Business class flights from Seattle (SEA) to Reykjavík (KEF) start from $2,050 round-trip — up to 40% below published airline prices. The ~7.5 hours journey covers 3,611 miles, with 1 airlines offering lie-flat seats on this route. Best time to book: 3–6 months in advance for best fares.
SEA → KEF
Seattle to Reykjavík Business Class
From$2,050
Quick Verdict
Updated September 2026Seattle to Reykjavík business class fares start at $2,050 round-trip, with airlines including Delta Air Lines. The ~7.5 hours flight covers 3,611 miles. Peak season: June–August, December. Best value: January–March, November. Book through BestBusinessClass.com to save up to 40%.
From$2,050
Top AirlinesDelta Air Lines
Flight Time~7.5 hours
Best MonthsJanuary–March
Route Overview
Starting From
$2,050 round-trip
Flight Duration
~7.5 hours
Distance
3,611 miles
Best Value
May, Jun, Jul
Savings
Up to 60% off retail
Route Intelligence
Business Class from Seattle to Reykjavík
Business class fares between Seattle and Reykjavík run $2,050–$5,000 round-trip through BestBusinessClass.com, which is roughly 30-50% below the retail fares Icelandair and Delta publish directly for this 7.5-hour, 3,611-mile route. Delta currently operates the route with its Delta One Suite product, and that's the cabin most travelers on this run end up flying, since it's the only true lie-flat, closing-door option currently scheduled nonstop out of SEA to KEF.
Airlines & Cabin Experience
Reykjavík pulls travelers for reasons that go well beyond a layover stop on the way to Europe. The Blue Lagoon and newer geothermal spas like Sky Lagoon are obvious draws, but the bigger appeal for most fliers is how compact the whole country is — you can base yourself in the city for a few nights, then rent a car and be at waterfalls, black sand beaches, or glacier lagoons within a couple hours. Summer visitors get near-endless daylight for road-tripping the Ring Road or exploring the Golden Circle; winter travelers come chasing the northern lights and ice caves. Either way, Reykjavík itself has become a legitimate food and design city, not just a jumping-off point, with a compact downtown that's easy to walk between meals, bars, and museums.
Pricing & Best Time to Fly
On the hard product side, Delta One Suite is the standout: a fully enclosed suite with a sliding door, 1-2-1 configuration so every seat has direct aisle access, a proper lie-flat bed, and Delta's Tumi amenity kits stocked with skincare and the usual comfort items. For a westbound or eastbound overnight flight of this length, the closing door matters more than people expect — it's genuinely useful for getting real sleep rather than just reclining seat cushions. Service on Delta's transatlantic-style product tends to be more polished than what you'll find on many shorter regional business cabins, with a proper multi-course meal service, decent wine list, and amenities that hold up against international carriers charging far more.
Why Book Through BestBusinessClass.com
Pricing on Seattle to Reykjavík business class follows a fairly predictable seasonal curve. May through September is peak demand — long daylight hours, mild weather, and the best access to the interior highlands push fares toward the higher end of that $2,050–$5,000 range, especially if you're booking within 60 days of departure. Booking 3-4 months out for a summer date is the sweet spot: you get availability in Delta One Suite before it sells down, and consolidator fares in that window tend to sit closer to the lower half of the price range. Shoulder months (April, October) can bring meaningfully lower fares if your schedule is flexible, though daylight and weather trade-offs are real.
Travel Tips
As for the flight itself, this is a manageable medium-haul overnight in one direction and a daytime return depending on scheduling, so jet lag is minor compared to longer transatlantic runs — Iceland sits only 4 hours ahead of Pacific time, which makes adjusting on arrival easier than most European destinations. Pack layers regardless of season, since Reykjavík's weather changes fast, and if you're connecting onward into continental Europe, KEF's compact terminal makes for an easy transfer.
Airline Comparison
| Airline | Product | Seat Configuration | Alliance | Key Features | Review |
|---|---|---|---|---|---|
| Delta Air Lines | Delta One Suite | Suite with closing door, 1-2-1 | SkyTeam | Delta One Suite privacy, Tumi amenity kit | Read Review |
Best Time to Book
When Should You Book Seattle to Reykjavík Business Class?
Business class fares from Seattle to Reykjavík range from $2,050 to $5,000 round-trip, depending on season and advance booking. The best value is during January–March, November. Peak fares occur June–August, December. Booking 3–6 months ahead and choosing midweek departures typically yields 20–35% savings.
JanGood Value
FebGood Value
MarGood Value
AprAverage
MayBest Value
JunBest Value
JulBest Value
AugPeak Pricing
SepAverage
OctAverage
NovGood Value
DecPeak Pricing
💚 Best Value — $2,050–$2,788
💛 Good Value — $2,640–$3,525
🟠 Average — $3,230–$4,115
🔴 Peak Pricing — $3,820–$5,000
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The Business Class Standard
Lie-Flat Guarantee
We only sell true Business Class. 180° fully flat beds on all long-haul routes, ensuring you arrive rested.
Premium Lounges
Access the world's finest lounges. Enjoy pre-flight dining, showers, and quiet workspaces before you board.
Priority Service
Skip the queues. Your ticket includes fast-track security, priority boarding, and premium baggage handling.
The Business Class Standard
Lie-Flat Guarantee
We only sell true Business Class. 180° fully flat beds on all long-haul routes, ensuring you arrive rested.
Premium Lounges
Access the world's finest lounges. Enjoy pre-flight dining, showers, and quiet workspaces before you board.
Priority Service
Skip the queues. Your ticket includes fast-track security, priority boarding, and premium baggage handling.
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