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Cheap Flights from Reykjavik (KEF) to Seattle (SEAA)

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Compare Reykjavik Keflavik to Seattle flight deals

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Flight deals from Reykjavik Keflavik to Seattle

Looking for a cheap last-minute deal or the best return flight from Reykjavik Keflavik to Seattle? Find the lowest prices on one-way and return tickets right here.
Seattle.$904 per passenger.Departing Fri, 11 Jul, returning Fri, 25 Jul.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Reykjavik Keflavik on Fri, 11 Jul, arriving in Seattle / Tacoma International.Inbound indirect flight with WestJet, departs from Seattle / Tacoma International on Fri, 25 Jul, arriving in Reykjavik Keflavik.Price includes taxes and charges.From $904, select.
Seattle.$909 per passenger.Departing Sun, 1 Jun, returning Fri, 13 Jun.Return flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from Reykjavik Keflavik on Sun, 1 Jun, arriving in Seattle / Tacoma International.Inbound indirect flight with Scandinavian Airlines, departs from Seattle / Tacoma International on Fri, 13 Jun, arriving in Reykjavik Keflavik.Price includes taxes and charges.From $909, select.
Seattle.$969 per passenger.Departing Sun, 13 Jul, returning Wed, 13 Aug.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Reykjavik Keflavik on Sun, 13 Jul, arriving in Seattle / Tacoma International.Inbound indirect flight with WestJet, departs from Seattle / Tacoma International on Wed, 13 Aug, arriving in Reykjavik Keflavik.Price includes taxes and charges.From $969, select.
Seattle.$1,009 per passenger.Departing Tue, 21 Oct, returning Sat, 1 Nov.Return flight with Icelandair.Outbound direct flight with Icelandair departs from Reykjavik Keflavik on Tue, 21 Oct, arriving in Seattle / Tacoma International.Inbound direct flight with Icelandair departs from Seattle / Tacoma International on Sat, 1 Nov, arriving in Reykjavik Keflavik.Price includes taxes and charges.From $1,009, select.
Seattle.$1,028 per passenger.Departing Sat, 27 Dec, returning Wed, 14 Jan.Return flight with Icelandair.Outbound direct flight with Icelandair departs from Reykjavik Keflavik on Sat, 27 Dec, arriving in Seattle / Tacoma International.Inbound direct flight with Icelandair departs from Seattle / Tacoma International on Wed, 14 Jan, arriving in Reykjavik Keflavik.Price includes taxes and charges.From $1,028, select.
Seattle.$1,031 per passenger.Departing Wed, 6 Aug, returning Wed, 20 Aug.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Reykjavik Keflavik on Wed, 6 Aug, arriving in Seattle / Tacoma International.Inbound indirect flight with WestJet, departs from Seattle / Tacoma International on Wed, 20 Aug, arriving in Reykjavik Keflavik.Price includes taxes and charges.From $1,031, select.
Seattle.$1,057 per passenger.Departing Wed, 3 Sep, returning Wed, 17 Sep.Return flight with Icelandair.Outbound direct flight with Icelandair departs from Reykjavik Keflavik on Wed, 3 Sep, arriving in Seattle / Tacoma International.Inbound direct flight with Icelandair departs from Seattle / Tacoma International on Wed, 17 Sep, arriving in Reykjavik Keflavik.Price includes taxes and charges.From $1,057, select.
Seattle.$1,062 per passenger.Departing Fri, 13 Jun, returning Sun, 22 Jun.Return flight with Icelandair.Outbound direct flight with Icelandair departs from Reykjavik Keflavik on Fri, 13 Jun, arriving in Seattle / Tacoma International.Inbound direct flight with Icelandair departs from Seattle / Tacoma International on Sun, 22 Jun, arriving in Reykjavik Keflavik.Price includes taxes and charges.From $1,062, select.

Find the cheapest month to fly from Reykjavik Keflavik to Seattle

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Reykjavik Keflavik to Seattle flights are currently cheapest in July.
May
from $1,108
Jun
from $909
Jul
from $904
Aug
from $1,031
Sep
from $1,057
Oct
from $1,075
Nov
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Dec
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Jan
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Feb
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Mar
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Apr
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Direct flights from Reykjavik Keflavik to Seattle

Alternative Reykjavik Keflavik to Seattle routes

Looking for the cheapest, fastest or easiest route from Reykjavik Keflavik to Seattle? You could fly into the following airports instead.

Reykjavik to Seattle: Flight information

The things to know before you go.
Cheapest flight found$904
Cheapest month to flyJuly
Average flight time7 hrs, 55 mins
Most popular airlineIcelandair
Average flights per week72

Finding cheap flights from Reykjavik Keflavik to Seattle: Frequently asked questions

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Paine Field.
The best price we found for a return flight from Reykjavik Keflavik to Seattle is $904. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
7 hours and 55 minutes is the average flight time from Reykjavik Keflavik to Seattle.
Icelandair, Alaska Airlines and Atlantic Airways fly direct from Reykjavik Keflavik to Seattle.
As of May 2025, there are 72 flights per week flying from Reykjavik Keflavik to Seattle.
The cheapest month to fly from Reykjavik Keflavik to Seattle is usually May 2025.
If you're flying from Reykjavik Keflavik Airport, the cheapest airport near Seattle is Seattle / Tacoma International – which is 19.5 km away from the centre of Seattle. We've found flights into this airport from $904.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Reykjavik Keflavik Airport to Seattle on Friday, 11 July 2025.
Yes – the average flight time is 7 hours and 55 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seattle but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.
In May, the average temperature is usually around 12°C. August is typically the warmest month in Seattle, when it usually averages around 23°C. You can expect the least rain in July. The coldest month is December, with temperatures averaging 0°C. The rainiest month is November.
Currently, WestJet and Icelandair offer the cheapest flight tickets to Seattle.

Flying from Keflavik International Airport (KEF) to Seattle: what you need to know

  • Expect to be travelling for 7 hours 32 minutes. On average, that's the duration of a direct flight from Keflavik International Airport to Seattle.

  • Keflavik International Airport is located in Reykjavik. Operating on the UTC-7 timezone, Seattle is 7 hours behind Reykjavik.

  • With 12 weekly flights between the two airports, Keflavik International Airport (KEF) to Seattle-Tacoma International Airport (SEA) is the busiest route. Icelandair operates the earliest flight at 10:30. If you'd like to make the most of your day before taking off, the latest flight from KEF to SEA is with Icelandair at 19:45.

  • Leave enough time to get on your flight from KEF to Seattle. As a rule of thumb, arrive two hours before international departures and an hour ahead for domestic flights.

  • During popular months such as July, it's wise to get to the airport well in advance. Plan to arrive two hours before a domestic departure and four hours ahead of an international flight when you travel during high season in general.

  • You can get a direct flight from Keflavik International Airport to Seattle. Start your journey at KEF and arrive at Seattle-Tacoma International Airport (SEA).

  • Keep your eyes peeled for deals with Icelandair. This carrier has direct flights from Keflavik International Airport to Seattle.

  • Consider adding a stopover to potentially find a cheaper flight from KEF to Seattle. Simply uncheck 'Direct flights only' when browsing the departures. Take a break (and maybe save some cash) by stopping at one of these airports:

    • Calgary International Airport (YYC)

    • Portland International Airport (PDX)

    • Vancouver International Airport (YVR)

  • To visit United States for tourism purposes, you will require an ETA if you have a passport from Iceland. However, visa rules are subject to change and you may need further documentation depending on the duration and purpose of your trip. Always check the most up-to-date guidelines before you book your cheap ticket from Keflavik International Airport to Seattle.

  • KEF is around 48 kilometres from central Reykjavik. If you're driving, catching a cab or ride-sharing from the centre, it'll take you 49 minutes or so to get there, depending on traffic. If you're planning to take public transport, expect the trip time to be approximately 1 hour and 13 minutes.

  • Want a leisurely start to your travels? Stay near KEF. Whether you've booked an early flight from Keflavik International Airport to Seattle or just don't want to be rushed, these hotels are ideal:

How to find the cheapest flights from Keflavik International Airport (KEF) to Seattle

  • The lowest price we've seen for a one-way ticket from Keflavik International Airport to Seattle is $444. The cheapest price for a return flight is $904. Keep in mind fares may change due to availability at the time of booking.

  • Score cheap tickets from KEF to Seattle by booking at least 10 months ahead. According to our research, that's the sweet spot for bagging a bargain.

  • The cheapest month for tickets from Keflavik International Airport to Seattle is June. You can easily compare prices using the 'Whole month' tool to find the cheapest travel date.

  • Create a Price Alert for flight tickets from KEF to Seattle. You don't need to check every day to see if prices have fallen. We'll notify you as soon as there's a change in price.

  • Play around with the filters to find your ideal journey. To see the 'Cheapest,' 'Best' or 'Fastest' flights from Keflavik International Airport to Seattle, use the 'Sort by' tool. You can also filter results by departure and arrival times, airline, and journey duration.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport (SEA) to central Seattle is roughly 23 kilometres. It'll take you about 18 minutes to reach the centre driving.

  • It'll take around 54 minutes when travelling by public transport.

  • Consider booking a hotel near SEA if you're catching a late flight from Keflavik International Airport to Seattle. Settle into one of these accommodation options and skip the long transfer:

Lake Union Sea Plane Base Airport (LKE)

Best time to go to Seattle

  • July is the most popular month for flights from Keflavik International Airport to Seattle. To steer clear of the crowds, head for Seattle in May when things are quieter.

  • Book your flight from Keflavik International Airport to Seattle for August to experience the city during its warmest month. Expect temperatures to range from 12ºC to 28ºC.

  • If you like cooler conditions, search for a cheap flight from KEF to Seattle in February when temperatures average between -1ºC and 11ºC.

More about Seattle

  • Start your Seattle trip off on the right foot by choosing the perfect place to stay. Once you've booked your flight from Keflavik International Airport to Seattle, browse our selection of hotels including:

  • Gas Works - Lake View Point and Queen Anne Bowl Playfield are just two of the major attractions to add to your Seattle must-do list. Keep the adventure rolling by checking out LMN Architects.

Complete your Seattle trip with a car rental

  • Choose one of our car rentals in Seattle and see the sights on your own terms. Easily compare companies in one go to find the ideal ride once you've booked your hotel and cheap flights from Keflavik International Airport to Seattle.

Plan the rest of your trip from Reykjavik to Seattle

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.