for weather in Trondheim and for premium award availability, as Scandinavian carriers open up more business inventory to capture the Norwegian fjord tourism season. Given how fluid pricing and availability are on this three-airline, one-stop route, setting up fare alerts is the smartest move you can make before committing to dates.
