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Wondering how long to fly from Seattle to Reykjavik? A nonstop flight usually takes around 7 hrs 25 mins to 7 hrs 40 mins. Flight duration can vary depending on weather conditions, wind direction, aircraft type, and the selected route.
Flights from Seattle-Tacoma International Airport (SEA) to Keflavik International Airport (KEF) are generally fastest when booked nonstop. One-stop flights through cities such as Vancouver, Toronto, or Calgary can take around 10 to 15 hours or more.
Reykjavik is usually 7 to 8 hours ahead of Seattle, depending on the time of year.
For the quickest journey, compare nonstop Seattle to Reykjavik flights, departure times, airfares, baggage allowances, and airline services before booking.
The average Seattle to Reykjavik flight time depends on the departure airport, airline, aircraft type, weather, wind direction, flight path, and whether the journey is nonstop or includes a connection. Most nonstop flights from Seattle-Tacoma International Airport (SEA) to Keflavík International Airport (KEF) take approximately 7 hr 25 mins to 8 hr. Icelandair lists an average nonstop journey of about 7 hours 25 minutes, while Seattle currently offers nonstop services to Reykjavik.
Keflavík International Airport (KEF) is the main international airport serving Reykjavik. Reykjavik Airport (RKV) mainly handles domestic flights and should not normally be selected as the arrival airport for a Seattle–Reykjavik international journey. Paine Field (PAE) and Bellingham International Airport (BLI) may be considered optional departure airports, but they do not provide regular nonstop flights to Keflavík and usually require additional connections or positioning flights.
| Departure Airport | Arrival Airport | Estimated Flight Time | Travel Tip |
|---|---|---|---|
| Seattle-Tacoma International Airport (SEA) | Keflavík International Airport (KEF) | Around 7 hr 25 mins – 8 hr nonstop | Best option for most travellers, with the most convenient nonstop services to Iceland. |
| Seattle-Tacoma International Airport (SEA) | Keflavík International Airport (KEF) | Usually around 11 hr – 18 hr+ with one or more stops | Consider a connecting flight when nonstop fares or travel dates are less suitable. Compare the total journey time before booking. |
For the quickest journey, a nonstop flight from Seattle-Tacoma International Airport (SEA) to Keflavík International Airport (KEF) is usually the most practical option. Paine Field (PAE) and Bellingham International Airport (BLI) are optional departure choices, but additional connections can make the overall journey considerably longer
Nonstop flights from Seattle to Reykjavik run about 7 hours 35 minutes. Icelandair operates direct service on this route.
Connecting flights through hub cities add travel time. Routes through major airports typically take 10 to 13 hours including layover.
Compare both nonstop and connecting options when booking. Sometimes the longer itineraries cost $150 to $300 less than direct flights.
Reykjavik is 8 hours ahead of Seattle. Plan your arrival time carefully to minimize jet lag impact.
Eastbound flights typically depart in the afternoon or evening and arrive the next day. Westbound return flights often land the same calendar day you depart.
Book 6 to 8 weeks ahead for the best fares. Shoulder season months often offer better deals than peak travel periods.
Planning beyond this route? Explore more flight times, distances, and travel durations using our tools below. Start with our Flight Time Calculator to estimate journey times worldwide, or browse average travel times from your departure city using the Seattle Flight Times.
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