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SEA - KEF

$311 Find cheap flights from Seattle to Reykjavik-Keflavik Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Reykjavik departing on 7/29. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sat 6/15
Sat 6/22

Search hundreds of travel sites at once for deals on flights to Reykjavik-Keflavik Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Reykjavik, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Reykjavik, as well as popular online travel agencies
In the last 7 days travelers have searched 42,211,976 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Seattle to Reykjavik (SEA-KEF)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Reykjavik that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
12:30 am - 8:30 amSEA-KEF
25h 00m1 stop
10:00 am - 10:04 amKEF-SEA
31h 04m2 stops
Sat, Jul 13 - Wed, Jul 31
6:00 am - 6:20 amSEA-KEF
17h 20m1 stop
8:50 am - 8:28 pmKEF-SEA
18h 38m1 stop
$573Delta
Find Deal
Thu, Jul 18 - Mon, Jul 22
10:40 am - 8:35 amSEA-KEF
14h 55m2 stops
10:00 am - 10:04 amKEF-SEA
31h 04m2 stops
$584Air Canada
Find Deal
Tue, Jul 16 - Sun, Jul 21
7:40 am - 8:35 amSEA-KEF
17h 55m1 stop
10:00 am - 10:20 pmKEF-SEA
19h 20m2 stops
$589Air Canada
Find Deal
Tue, Jul 9 - Tue, Jul 16
12:30 am - 7:00 amSEA-KEF
23h 30m2 stops
10:00 am - 4:08 pmKEF-SEA
37h 08m2 stops
$591United Airlines
Find Deal
Sun, Aug 4 - Mon, Aug 12
12:30 am - 7:00 amSEA-KEF
23h 30m2 stops
12:00 pm - 10:22 pmKEF-SEA
17h 22m1 stop
$608United Airlines
Find Deal
Tue, Jul 30 - Wed, Aug 14
11:15 am - 9:30 amSEA-KEF
15h 15m1 stop
11:25 am - 7:30 pmKEF-SEA
15h 05m1 stop
$612KLM
Find Deal
Wed, Jun 12 - Wed, Jun 26
7:10 am - 9:30 amSEA-KEF
19h 20m1 stop
11:25 am - 10:03 amKEF-SEA
29h 38m2 stops
$625KLM
Find Deal
Thu, Jun 13 - Thu, Jun 20
6:55 pm - 9:15 amSEA-KEF
7h 20mnonstop
7:45 pm - 8:35 pmKEF-SEA
7h 50mnonstop
$746Icelandair
Find Deal
Tue, Aug 13 - Tue, Aug 27
11:00 pm - 1:25 pmSEA-KEF
7h 25mnonstop
10:30 am - 11:20 amKEF-SEA
7h 50mnonstop
$747Icelandair
Find Deal
Mon, Aug 5 - Mon, Aug 12

Flights from Seattle to Reykjavik - Travel Insights & Trends

Get data-powered insights and trends into flights from Seattle to Reykjavik to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Seattle to Reykjavik-Keflavik Airport?

The average price of all flights from Seattle to Reykjavik Keflavik Intl Airport clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Seattle to Reykjavik-Keflavik Airport, look for departures on Tuesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Reykjavik-Keflavik Airport, Tuesday is the cheapest day to fly and Thursday is the most expensive.

What is the cheapest month to fly from Seattle to Reykjavik Keflavik Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Seattle to Reykjavik Keflavik Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Seattle to Reykjavik Keflavik Intl Airport is January, where tickets cost $602 on average. On the other hand, the most expensive months are September and December, where the average cost of tickets is $1,017 and $862 respectively.

How far in advance should I book a flight from Seattle to Reykjavik Keflavik Intl Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Seattle to Reykjavik Keflavik Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Seattle to Reykjavik Keflavik Intl Airport, you should book around 2 days before departure. For the absolute cheapest price, our data suggests you should book 31 days before departure.

Which airlines provide the cheapest flights from Seattle to Reykjavik-Keflavik Airport?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 3 days, WestJet offered the best one-way deal for that route, at $315. KAYAK users also found Seattle to Reykjavik-Keflavik Airport round-trip flights on Delta from $573 and on Air Canada from $584.

Which airlines fly non-stop between Seattle and Reykjavik Keflavik Intl Airport?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Seattle to Reykjavik Keflavik Intl Airport.
There is just one airline that flies from Seattle to Reykjavik Keflavik Intl Airport direct and that is Icelandair. The best one-way deal found from Icelandair for the route is $507.

How many flights are there between Seattle and Reykjavik Keflavik Intl Airport per day?

Each day, there are 3 nonstop flights that take off from Seattle and land in Reykjavik Keflavik Intl Airport, with an average flight time of 7h 23m. The most common departure time is 6:00 pm and most flights take off in the afternoon. Each week, there are 21 flights and there are the same amount of flights each day 3.

Which cabin class options are there for flights between Seattle and Reykjavik Keflavik Intl Airport?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 3 cabin class options for the route. These are Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Seattle to Reykjavik-Keflavik Airport take?

The average nonstop flight takes 7h 20m, covering a distance of 3,608 miles.

What’s the earliest departure time from Seattle to Reykjavik-Keflavik Airport?

Early birds can take the earliest flight from Seattle at 3:50 pm and will be landing in Reykjavik Keflavik Intl Airport at 6:15 am.

What’s the latest departure time from Seattle to Reykjavik-Keflavik Airport?

If you prefer to fly at night, the latest flight from Seattle to Reykjavik Keflavik Intl Airport jets off at 11:00 pm and lands at 1:25 pm.

Good to know

Low season

December

High season

August

Cheapest flight

$311
Best time to beat the crowds but there is an average 9% increase in price.
Most popular time to fly with an average 1% increase in price.
Flight from Seattle to Reykjavik-Keflavik Airport

When to book flights from Seattle to Reykjavik

Are your dates flexible? Find out the best times to travel from Seattle to Reykjavik based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Seattle to Reykjavik-Keflavik Airport flights

  • What is the cheapest flight from Seattle to Reykjavik Keflavik Intl Airport?

    In the last 3 days, the lowest price for a flight from Seattle to Reykjavik Keflavik Intl Airport was $311 for a one-way ticket and $555 for a round-trip.

  • Do I need a passport to fly between Seattle and Reykjavik-Keflavik Airport?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Seattle and on arrival in Reykjavik-Keflavik Airport.

  • Which airports will I be using when flying from Seattle to Reykjavik-Keflavik Airport?

    When flying out of Seattle you will be using Seattle/Tacoma Intl. You will be landing at Reykjavik-Keflavik Airport, also known as Reykjavik Keflavik Intl.

  • Which airlines offer Wi-Fi service onboard planes from Seattle to Reykjavik-Keflavik Airport?

    All the following airlines offer inflight Wi-Fi service on the Seattle to Reykjavik-Keflavik Airport flight route: Lufthansa, United Airlines, Delta, Air France, American Airlines, and Virgin Atlantic.

  • Which aircraft models fly most regularly from Seattle to Reykjavik-Keflavik Airport?

    The Boeing 787-9 Dreamliner is the aircraft model that flies most regularly on the Seattle to Reykjavik-Keflavik Airport flight route.

  • Which airline alliances offer flights from Seattle to Reykjavik-Keflavik Airport?

    oneworld is the only airline alliance operating flights between Seattle and Reykjavik-Keflavik Airport.

  • On which days can I fly direct from Seattle to Reykjavik-Keflavik Airport?

    There are nonstop flights from Seattle to Reykjavik-Keflavik Airport on a daily basis.

  • Which is the best airline for flights from Seattle to Reykjavik, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Seattle to Reykjavik are Delta and United Airlines. With an average price for the route of $537 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $798 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Seattle to Reykjavik-Keflavik Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Reykjavik-Keflavik Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Reykjavik-Keflavik Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Reykjavik-Keflavik Airport from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Reykjavik-Keflavik Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Reykjavik-Keflavik Airport with an airline and back to Seattle with another airline. Booking your flights between Seattle and KEF can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Reykjavik-Keflavik Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Reykjavik-Keflavik Airport from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Seattle to Reykjavik Keflavik Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $399 or less one-way and $640 or less round-trip.

Prefer to fly non-stop from Seattle to Reykjavik-Keflavik Airport?

Find which airlines fly direct from Seattle/Tacoma Intl to Keflavik Intl, which days they fly and book direct flights.

Nonstop departures

Seattle/Tacoma Intl to Reykjavik Keflavik Intl

Monday

Alaska Airlines, Icelandair

Alaska Airlines, Icelandair

Tuesday

Alaska Airlines, Icelandair, airBaltic

Alaska Airlines, Icelandair, +1 more

Wednesday

Alaska Airlines, Icelandair

Alaska Airlines, Icelandair

Thursday

Alaska Airlines, Icelandair, airBaltic

Alaska Airlines, Icelandair, +1 more

Friday

Alaska Airlines, Icelandair, airBaltic

Alaska Airlines, Icelandair, +1 more

Saturday

Alaska Airlines, Icelandair

Alaska Airlines, Icelandair

Sunday

Alaska Airlines, Icelandair, airBaltic

Alaska Airlines, Icelandair, +1 more

See more direct flights

Nonstop returns

Reykjavik Keflavik Intl to Seattle/Tacoma Intl

Monday

Alaska Airlines, Icelandair, airBaltic

Alaska Airlines, Icelandair, +1 more

Tuesday

Alaska Airlines, Icelandair

Alaska Airlines, Icelandair

Wednesday

Alaska Airlines, Icelandair, airBaltic

Alaska Airlines, Icelandair, +1 more

Thursday

Alaska Airlines, Icelandair

Alaska Airlines, Icelandair

Friday

Alaska Airlines, Icelandair, airBaltic

Alaska Airlines, Icelandair, +1 more

Saturday

Alaska Airlines, Icelandair, airBaltic

Alaska Airlines, Icelandair, +1 more

Sunday

Alaska Airlines, Icelandair

Alaska Airlines, Icelandair

See more direct flights
See more direct flights

Top 4 airlines serving from Seattle to Reykjavik

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Reykjavik. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Reykjavik? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10673 reviews
7.9Comfort
8.2Boarding
7.4Food
8.0Entertainment
8.6Crew
Airline reviews

The plane from SNA wouldn’t start after 5 tries. The team gave me an option of flying direct from LAX and giving me a Lyft ride there! Perfect!

10.0 ExcellentSash, May 2024SEA - HNL
Read more about Delta reviews

The plane from SNA wouldn’t start after 5 tries. The team gave me an option of flying direct from LAX and giving me a Lyft ride there! Perfect!

Had a broken tray in business class. Crew just shrugged it off.

Everything was great except for the seat. The backrest would not stay in the upright position.

public website still broken for years randomly blocking browsers with privacy options active after loading a page maybe once. check-in on laptop was almost impossible but eventually randomly worked. had to print pass at airport since couldn't get back in to load digital pass on mobile firefox or chrome. red eye flight so smooth onboarding, plenty of room to spread out, easy offboarding. onboard wifi instructions mention vpn can cause problems connecting but fails to also mention private dns. no printed or built in menu list, seems weird to require personal device to point at qr code link for menu which does not even allow direct ordering. people with health condition risk related dietary restrictions trying to avoid for example cholesterol and sugar are left guessing what they can order either way without nutritional info highlights (cranberry juice was minute maid cocktail with as much suger as typical can of soda). tap to pay wasn't working and always seems sketchy to manually enter card info. good movie variety, so limited tv was okay.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Mi primera conexión se retrasó por lo cual perdí mi segunda conexión la cual salió adelantada

Crew was not friendly when I went to request a seat change.

There were choices for the snacks. Good choices and tasty lunch and breakfast as well.

The flight crew was amazing. I’m very tall and they moved me to an exit row unsolicited!!! Amazing service.

Not a fan of the diagonal partially enclosed business class seats or how they have to be converted to beds manually by crew. I prefer more isolation and user control for switching to lie flat.

No lounge access with “United First” ticket. False alarm about late flight, jeopardizing connection. Wrong meal. Loose power socket would not hold plug, could not charge device. In-flight access to text messaging did not work. Toilet seat on plane would not stay up.

We ended up with seats in the very back. So they did not recline. Have no idea why, we reserved and checked in very early. The isles were very narrow and the seats had very little leg room. But they did give us water, and a snack.

Energetic crew - flight full of swiftied going to Taylor's opening show in Paris! Long lines for bathroom made out kind of suck though

Check in etc was very good. As for on the plane, it was like flying in a freezer. It was so cold, i have flown for years and never been so cold on a plane. Staff on board said its always cold when flying which is a load of rubbish. They wouldnt put any heating on and now i have the flu because of this .

I’ve had a couple flights this week on United that were delayed by an hour or more

Flight was delayed 2.5 hours - a big deal on an overnight when you plan to sleep.

I feel like they have upgraded the app since I last flew United and I found it to be super helpful. I had stopped flying United unless absolutely necessary and my experience on this trip indicates they have been working hard to improve their services.

Surprisingly easy! I was hesitant to try this, but the cost swayed me. I actually felt like I had less stress than all the taxiing and possible delays that occur with short regional flights where you spend less time in the air than getting to and from the plane..

This flight was delayed multiple times and eventually canceled around 2-3ish. Original take off time was around 10:30am. By 3, there were no other options out of Houston, so stuck in Houston for from 3pm - 11am the next day.

Decent service - nice seats. Crew were not overly attentive but can’t complain overall for the money

Very nice flight, easy connections in Keflavík, and friendly crew.

I will never fly this airline again. Checking in was poor , we had to go back to the check in counter at Raleigh - Durham international airport three times because they didn’t issue my boarding pass but rather duplicated my husband’s twice which caused a big headache at the passport control at the airport which triggered security alert and wouldn’t let us pass through we we had to wait for long time to be able to explain and clear everything after talking to the supervisor.. No food on the plane , not even crackers. No food was offered to buy ether . No ear phone was provided . Very little time to make from one plane to another and nobody to assist with smooth transition. Flight itself , we felt safe so thank you to the pilots . But customer service was terrible . We spent $ 2500 on 2 tickets, so I cannot say that service was consistent with the price .

Seats are way too much now with these new airplanes especially long flights like we had. I was 7 month pregnant and in a lot of discomfort due to small seats.

Food was horrible. This wasn’t business class. No leg space, can’t sleep in row position, huge delay

I liked how easy my transfers between flights in Keflavik were. I would have appreciated more food options in Keflavik.

The plane was flaming hot! Could not breathe. Everyone coughing from heat. Awful.

My biggest problem was the flight from KEF to DUB was delayed, which caused me to miss my connecting flight in DUB and we were forced into an unplanned 10-hour layover in DUB. Crew and boarding staff were all very friendly but this was a real inconvenience and especially uncomfortable for my disabled wife.

Not much! This was my first flight with Iceland air and unfortunately it wasn’t what I have expected. My luggage is lost nothing as of yet where it was left. Not a good service at all!!

The seat size was more like a domestic than an international flight. In fact, i would compare the ammenities, quality and service to a short hall ryan air flight, which was unexpected for an international flight. The plane was extremely hot so sleeping was difficult. My biggest complaint was that they are very strict on carry on luggage only allowing it to weigh 10kg/22lb. I try to limit myself to a carryon so i don't have to mess with bagage claim, but the wieght restriction made it impossible. I have never had a carry on weight restriction (at least enforced) on an international flight. Will not be including them in future searches.

They canceled the flight on us very close to the flight date .

It took 66 hours to get from Seattle to Tel Aviv. As a minor, I was left for more than 12 hours in Toronto and Frankfurt without hotel and food vouchers. It took 5 layovers. It was insane and not okay

It was delayed but got us to YYZ. I had great copassengers.

Flew SEA-CA, then CA-NRT. First flight was short but very uncomfortable, dirty, and had very small overhead storage space. The seats and fans were not cleaned and had visible dirt on them. Second flight was perfect.

My second flight ended up being through United and it was fine. Again, just frustrating that it was so late.

My experience was pretty frustrating because the first leg of my flight on United (though booked through Air Canada) was delayed causing me to miss my connecting flight on Air Canada. This could have been an easy solve as there was a direct flight later that morning via Air Canada that they easily could have put me on which would have only gotten me to my destination 2 1/2 hours later but because United and Air Canada don’t seem to have good communication they gave me the run around both telling me to talk with the other which I did three times to no avail. I ended up taking the delayed flight and getting on a new connecting flight which ended up getting me to my destination 6 hours later and I missed the event I was planning to go to this evening.

Everything went smoothly and as expected. We were on time and one flight arrived early.

First time flying Air Canada and the trip was very pleasant! They did a great job getting us out of Toronto and into Rome (early!) For an international flight it was very enjoyable.

This is not a Business Class equipped airplane and even the crew apologize before take over BUT BUT Air Canada charged full business class fare

All was good, except our baggage was lost for most of a day. We are thankful that it was found quickly and delivered to our hotel. Rouge was fine outside of that problem.

Book cheap flights from Seattle to Reykjavik

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Seattle to Reykjavik found on KAYAK in the last 72 hours.
7/29Mon
3 stops
19h 25mSEA-KEF
$311
7/28Sun
1 stopWestJet
18h 15mSEA-KEF
$315
7/29Mon
nonstopIcelandair
7h 25mSEA-KEF
$455
7/20Sat
nonstopIcelandair
7h 25mSEA-KEF
$465
7/10Wed
2 stopsUnited Airlines
23h 30mSEA-KEF
$470
6/27Thu
1 stopAir Canada
17h 55mSEA-KEF
$530
8/12Mon
2 stopsAir Canada
14h 55mSEA-KEF
$535
7/8Mon
2 stopsUnited Airlines
20h 20mSEA-KEF
$540
8/11Sun
1 stopDelta
23h 30mSEA-KEF
$556
6/4Tue
1 stopDelta
15h 23mSEA-KEF
$594

Search by stops

Search by airline

Search by price

Last minute flights from Seattle to Reykjavik

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Seattle to Reykjavik that are departing in the next 10 days.
5/17Fri
multi-stop
33h 55mSEA-KEF
5/20Mon
multi-stop
10h 21mKEF-SEA
$877
5/20Mon
nonstopIcelandair
7h 20mSEA-KEF
5/27Mon
nonstopIcelandair
7h 50mKEF-SEA
$913
5/17Fri
multi-stop
48h 05mSEA-KEF
5/30Thu
multi-stop
17h 45mKEF-SEA
$914
5/18Sat
nonstopIcelandair
7h 20mSEA-KEF
5/25Sat
nonstopIcelandair
7h 50mKEF-SEA
$931
5/17Fri
nonstopIcelandair
7h 20mSEA-KEF
5/30Thu
nonstopIcelandair
7h 50mKEF-SEA
$933
5/17Fri
multi-stop
30h 25mSEA-KEF
5/20Mon
multi-stop
10h 21mKEF-SEA
$948
5/18Sat
multi-stopKLM
19h 20mSEA-KEF
5/22Wed
multi-stopKLM
15h 15mKEF-SEA
$997
5/18Sat
multi-stopUnited Airlines
18h 15mSEA-KEF
5/22Wed
multi-stopUnited Airlines
16h 27mKEF-SEA
$1,002
5/20Mon
multi-stopUnited Airlines
18h 52mSEA-KEF
5/27Mon
multi-stopUnited Airlines
17h 23mKEF-SEA
$1,012
5/20Mon
multi-stopLufthansa
18h 15mSEA-KEF
5/26Sun
multi-stopLufthansa
19h 00mKEF-SEA
$1,076

Search by stops

Search by airline

Search by price

Seattle - Reykjavik-Keflavik Airport Flights

Departure:

Seattle (undefined)United States

Destination:

Reykjavik-Keflavik Airport (KEF)Iceland

Return flight deals:

Reykjavik-Keflavik Airport - Seattle

Cabin classes:

$2,263
$2,483
$501