Direct (nonstop) flights from Reykjavik to Seattle
2 airlines fly nonstop from Keflavík International Airport (KEF) to Seattle Tacoma International (SEA). It's 3,621 miles (5,828 km), about 8h in the air. Operated by Alaska Airlines, Icelandair.
Alaska Airlines
Icelandair
Route data last updated: May 26, 2026
Airlines with non-stop flights
Alternative Routes
Other ways to fly from Reykjavik to Seattle with one stop · direct emits 554 kg CO₂ per passenger
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SEA → KEF: Flights from Seattle to ReykjavikOther direct flights from Reykjavik
Direct flights from Seattle (SEA)
Frequently Asked Questions
How long is the direct flight from Reykjavik to Seattle?
A nonstop flight from Reykjavik (KEF) to Seattle (SEA) takes approximately 8 hours. The distance is 3,621 miles (5,828 km).
Which airlines fly nonstop from Reykjavik to Seattle?
2 airlines: Alaska Airlines, Icelandair.
Is there a nonstop flight from Reykjavik to Seattle?
Yes. 2 airlines: Alaska Airlines, Icelandair.
How far is Reykjavik from Seattle?
The flight distance from Reykjavik to Seattle is 3,621 miles (5,828 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as London to New York.
What is the time difference between Reykjavik and Seattle?
Seattle is 7 hours behind Reykjavik. (Atlantic/Reykjavik vs America/Los_Angeles.)
Will I experience jet lag flying from Reykjavik to Seattle?
Probably — 7-hour time difference means moderate jet lag. Expect about 1 day of adjustment per hour of shift. Flying westward is generally easier to adjust to.
What type of aircraft flies from Reykjavik to Seattle?
At 8h, this route typically uses wide-body aircraft — Boeing 777, 787, or Airbus A330/A350. Varies by airline.
Do I need a visa to travel from Iceland to USA?
Depends on your passport. Check with the USA embassy or an official visa portal before booking — requirements change.
What is the carbon footprint of a flight from Reykjavik to Seattle?
Roughly 554 kg CO2 per passenger one-way. That's about the same as driving 2,770 km.
Is the return flight from Seattle to Reykjavik also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Reykjavik to Seattle?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. For long-haul, booking 2-3 months out tends to help. Use "Check Prices" above to compare.
How early should I arrive at Keflavík International Airport for this flight?
3 hours before departure for international flights. You need time for check-in, security, and immigration.