Delta is putting Iceland back on its route map. The airline will launch daily nonstop seasonal service between Boston Logan (BOS) and Keflavik International (KEF) starting April 12, 2027, running through October 30 — making Reykjavik Delta's 14th long-haul destination from Boston.

The route will be flown on a Boeing 757-200 with Premium Select recliner seats rather than Delta One lie-flat pods. That's a fair trade on a flight of roughly five hours, and premium-seated travellers still get a wider seat and extra legroom for the hop across the North Atlantic.

There's history here: Delta first served Iceland from JFK in 2011, and actually tried Boston–Keflavik once before, launching it in May 2021 before quietly dropping it that September. This time the route is framed as a long-haul commitment, covering not just peak summer but the shoulder seasons on either side — April to May and September to October.

That shoulder-season span is becoming the norm rather than the exception. Airlines increasingly stretch their summer schedules earlier and later as travellers chase smaller crowds, shorter queues and cheaper prices at Europe's busiest spots, and Iceland fits that pattern nicely — visiting in May or late September means a better shot at seeing the northern lights alongside long daylight hours.

The Reykjavik flight is one of four new Delta routes for 2027. Boston also gains Venice (from May 7), Detroit gets Athens (June 8), and Austin picks up Paris CDG (March 27) — Delta's first transatlantic route from the Texas capital.

Boston itself is the real battleground. Delta has been aggressively expanding there since the pandemic, going head-to-head with JetBlue for the title of New England's top carrier. JetBlue dominated Boston in 2019 with nearly 115,000 flights to Delta's roughly 80,000, but Delta edged ahead in 2023 and has held the lead since. For summer 2026 alone, Delta added Boston flights to Madrid and Nice plus extra Barcelona frequencies — and American and United, Delta's bigger national rivals, remain bit players in the market.

For travellers, this is good news on two fronts: a straightforward one-stop-free way from New England to Iceland (with easy onward connections via Icelandair's hub), and more competition on Boston's transatlantic routes, which tends to push fares down. If you've been eyeing a Golden Circle road trip or a Blue Lagoon stopover, spring and autumn 2027 just got easier to book.