There's a peculiar satisfaction in routing through history rather than around it, and that's precisely what connecting through Europe to reach Norway's oil capital delivers. Charleston to Stavanger business class doesn't exist as a nonstop product—no carrier flies this pairing directly—so the real question becomes which one-stop itinerary rewards the extra connection time. For most itineraries, that means Lufthansa via Frankfurt, KLM via Amsterdam, or SAS routing through Copenhagen or Oslo, with total journey time (including connection) typically running well beyond the ~9 hour flying time once you factor in the transatlantic leg and the shorter European hop up to SVG. My strong preference after many crossings is SAS through Copenhagen: their intra-Scandinavian network into Stavanger is dense, reliable, and forgiving of tight connections, and Copenhagen's compact layout makes even a 90-minute transfer feel unhurried.
The transatlantic segment is where you should spend your points or premium cash wisely. Lufthansa's Allegris business class, now rolling out on select long-haul routes, offers a genuine step up with closing doors on many configurations and more privacy than the older Lufthansa business product—worth chasing if your Frankfurt-originating flight has been upgraded to the new cabin. KLM's World Business Class on their 787 and A330 fleet remains a dependable, if less flashy, choice with lie-flat seats and Delta SkyTeam lounge access in Amsterdam that beats the gate-area alternatives in Frankfurt. SAS, meanwhile, leans on its A350 business class for the transatlantic stretch from the US gateway, pairing well with their efficient Scandinavian short-haul jets for the final push to Stavanger.
Insider tip: book the Stavanger-bound final leg as early morning departures out of Copenhagen or Oslo whenever possible—Norwegian coastal fog frequently disrupts afternoon SVG arrivals in autumn and winter, a headache that vanishes with the long daylight of May through September, also your best window for fare value on this corridor. Given how thin premium inventory runs into SVG, setting continuous fare alerts on this exact itinerary is the smartest move you can make before booking.