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Cheap flights from Reykjavik Keflavik Intl Airport to Washington from $404

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Reykjavik Keflavik Intl Airport to Washington departing on 6/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Reykjavik Keflavik Intl Airport to Washington

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
5:00 pm - 6:00 pm
KEF
-
SEA
8h 00mnonstop
Icelandair Logo
3:40 pm - 6:15 am
SEA
-
KEF
7h 35mnonstop
$633Icelandair
Fri, Mar 27 - Tue, Apr 7
Icelandair Logo
5:00 pm - 5:00 pm
KEF
-
SEA
8h 00mnonstop
Icelandair Logo
2:35 pm - 6:15 am
SEA
-
KEF
7h 40mnonstop
$634Icelandair
Wed, Feb 25 - Wed, Mar 4
Icelandair Logo
5:00 pm - 5:00 pm
KEF
-
SEA
8h 00mnonstop
Icelandair Logo
2:35 pm - 6:15 am
SEA
-
KEF
7h 40mnonstop
$644Icelandair
Tue, Feb 24 - Tue, Mar 3
Icelandair Logo
5:00 pm - 5:00 pm
KEF
-
SEA
8h 00mnonstop
Icelandair Logo
2:35 pm - 6:15 am
SEA
-
KEF
7h 40mnonstop
$655Icelandair
Mon, Feb 23 - Thu, Mar 5
Icelandair Logo
5:00 pm - 5:00 pm
KEF
-
SEA
8h 00mnonstop
Icelandair Logo
2:35 pm - 6:15 am
SEA
-
KEF
7h 40mnonstop
$656Icelandair
Thu, Feb 26 - Tue, Mar 3
Multiple Airlines Logo
5:00 pm - 8:47 pm
KEF
-
PDX
11h 47m1 stop
Multiple Airlines Logo
9:10 am - 6:15 am
PDX
-
KEF
13h 05m1 stop
$831Multiple Airlines
Fri, Jan 30 - Fri, Feb 6
Multiple Airlines Logo
4:55 pm - 1:44 pm
KEF
-
PDX
28h 49m1 stop
Multiple Airlines Logo
7:00 am - 6:05 am
PDX
-
KEF
15h 05m1 stop
$868Multiple Airlines
Sun, Feb 1 - Sun, Feb 8
Lufthansa Logo
3:20 pm - 6:30 pm
KEF
-
PDX
35h 10m2 stops
Lufthansa Logo
3:50 pm - 2:20 pm
PDX
-
KEF
38h 30m2 stops
$1,023Lufthansa
Sun, Feb 1 - Sun, Feb 8
American Airlines Logo
10:30 am - 11:37 pm
KEF
-
PDX
44h 07m2 stops
American Airlines Logo
7:30 pm - 10:00 am
PDX
-
KEF
31h 30m1 stop
$1,026American Airlines
Thu, Apr 16 - Mon, Apr 20
American Airlines Logo
10:30 am - 11:37 pm
KEF
-
PDX
44h 07m2 stops
American Airlines Logo
3:18 pm - 10:00 am
PDX
-
KEF
35h 42m2 stops
$1,078American Airlines
Thu, Apr 16 - Mon, Apr 20

Icelandair flights from Reykjavik Keflavik Intl Airport to State of Washington

Our best Icelandair deals on Reykjavik Keflavik Intl Airport to State of Washington flight tickets
Icelandair
Mar 27
KEF5:00 pmReykjavik Keflavik Intl
8h 00m
SEA6:00 pmSeattle/Tacoma Intl
Apr 7
SEA3:40 pmSeattle/Tacoma Intl
7h 35m
KEF6:15 amReykjavik Keflavik Intl
$633
Find similar
Icelandair
Feb 25
KEF5:00 pmReykjavik Keflavik Intl
8h 00m
SEA5:00 pmSeattle/Tacoma Intl
Mar 4
SEA2:35 pmSeattle/Tacoma Intl
7h 40m
KEF6:15 amReykjavik Keflavik Intl
$634
Find similar
Icelandair
Feb 24
KEF5:00 pmReykjavik Keflavik Intl
8h 00m
SEA5:00 pmSeattle/Tacoma Intl
Mar 3
SEA2:35 pmSeattle/Tacoma Intl
7h 40m
KEF6:15 amReykjavik Keflavik Intl
$644
Find similar

Scandinavian Airlines flights from Reykjavik Keflavik Intl Airport to State of Washington

Our best Scandinavian Airlines deals on Reykjavik Keflavik Intl Airport to State of Washington flight tickets
Scandinavian Airlines
Feb 23
KEF3:40 pmReykjavik Keflavik Intl
38h 42m
2 stops
SEA10:22 pmSeattle/Tacoma Intl
Mar 1
SEA7:10 amSeattle/Tacoma Intl
32h 10m
2 stops
KEF11:20 pmReykjavik Keflavik Intl
$776
Find similar
Scandinavian Airlines
Feb 9
KEF7:35 amReykjavik Keflavik Intl
22h 49m
2 stops
SEA10:24 pmSeattle/Tacoma Intl
Feb 17
SEA11:17 amSeattle/Tacoma Intl
28h 38m
2 stops
KEF11:55 pmReykjavik Keflavik Intl
$804
Find similar
Scandinavian Airlines
Feb 25
KEF11:30 amReykjavik Keflavik Intl
43h 42m
2 stops
SEA11:12 pmSeattle/Tacoma Intl
Mar 1
SEA7:10 amSeattle/Tacoma Intl
43h 35m
2 stops
KEF10:45 amReykjavik Keflavik Intl
$810
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Reykjavik Keflavik Intl Airport to State of Washington 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 December 18, 2025.
Use the filters below to find and compare flights from Reykjavik Keflavik Intl Airport to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Fri 3/27

5:00 pm-6:00 pm

Nonstop8h 00m

Seattle/Tacoma Intl

Tue 4/7

3:40 pm-6:15 am

Nonstop7h 35m

$633

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Wed 2/25

5:00 pm-5:00 pm

Nonstop8h 00m

Seattle/Tacoma Intl

Wed 3/4

2:35 pm-6:15 am

Nonstop7h 40m

$634

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Tue 2/24

5:00 pm-5:00 pm

Nonstop8h 00m

Seattle/Tacoma Intl

Tue 3/3

2:35 pm-6:15 am

Nonstop7h 40m

$644

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Mon 2/23

5:00 pm-5:00 pm

Nonstop8h 00m

Seattle/Tacoma Intl

Thu 3/5

2:35 pm-6:15 am

Nonstop7h 40m

$655

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Thu 2/26

5:00 pm-5:00 pm

Nonstop8h 00m

Seattle/Tacoma Intl

Tue 3/3

2:35 pm-6:15 am

Nonstop7h 40m

$656

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

Fri 1/30

5:00 pm-8:47 pm

1 stop11h 47m

Portland

Fri 2/6

9:10 am-6:15 am

1 stop13h 05m

$831

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

Sun 2/1

4:55 pm-1:44 pm

1 stop28h 49m

Portland

Sun 2/8

7:00 am-6:05 am

1 stop15h 05m

$868

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

Sun 2/1

3:20 pm-6:30 pm

2 stops35h 10m

Portland

Sun 2/8

3:50 pm-2:20 pm

2 stops38h 30m

$1,023

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

Thu 4/16

10:30 am-11:37 pm

2 stops44h 07m

Portland

Mon 4/20

7:30 pm-10:00 am

1 stop31h 30m

$1,026

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

Thu 4/16

10:30 am-11:37 pm

2 stops44h 07m

Portland

Mon 4/20

3:18 pm-10:00 am

2 stops35h 42m

$1,078

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 Washington from

How to get the cheapest flight ticket from Reykjavik Keflavik Intl Airport to State of Washington

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 State of Washington?

The cheapest day to depart from Reykjavik Keflavik Intl Airport to State of Washington is on a Monday. Travelers who choose to depart for State of Washington on a Monday will often find tickets for as low as $693. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Reykjavik Keflavik Intl Airport to State of Washington for around $922.

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

The cheapest time of day to fly to State of Washington is in the evening when flights can be purchased for as low as $659. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $903 on average. Flights to State of Washington from Reykjavik Keflavik Intl Airport in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Reykjavik Keflavik Intl to Washington flight route?

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

What cabin class options are available on Reykjavik Keflavik Intl to Washington flights?

There are 3 cabin classes available to choose from on Reykjavik Keflavik Intl to Washington 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 Reykjavik Keflavik Intl Airport to State of Washington flights?

You could potentially save up to 23% on your flight if you consider stops on a Reykjavik Keflavik Intl Airport to State of Washington flight.

Cheap Reykjavik Keflavik Intl Airport to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Reykjavik Keflavik Intl Airport to State of Washington

Fastest flight time

8h 00m

Direct flights

Every day

Airports in State of Washington

96 airports
The fastest flight from Reykjavik Keflavik Intl Airport to State of Washington takes 8h 00m
Direct flights go from Reykjavik Keflavik Intl Airport to State of Washington every day.
There are 96 airports in State of Washington. From Reykjavik Keflavik Intl Airport there are direct flights to Portland (PDX), Seattle/Tacoma Intl (SEA).
Search flight deals

  • When did momondo last update prices for flights from Reykjavik Keflavik Intl Airport to Washington?

    Prices for flights from Reykjavik Keflavik Intl Airport to Washington were last updated today.

  • How many operators does momondo search for flights from Reykjavik Keflavik Intl Airport to Washington?

  • How old do you have to be to fly from Reykjavik Keflavik Intl Airport to Washington?

    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 Reykjavik Keflavik Intl Airport to Washington.

  • What documentation or ID do you need to fly to Washington?

    The required travel and health documents for your Washington trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Reykjavik Keflavik Intl Airport to State of Washington?

Best airlines flying from Reykjavik Keflavik Intl Airport to State of Washington

Compare and see reviews for airlines that fly from Reykjavik Keflavik Intl Airport to State of Washington with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $639Free CancellationRating
7.0
591 reviews
Search Icelandair flights

Why use momondo?

Why should I use momondo to find a flight deal from Reykjavik to Washington?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Reykjavik to Washington for you.

Can I find flights from Reykjavik to Washington with flexible booking policies on momondo?

Yes. All flights to Washington from Reykjavik on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Reykjavik to Washington?

momondo helps you find the best flight between Reykjavik and Washington by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from Reykjavik to Washington now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington and let you know when they change.

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