Trondheim rarely appears on American business travelers' radar, which is precisely why the routing deserves closer scrutiny. There is no nonstop option: business class from Boston to Trondheim requires a connection, typically through Copenhagen with SAS, Amsterdam with KLM, or Frankfurt/Munich with Lufthansa, and each hub delivers a distinctly different experience. SAS is the natural choice given its Scandinavian focus, offering Airbus A330 or A350 business class with fully flat seats and access to its Copenhagen lounge before the short hop up to Trondheim's compact Værnes airport. I've routed through all three hubs over the years, and Copenhagen consistently offers the fastest, least stressful connection into Norway.
KLM's Amsterdam routing is worth considering if you want a wider choice of transatlantic departure times from Boston, with their World Business Class product on the 787 or A330 delivering solid comfort and Schiphol's efficient transfer process, though the KLM Cityhopper leg onward to Trondheim reverts to a regional aircraft without a dedicated business cabin. Lufthansa via Frankfurt or Munich brings its Allegris business class on select long-haul aircraft, a meaningful upgrade in privacy and seat design over older Lufthansa configurations, but confirm your specific aircraft type before booking since Allegris rollout remains uneven across the fleet. My insider tip: book the earliest Boston departure available, since it typically aligns with same-day connections through Copenhagen or Amsterdam into Trondheim, avoiding an overnight layover that these Nordic-bound itineraries often otherwise force.
Norway's brief but glorious summer, roughly May through September, is both the best time to visit Trondheim and, conveniently, when business class fares on this corridor tend to soften as airlines add capacity for Scandinavian tourism demand. Because pricing across three carriers and three different hub strategies fluctuates constantly, setting up dedicated fare alerts for Boston-Trondheim business class is the smartest way to catch these seasonal dips before they disappear.