Albany's regional airport doesn't offer nonstop service to Scandinavia, so anyone booking business class from Albany to Gothenburg is really booking a two-leg journey routed through a major European or transatlantic hub — and the choice of hub matters enormously to how the flight feels. My preferred routing runs through Newark or JFK on United's partner Lufthansa, connecting via Frankfurt or Munich, where you can experience Lufthansa's newer Allegris business class on the transatlantic sector if your aircraft assignment cooperates (check this before booking, as Allegris rollout remains uneven). SAS, as Scandinavia's flag carrier, offers a compelling alternative via Copenhagen, and I've found their A330/A350 business cabins consistently comfortable with genuinely Scandinavian service warmth — quiet, efficient, unfussy. KLM through Amsterdam rounds out the trio, and their World Business Class product on the 787 or A330 is a reliable workhorse choice, particularly if your Albany connection routes you through JFK.
Having flown all three combinations repeatedly, my strong recommendation is the SAS-via-Copenhagen path whenever schedules align — Gothenburg is essentially SAS's backyard, and their connection banks at Copenhagen are tight and well-organized, with minimal risk of the kind of long layovers that plague Frankfurt or Amsterdam during peak summer congestion. An insider tip few travelers know: SAS occasionally releases better award and revenue business fares on the Copenhagen-Gothenburg short-hop when booked as a separate SAS Plus ticket rather than through-ticketed, especially if your transatlantic segment is on a partner airline — worth pricing both ways before committing.
Late spring through early fall — May through September — is unquestionably the sweet spot for this itinerary, both for Gothenburg's brief but glorious archipelago weather and for softer transatlantic business fares before the autumn corporate travel surge hits Frankfurt and Amsterdam hubs hardest. Given how much routing and fare variability exists on this particular US-to-Sweden corridor, I'd strongly encourage setting up automated fare alerts rather than checking manually — the sweet spots on this route tend to appear briefly and without much warning.