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Cheap flights from Iceland to Seattle from $373

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Iceland to Seattle departing on 9/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Iceland to Seattle

Recent round-trip flight deals from Iceland to Seattle

Enter your travel dates to find the best prices.
Icelandair Logo
10:40 am - 11:45 am
KEF
-
SEA
8h 05mnonstop
Icelandair Logo
7:00 pm - 9:25 am
SEA
-
KEF
7h 25mnonstop
$630Icelandair
Tue, Aug 25 - Sun, Aug 30
Icelandair Logo
4:50 pm - 5:55 pm
KEF
-
SEA
8h 05mnonstop
Icelandair Logo
7:00 pm - 9:25 am
SEA
-
KEF
7h 25mnonstop
$645Icelandair
Fri, Oct 9 - Thu, Oct 22
Icelandair Logo
10:40 am - 11:45 am
KEF
-
SEA
8h 05mnonstop
Icelandair Logo
11:25 pm - 2:00 pm
SEA
-
KEF
7h 35mnonstop
$660Icelandair
Tue, Aug 4 - Tue, Aug 11
Icelandair Logo
10:40 am - 11:45 am
KEF
-
SEA
8h 05mnonstop
Icelandair Logo
11:25 pm - 2:00 pm
SEA
-
KEF
7h 35mnonstop
$662Icelandair
Sat, Aug 22 - Wed, Aug 26
Icelandair Logo
10:40 am - 11:45 am
KEF
-
SEA
8h 05mnonstop
Icelandair Logo
11:25 pm - 2:00 pm
SEA
-
KEF
7h 35mnonstop
$663Icelandair
Sat, Aug 22 - Wed, Aug 26
Icelandair Logo
10:40 am - 11:45 am
KEF
-
SEA
8h 05mnonstop
Icelandair Logo
7:00 pm - 9:25 am
SEA
-
KEF
7h 25mnonstop
$671Icelandair
Thu, Jul 16 - Sun, Aug 2
Icelandair Logo
10:40 am - 11:45 am
KEF
-
SEA
8h 05mnonstop
Icelandair Logo
3:40 pm - 6:15 am
SEA
-
KEF
7h 35mnonstop
$672Icelandair
Thu, Jul 16 - Sun, Aug 2
Icelandair Logo
10:40 am - 11:45 am
KEF
-
SEA
8h 05mnonstop
Icelandair Logo
7:00 pm - 9:25 am
SEA
-
KEF
7h 25mnonstop
$674Icelandair
Mon, Aug 24 - Sun, Aug 30
Icelandair Logo
10:40 am - 11:45 am
KEF
-
SEA
8h 05mnonstop
Icelandair Logo
11:25 pm - 2:00 pm
SEA
-
KEF
7h 35mnonstop
$725Icelandair
Mon, Jul 20 - Mon, Jul 27
Multiple Airlines Logo
9:00 am - 9:00 pm
KEF
-
SEA
19h 00m
1 stop
Multiple Airlines Logo
5:50 am - 7:40 am
SEA
-
KEF
18h 50m
2 stops
$749Multiple Airlines
Thu, Jul 16 - Sun, Aug 2

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Icelandair flights from Iceland to Seattle

Our best Icelandair deals on Iceland to Seattle flight tickets
Icelandair
Aug 25
KEF10:40 amReykjavik Keflavik Intl
8h 05m
SEA11:45 amSeattle/Tacoma Intl
Aug 30
SEA7:00 pmSeattle/Tacoma Intl
7h 25m
KEF9:25 amReykjavik Keflavik Intl
$630
Icelandair
Oct 9
KEF4:50 pmReykjavik Keflavik Intl
8h 05m
SEA5:55 pmSeattle/Tacoma Intl
Oct 22
SEA7:00 pmSeattle/Tacoma Intl
7h 25m
KEF9:25 amReykjavik Keflavik Intl
$645
Icelandair
Aug 4
KEF10:40 amReykjavik Keflavik Intl
8h 05m
SEA11:45 amSeattle/Tacoma Intl
Aug 11
SEA11:25 pmSeattle/Tacoma Intl
7h 35m
KEF2:00 pmReykjavik Keflavik Intl
$660

WestJet flights from Iceland to Seattle

Our best WestJet deals on Iceland to Seattle flight tickets
WestJet
Aug 22
KEF9:30 amReykjavik Keflavik Intl
31h 10m
2 stops
SEA9:40 amSeattle/Tacoma Intl
Aug 26
SEA10:30 amSeattle/Tacoma Intl
14h 10m
1 stop
KEF7:40 amReykjavik Keflavik Intl
$751
WestJet
Aug 26
KEF9:00 amReykjavik Keflavik Intl
31h 40m
1 stop
SEA9:40 amSeattle/Tacoma Intl
Aug 30
SEA10:30 amSeattle/Tacoma Intl
14h 10m
1 stop
KEF7:40 amReykjavik Keflavik Intl
$766
WestJet
Aug 25
KEF9:00 amReykjavik Keflavik Intl
31h 40m
1 stop
SEA9:40 amSeattle/Tacoma Intl
Aug 30
SEA7:35 pmSeattle/Tacoma Intl
29h 05m
1 stop
KEF7:40 amReykjavik Keflavik Intl
$767

momondo Fare Finder

 
Customize your flight search to find flights from Iceland to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated June 26, 2026.
Use the filters below to find and compare flights from Iceland to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Tue 8/25

10:40 am-11:45 am

Nonstop8h 05m

Seattle/Tacoma Intl

Sun 8/30

7:00 pm-9:25 am

Nonstop7h 25m

$630

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Fri 10/9

4:50 pm-5:55 pm

Nonstop8h 05m

Seattle/Tacoma Intl

Thu 10/22

7:00 pm-9:25 am

Nonstop7h 25m

$645

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Tue 8/4

10:40 am-11:45 am

Nonstop8h 05m

Seattle/Tacoma Intl

Tue 8/11

11:25 pm-2:00 pm

Nonstop7h 35m

$660

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Sat 8/22

10:40 am-11:45 am

Nonstop8h 05m

Seattle/Tacoma Intl

Wed 8/26

11:25 pm-2:00 pm

Nonstop7h 35m

$662

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Sat 8/22

10:40 am-11:45 am

Nonstop8h 05m

Seattle/Tacoma Intl

Wed 8/26

11:25 pm-2:00 pm

Nonstop7h 35m

$663

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Thu 7/16

10:40 am-11:45 am

Nonstop8h 05m

Seattle/Tacoma Intl

Sun 8/2

7:00 pm-9:25 am

Nonstop7h 25m

$671

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Thu 7/16

10:40 am-11:45 am

Nonstop8h 05m

Seattle/Tacoma Intl

Sun 8/2

3:40 pm-6:15 am

Nonstop7h 35m

$672

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Mon 8/24

10:40 am-11:45 am

Nonstop8h 05m

Seattle/Tacoma Intl

Sun 8/30

7:00 pm-9:25 am

Nonstop7h 25m

$674

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Mon 7/20

10:40 am-11:45 am

Nonstop8h 05m

Seattle/Tacoma Intl

Mon 7/27

11:25 pm-2:00 pm

Nonstop7h 35m

$725

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Thu 7/16

9:00 am-9:00 pm

1 stop19h 00m

Seattle/Tacoma Intl

Sun 8/2

5:50 am-7:40 am

2 stops18h 50m

$749

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from Iceland to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Iceland is on a Friday. momondo users have found tickets for Friday departures for as low as $723. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from Iceland because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,439.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Iceland in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $866 when looking at flights departing in the afternoon. Flights to Seattle are more costly in the morning, with an average ticket price of $933. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Iceland to Seattle/Tacoma Intl flight route?

Fly from Reykjavik Keflavik Intl to Seattle/Tacoma Intl for the best Iceland - Seattle/Tacoma Intl flight prices

What cabin class options are available on Iceland to Seattle flights?

There are 4 cabin classes available to choose from on Iceland to Seattle flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Iceland to Seattle flights?

You could potentially save up to 30% on your flight if you consider stops on a Iceland to Seattle flight.

Cheap Iceland to Seattle flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Iceland to Seattle

Fastest flight time

7h 55m

Direct flights

Tue, Wed, Thu, Fri, Sat and Sun

Airports in Seattle

1 airport
The fastest flight from Iceland to Seattle takes 7h 55m
Direct flights go from Iceland to Seattle on Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
There is 1 airport in Seattle. From Iceland there are direct flights to Seattle/Tacoma Intl (SEA).
Search flight deals

Frequently asked questions about flying from Iceland to Seattle

  • When did momondo last update prices for flights from Iceland to Seattle/Tacoma Intl Airport?

    Prices for flights from Iceland to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Iceland to Seattle/Tacoma Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Iceland to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Iceland to Seattle?

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Redmond
Kent
Lakewood
Puyallup
Tukwila
Federal Way
Fife
Cle Elum
Marysville
Centralia
Kirkland
Shoreline
Westport

Why use momondo?

Why should I use momondo to find a flight deal from Iceland to Seattle?

It is quick and easy to find Iceland to Seattle flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Seattle that suits you.

Can I find flights from Iceland to Seattle with flexible booking policies on momondo?

momondo does allow users to show only those flights to Seattle from Iceland which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Iceland to Seattle?

Once all potential Iceland to Seattle flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Iceland to Seattle right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Iceland and alert you when they change.

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