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557 € Cheap Flights from Reykjavik Keflavik to Seattle

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 Airport to Seattle? If you want to travel next month, return fares start from 589 €. Find the lowest prices on one-way and return tickets right here.
Seattle.557 € per passenger.Departing Sat, 19 Dec, returning Sat, 2 Jan.Return flight with Icelandair.Outbound direct flight with Icelandair departs from Reykjavik Keflavik on Sat, 19 Dec, arriving in Seattle / Tacoma International.Inbound direct flight with Icelandair departs from Seattle / Tacoma International on Sat, 2 Jan, arriving in Reykjavik Keflavik.Price includes taxes and charges.From 557 €, select.
Seattle.560 € per passenger.Departing Sat, 5 Sep, returning Sat, 12 Sep.Return flight with Icelandair.Outbound direct flight with Icelandair departs from Reykjavik Keflavik on Sat, 5 Sep, arriving in Seattle / Tacoma International.Inbound direct flight with Icelandair departs from Seattle / Tacoma International on Sat, 12 Sep, arriving in Reykjavik Keflavik.Price includes taxes and charges.From 560 €, select.
Seattle.577 € per passenger.Departing Sat, 10 Oct, returning Sat, 17 Oct.Return flight with Icelandair.Outbound direct flight with Icelandair departs from Reykjavik Keflavik on Sat, 10 Oct, arriving in Seattle / Tacoma International.Inbound direct flight with Icelandair departs from Seattle / Tacoma International on Sat, 17 Oct, arriving in Reykjavik Keflavik.Price includes taxes and charges.From 577 €, select.
Seattle.578 € per passenger.Departing Sat, 24 Oct, returning Thu, 5 Nov.Return flight with Icelandair.Outbound direct flight with Icelandair departs from Reykjavik Keflavik on Sat, 24 Oct, arriving in Seattle / Tacoma International.Inbound direct flight with Icelandair departs from Seattle / Tacoma International on Thu, 5 Nov, arriving in Reykjavik Keflavik.Price includes taxes and charges.From 578 €, select.
Seattle.578 € per passenger.Departing Mon, 11 Jan, returning Mon, 25 Jan.Return flight with Icelandair.Outbound direct flight with Icelandair departs from Reykjavik Keflavik on Mon, 11 Jan, arriving in Seattle / Tacoma International.Inbound direct flight with Icelandair departs from Seattle / Tacoma International on Mon, 25 Jan, arriving in Reykjavik Keflavik.Price includes taxes and charges.From 578 €, select.
Seattle.579 € per passenger.Departing Fri, 6 Nov, returning Fri, 27 Nov.Return flight with Icelandair.Outbound direct flight with Icelandair departs from Reykjavik Keflavik on Fri, 6 Nov, arriving in Seattle / Tacoma International.Inbound direct flight with Icelandair departs from Seattle / Tacoma International on Fri, 27 Nov, arriving in Reykjavik Keflavik.Price includes taxes and charges.From 579 €, select.
Seattle.581 € per passenger.Departing Fri, 2 Apr, returning Sun, 11 Apr.Return flight with Icelandair.Outbound direct flight with Icelandair departs from Reykjavik Keflavik on Fri, 2 Apr, arriving in Seattle / Tacoma International.Inbound direct flight with Icelandair departs from Seattle / Tacoma International on Sun, 11 Apr, arriving in Reykjavik Keflavik.Price includes taxes and charges.From 581 €, select.
Seattle.583 € per passenger.Departing Mon, 21 Dec, returning Wed, 30 Dec.Return flight with Icelandair.Outbound direct flight with Icelandair departs from Reykjavik Keflavik on Mon, 21 Dec, arriving in Seattle / Tacoma International.Inbound direct flight with Icelandair departs from Seattle / Tacoma International on Wed, 30 Dec, arriving in Reykjavik Keflavik.Price includes taxes and charges.From 583 €, select.
Seattle.588 € per passenger.Departing Sat, 7 Nov, returning Tue, 15 Dec.Return flight with Icelandair.Outbound direct flight with Icelandair departs from Reykjavik Keflavik on Sat, 7 Nov, arriving in Seattle / Tacoma International.Inbound direct flight with Icelandair departs from Seattle / Tacoma International on Tue, 15 Dec, arriving in Reykjavik Keflavik.Price includes taxes and charges.From 588 €, select.
Seattle.589 € per passenger.Departing Mon, 27 Jul, returning Mon, 3 Aug.Return flight with Icelandair.Outbound direct flight with Icelandair departs from Reykjavik Keflavik on Mon, 27 Jul, arriving in Seattle / Tacoma International.Inbound direct flight with Icelandair departs from Seattle / Tacoma International on Mon, 3 Aug, arriving in Reykjavik Keflavik.Price includes taxes and charges.From 589 €, select.
Seattle.589 € per passenger.Departing Thu, 20 Aug, returning Thu, 27 Aug.Return flight with Icelandair.Outbound direct flight with Icelandair departs from Reykjavik Keflavik on Thu, 20 Aug, arriving in Seattle / Tacoma International.Inbound direct flight with Icelandair departs from Seattle / Tacoma International on Thu, 27 Aug, arriving in Reykjavik Keflavik.Price includes taxes and charges.From 589 €, select.
Seattle.590 € per passenger.Departing Thu, 23 Jul, returning Wed, 29 Jul.Return flight with Icelandair.Outbound direct flight with Icelandair departs from Reykjavik Keflavik on Thu, 23 Jul, arriving in Seattle / Tacoma International.Inbound direct flight with Icelandair departs from Seattle / Tacoma International on Wed, 29 Jul, arriving in Reykjavik Keflavik.Price includes taxes and charges.From 590 €, select.
Seattle.591 € per passenger.Departing Sat, 19 Jun, returning Wed, 30 Jun.Return flight with Icelandair.Outbound direct flight with Icelandair departs from Reykjavik Keflavik on Sat, 19 Jun, arriving in Seattle / Tacoma International.Inbound direct flight with Icelandair departs from Seattle / Tacoma International on Wed, 30 Jun, arriving in Reykjavik Keflavik.Price includes taxes and charges.From 591 €, select.
Seattle.591 € per passenger.Departing Mon, 31 Aug, returning Sun, 6 Sep.Return flight with Icelandair.Outbound direct flight with Icelandair departs from Reykjavik Keflavik on Mon, 31 Aug, arriving in Seattle / Tacoma International.Inbound direct flight with Icelandair departs from Seattle / Tacoma International on Sun, 6 Sep, arriving in Reykjavik Keflavik.Price includes taxes and charges.From 591 €, select.
Seattle.591 € per passenger.Departing Wed, 26 May, returning Thu, 10 Jun.Return flight with Icelandair.Outbound direct flight with Icelandair departs from Reykjavik Keflavik on Wed, 26 May, arriving in Seattle / Tacoma International.Inbound direct flight with Icelandair departs from Seattle / Tacoma International on Thu, 10 Jun, arriving in Reykjavik Keflavik.Price includes taxes and charges.From 591 €, select.
Seattle.591 € per passenger.Departing Wed, 2 Sep, returning Fri, 2 Oct.Return flight with Icelandair.Outbound direct flight with Icelandair departs from Reykjavik Keflavik on Wed, 2 Sep, arriving in Seattle / Tacoma International.Inbound direct flight with Icelandair departs from Seattle / Tacoma International on Fri, 2 Oct, arriving in Reykjavik Keflavik.Price includes taxes and charges.From 591 €, 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 September.
Jul
from 590 €
Aug
from 589 €
Sep
from 560 €
Oct
from 577 €
Nov
from 579 €
Dec
from 583 €
Jan
from 578 €
Feb
Find prices
Mar
Find prices
Apr
from 581 €
May
from 820 €
Jun
from 591 €

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.

Seattle Lake Union SPB

2km from central Seattle
Closest
Search flights

Seattle Boeing Fld

11km from central Seattle
from 909 €
Search flights

Seattle / Tacoma International

20km from central Seattle
Cheapest
from 557 €
Search flights

Paine Field

33km from central Seattle
Search flights

Reykjavik to Seattle: Flight information

The things to know before you go.
Cheapest flight found557 €
Cheapest month to flyDecember
Average flight time8 hrs, 1 min
Most popular airlineAlaska Airlines
Average flights per week90

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 557 €. 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.
8 hours and 1 minute is the average flight time from Reykjavik Keflavik to Seattle.
Alaska Airlines, Icelandair and Atlantic Airways fly direct from Reykjavik Keflavik to Seattle.
As of July 2026, there are 60 flights per week flying from Reykjavik Keflavik to Seattle.
The cheapest month to fly from Reykjavik Keflavik to Seattle is usually December.
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 557 €.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Reykjavik Keflavik Airport to Seattle on Saturday, 19 December 2026.
Yes – the average flight time is 8 hours and 1 minute.
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 July, the average temperature is usually around 17°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, Icelandair offers the cheapest flight tickets to Seattle.

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

  • Expect to be travelling for 7 hours 30 minutes. That's the average duration of a direct flight from Keflavik International Airport to Seattle.

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

  • The busiest route is from Keflavik International Airport (KEF) to Seattle-Tacoma International Airport (SEA). Take your pick of 13 weekly services between these two airports. If you want to get on your way as soon as possible, the earliest flight from KEF to SEA is the 10:30 Icelandair option. If you're planning to fly out later on, the final departure is at 19:45 with Icelandair.

  • To avoid missing your KEF to Seattle flight, leave enough time to navigate the airport and find your gate. Arriving two hours before international departures and one hour before domestic flights is the general rule.

  • During popular months like July, it's a good idea to get to the airport even earlier. Plan to arrive two hours before a domestic departure and four hours ahead of international flights whenever you're travelling during high season in general.

  • Direct Keflavik International Airport to Seattle tickets are available for booking. Seattle-Tacoma International Airport (SEA) is where you'll step off the plane.

  • Be on the lookout for deals with Icelandair. This airline operates direct flights from Keflavik International Airport to Seattle.

  • We make it easy to book plane tickets from KEF to Seattle with a stopover. To see the options, deselect 'Direct flights only.' Next, select a flight offering a stop long enough to see the sights of your chosen city. Well-traveled stopover hubs include:

    • Vancouver International Airport (YVR)

    • Calgary International Airport (YYC)

    • Portland International Airport (PDX)

  • Travelling from central Reykjavik to KEF takes around 1 hour 15 minutes on public transport. If you drive, ride-share or take a cab, you'll cover the 40 kilometres in 50 minutes or so, depending on traffic.

  • Catching an early flight from Keflavik International Airport to Seattle? Avoid rushing to the terminal (and catch some extra z's) by choosing one of these stays near KEF:

  • Of all flights departing from Keflavik International Airport, 66.96% land on schedule at their destination.

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

  • The lowest price we've seen for a one-way Keflavik International Airport to Seattle flight is 273 €. The cheapest price for a return flight is 557 €. Keep in mind fares can change due to availability at the time of booking.

  • To snag cheap flights from KEF to Seattle, reserve your trip two months ahead of your departure date.

  • Plan your trip for June. That's the best month for scoring a bargain on Keflavik International Airport to Seattle tickets. If you're flexible with your travel dates, use the 'Whole month' tool to access the cheapest price across each month.

  • Locking in a cheap flight from KEF to Seattle is easy with Price Alerts. Simply set up one of these automatic notifications and we'll let you know as soon as there's a better deal.

  • Pick your preferred departure and arrival times, number of stops and airlines with our filters. Then, sort the results for your flight from Keflavik International Airport to Seattle by 'Fastest,' 'Best' or 'Cheapest.'

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • The distance from Seattle-Tacoma International Airport (SEA) to central Seattle is roughly 23 kilometres. It'll take you around 20 minutes to reach the centre driving.

  • When travelling by public transport, expect a journey time of about 55 minutes.

  • The last thing you want is a lengthy journey to your hotel if you're landing late on a flight from Keflavik International Airport to Seattle. Book one of these accommodation options near SEA instead:

  • Begin your adventure by picking up a Seattle-Tacoma International Airport rental car. Grab a set of wheels from Thrifty, Europcar or Budget and experience the lesser-explored corners of Seattle and beyond.

  • To get the best deal, reserve your vehicle from Seattle-Tacoma International Airport around one week in advance of your flight from KEF to Seattle.

Lake Union Sea Plane Base Airport (LKE)

  • The centre of Seattle is located around 3 kilometres from Lake Union Sea Plane Base Airport (LKE). Once your flight from Keflavik International Airport to Seattle has hit the runway and you've made your way out of the airport, expect a drive of about 10 minutes.

  • If you choose to travel on public transport, you'll reach the centre in 25 minutes or so.

  • You'll find some comfortable places ready to welcome you near LKE. Tuck yourself in and get cosy after your KEF to Seattle flight at any of these well-located options:

Best time to go to Seattle

  • Before booking your flights from Keflavik International Airport to Seattle, consider which time of year is best for you. Peak season in Seattle offers a lively atmosphere and plenty to do, while low season means you'll get cheaper hotel deals and smaller crowds.

  • The warmest month in Seattle is August, with temperatures ranging between 12ºC (54ºF) and 28ºC (82ºF). Lock in your Keflavik International Airport to Seattle plane ticket then if you enjoy this type of weather.

  • If you like travelling in cooler conditions, look for a cheap ticket from KEF to Seattle in February when temperatures average between -1ºC (30ºF) and 11ºC (52ºF).

More about Seattle

  • Start your Seattle trip off on the right foot by choosing the perfect place to stay. After booking your flight from Keflavik International Airport to Seattle, browse our range of accommodation options including:

  • LMN Architects and Greyhound: Bus Station are just two of the top attractions to add to your Seattle travel itinerary. Keep the momentum going by heading to Boeing Radiation Effects Lab.

Explore more of United States

  • Seattle has loads to offer, but there are so many other corners of United States waiting to be explored. Around 241 kilometres south of Seattle, a visit to Portland will keep you busy. Check out popular attractions like Pioneer Courthouse Square, Portland Japanese Garden and Pittock Mansion.

  • Around 370 kilometres east of Seattle, Spokane is another essential stop in United States. No visit is complete without checking out Manito Park, Northwest Museum of Arts & Culture and Spokane Falls.

Plan the rest of your trip from Reykjavik to Seattle

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.