Legoland's home airport isn't exactly a hub anyone associates with premium travel, which is precisely why routing strategy matters so much here. There's no nonstop option, so business class from Buffalo to Billund inevitably means a connection, and the honest answer to which one works best depends on which European carrier's product you're chasing: SAS through Copenhagen, Lufthansa through Frankfurt or Munich, or KLM through Amsterdam. My money consistently goes to the SAS routing via Copenhagen, since it keeps you within the same alliance ecosystem and the CPH–BLL hop is a quick regional shuttle that barely disrupts your jet lag recovery, landing you close enough to drive into Billund in under an hour if the connection timing doesn't quite work.
For the transatlantic leg, Lufthansa's rollout of Allegris on select long-haul aircraft has been the most talked-about product shift in years, and if you can snag one of the equipped 787s or 747-8s out of Frankfurt or Munich, the suite privacy and mattress-quality bedding make the eight-hour BUF-to-Europe stretch genuinely restful. KLM's World Business Class on its 787 and A330 fleet remains a dependable, if less flashy, choice with a lie-flat seat and Delft-blue Dutch hospitality that regulars appreciate. SAS's A350 business class, running on their core North American routes into Copenhagen, offers a sleek Scandinavian minimalism with excellent noise insulation — my preferred combination for connecting onward to Jutland.
Insider tip: book the CPH–BLL segment as far in advance as possible even if your transatlantic ticket is flexible, since SAS often prices that short hop separately and availability in business tightens fast during Legoland's summer high season. May through September brings the best fare windows for this whole itinerary, largely because Scandinavian leisure demand peaks later than the deal window closes. Given how these fares fluctuate week to week across three different carriers and routings, setting up automated fare alerts is genuinely the smartest way to catch a premium seat at the right moment.
