Bergen doesn't get the glossy attention that Oslo does among American travelers, which is precisely why the routing puzzle deserves a savvy approach. There is no nonstop option, so business class from Columbus to Bergen means transiting through one of three excellent European gateways: Frankfurt via Lufthansa, Amsterdam via KLM, or Copenhagen via SAS, with Copenhagen offering the most natural onward connection given SAS's dense Scandinavian network. Total journey time typically runs in the range of 11-13 hours including the connection, against roughly 8 hours of actual flying time. Lufthansa's long-haul aircraft on this corridor increasingly feature the new Allegris business class suite, with sliding doors and configurable seating, though older 747-8 and A340 configurations with the traditional lie-flat seat still appear depending on aircraft rotation—worth checking your specific equipment before booking. KLM flies World Business Class on its 787 and A330 fleet out of Detroit or Atlanta connections from Columbus, a reliable if unglamorous product, while SAS's A350 business class, with direct aisle access on every seat, makes the Copenhagen routing my personal favorite for this itinerary.
Having routed through all three hubs multiple times, I'd steer travelers toward Copenhagen when schedules allow—SAS's connection times to Bergen are generous enough to clear immigration comfortably, and their lounge in Copenhagen is a genuinely relaxing place to decompress before the short domestic hop. Frankfurt works well too, but arrive with extra buffer during winter months when de-icing delays are common; Lufthansa's Terminal 1 can turn a tight 75-minute connection into a sprint. One insider tip: SAS occasionally releases business class award space on the Copenhagen-Bergen short-hop that isn't bookable as a standalone ticket but opens up when booked as part of the transatlantic itinerary, effectively upgrading what would otherwise be a economy regional hop.
Late spring through early autumn—May through September—brings not just Bergen's best weather (relatively speaking) but also more competitive business class fares, as Scandinavian leisure demand shifts capacity and pricing dynamics across all three carriers. Given how much these fares fluctuate week to week on a routing this indirect, setting up automated fare alerts is the smartest way to catch a business class fare worth booking before it disappears.