Icelandair's decision to keep Reykjavík relevant as a transatlantic crossroads has quietly made the Las Vegas to Reykjavík business class experience one of the more interesting niche routes out of McCarran, even though no carrier flies it nonstop. There is no direct service on this city pair, so the practical answer for travelers is straightforward: business class from Las Vegas to Reykjavík requires a connection, typically routed through Seattle or another Delta or United gateway, or via Icelandair's own hub-and-spoke network through a secondary US city, with total journey times often stretching past ten hours once you factor in the layover. Delta One passengers connecting through Seattle or Minneapolis will find fully suited, lie-flat cabins on their long-haul equipment, while United's polaris product on its transatlantic-capable aircraft offers similar comfort if routing through Newark or Washington Dulles aligns better with your onward connection. Icelandair itself, meanwhile, operates a Saga Premium cabin rather than a true flat-bed business product, so purists chasing horizontal sleep should favor the Delta or United routings for the transatlantic leg and treat Icelandair as the more boutique, scenic option for the Iceland-specific segment.
Having threaded this connection more than a few times, I've learned that Seattle-Tacoma is the sleeper favorite hub here: security lines are shorter than Newark's, the Delta Sky Club footprint is generous, and the redeye timing into Keflavík lines up beautifully with Iceland's early summer light, letting you land already adjusted to near-midnight sun rather than fighting jet lag in a dark hotel room. If your itinerary allows any flexibility, build in a two-hour buffer in Seattle rather than the minimum connection time, since West Coast departures from Las Vegas can run late in the afternoon thunderstorm season, and missing a redeye out of SEA can unravel an entire Iceland arrival plan. Insider tip: request Icelandair's front-row Saga Premium seats if you're doing a same-day continuation onward into mainland Europe, since the cabin's proximity to the single forward door makes for a notably faster deplaning than the standard economy crush.
Because pricing on this three-airline, connection-dependent route can swing significantly by month and by which hub you're routed through, especially during the peak May-through-September window when Icelandic daylight and airfare demand both spike, it's worth setting continuous fare alerts rather than checking sporadically, so you can pounce the moment Delta, United, or Icelandair release a favorable business class fare.