Flight tickets from Reykjavik Keflavik to Seattle

Compare Reykjavik Keflavik to Seattle flight deals

Find the cheapest month or even day of the year to fly to Seattle

Book the best Seattle fare with no extra fees

Flight deals from Reykjavik Keflavik Airport 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 ₹ 61,235. Find the lowest prices on one-way and return tickets right here.

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 May.

Direct flights from Reykjavik Keflavik to Seattle

Reykjavik to Seattle: Flight information

The things to know before you go.
Cheapest flight found₹ 36,202
Cheapest month to flyMay
Average flight time8 hrs
Most popular airlineAlaska Airlines
Average flights per week92

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 ₹ 60,630. 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 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 March 2026, there are 48 flights per week flying from Reykjavik Keflavik to Seattle.
The cheapest month to fly from Reykjavik Keflavik to Seattle is usually November.
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 ₹ 60,630.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Reykjavik Keflavik Airport to Seattle on Monday, 16 November 2026.
Yes – the average flight time is 8 hours.
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 March, the average temperature is usually around 6°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. On average, that's the duration of a direct flight from Keflavik International Airport to Seattle.

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

  • The busiest route is from Keflavik International Airport (KEF) to Seattle-Tacoma International Airport (SEA). There are 13 services every week between these two airports. If you'd like to take off 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.

  • For hassle-free travel, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This will give you enough time to catch your KEF to Seattle flight.

  • If you're heading away during a bank holiday or another peak period, allow for even more time. A good general rule is two hours ahead of domestic flights and up to four hours before international departures. Security and check-in lines will be longer.

  • Begin your trip at KEF and travel nonstop to Seattle-Tacoma International Airport (SEA). That will be your arrival point when searching for Keflavik International Airport to Seattle tickets.

  • Icelandair is a popular airline that operates direct flights from Keflavik International Airport to Seattle.

  • A stopover is the ideal opportunity to break up your trip and possibly even explore a different city. When searching for flight tickets from KEF to Seattle, uncheck the 'Direct flights only' box to see where you can visit along the way. Top options include:

    • Vancouver International Airport (YVR)

    • Calgary International Airport (YYC)

    • Portland International Airport (PDX)

  • Located around 40 kilometres from the centre of Reykjavik, KEF can be reached in about 50 minutes by car (depending on traffic). Travelling on public transport will take roughly 1 hour 15 minutes.

  • Catching an early flight from Keflavik International Airport to Seattle? Avoid the hassle of rushing to the terminal (and sneak in some extra snooze time) by choosing one of these hotels near KEF:

  • When it comes to the on-time performance of Keflavik International Airport, 66.96% of flights arrive within the scheduled time frame.

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 ₹ 36,202. The cheapest price for a return flight is ₹ 60,630. 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)

  • Seattle-Tacoma International Airport (SEA) is around 23 kilometres from central Seattle. If you're grabbing a cab or a ride-share, the drive takes roughly 20 minutes.

  • It typically takes 55 minutes to get there by public transport.

  • If you have a late flight from Keflavik International Airport to Seattle, few things beat the convenience of staying near the terminal. Pick up your bags from the carousel and then be showered and snoozing soon after at one of these accommodation options near SEA:

  • Pick up a Seattle-Tacoma International Airport rental car and discover Seattle and beyond with your own wheels. Thrifty, Europcar and Budget are popular outlets you can book with here.

  • Lock in the best possible rate by reserving your vehicle from Seattle-Tacoma International Airport about one week before 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 touched down and you've navigated your way to arrivals, expect a drive of about 10 minutes.

  • The journey will take roughly 25 minutes on public transport.

  • Hang up the 'Do not disturb' sign and relax at a hotel near LKE. Here are a few options where you can put your feet up after your KEF to Seattle flight:

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 and 28ºC. Lock in your Keflavik International Airport to Seattle flight 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 and 11ºC.

More about Seattle

  • When it comes to looking for somewhere to lay your head, you'll find the top stays in Seattle right here. Browse these hotels as soon as you've locked in your flight from Keflavik International Airport to Seattle:

  • There are so many things to see and do in this city it can be tricky to work out where to start. LMN Architects, Greyhound: Bus Station and Boeing Radiation Effects Lab are top attractions which should be on any good Seattle itinerary.

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.

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