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Cheap flights from Reykjavik Keflavik Intl Airport to Washington from $299

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 5/23. 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
7:45 pm - 8:40 pm
KEF
-
SEA
7h 55mnonstop
Icelandair Logo
7:00 pm - 9:25 am
SEA
-
KEF
7h 25mnonstop
$648Icelandair
Wed, Apr 15 - Wed, Jul 15
Icelandair Logo
4:50 pm - 5:55 pm
KEF
-
SEA
8h 05mnonstop
Icelandair Logo
3:40 pm - 6:15 am
SEA
-
KEF
7h 35mnonstop
$659Icelandair
Mon, Apr 6 - Tue, Apr 14
Icelandair Logo
4:50 pm - 5:55 pm
KEF
-
SEA
8h 05mnonstop
Icelandair Logo
3:40 pm - 6:15 am
SEA
-
KEF
7h 35mnonstop
$661Icelandair
Mon, Apr 6 - Tue, Apr 14
Icelandair Logo
7:45 pm - 8:40 pm
KEF
-
SEA
7h 55mnonstop
Icelandair Logo
3:40 pm - 6:15 am
SEA
-
KEF
7h 35mnonstop
$679Icelandair
Wed, May 20 - Wed, May 27
Icelandair Logo
4:50 pm - 5:55 pm
KEF
-
PDX
8h 05mnonstop
Icelandair Logo
3:30 pm - 6:05 am
PDX
-
KEF
7h 35mnonstop
$683Icelandair
Sun, Aug 2 - Wed, Sep 16
Multiple Airlines Logo
4:50 pm - 5:55 pm
KEF
-
PDX
8h 05mnonstop
Multiple Airlines Logo
9:40 am - 9:25 am
PDX
-
KEF
16h 45m
1 stop
$841Multiple Airlines
Wed, Aug 5 - Mon, Sep 14
Air Canada Logo
10:00 am - 9:31 am
KEF
-
PDX
30h 31m
2 stops
Air Canada Logo
7:45 pm - 7:55 am
PDX
-
KEF
29h 10m
2 stops
$915Air Canada
Wed, Aug 5 - Mon, Sep 14
United Airlines Logo
9:15 am - 12:51 am
KEF
-
PDX
22h 36m
2 stops
United Airlines Logo
11:00 am - 8:30 am
PDX
-
KEF
14h 30m
2 stops
$937United Airlines
Tue, Aug 4 - Wed, Sep 16
United Airlines Logo
12:00 pm - 8:54 pm
KEF
-
PDX
15h 54m
2 stops
United Airlines Logo
11:00 am - 8:30 am
PDX
-
KEF
14h 30m
2 stops
$939United Airlines
Wed, Aug 5 - Thu, Sep 17
Multiple Airlines Logo
12:45 pm - 4:50 pm
KEF
-
PDX
11h 05m
1 stop
Multiple Airlines Logo
10:30 am - 7:40 am
PDX
-
KEF
14h 10m
2 stops
$1,069Multiple Airlines
Mon, Aug 3 - Mon, Sep 14

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
Apr 6
KEF4:50 pmReykjavik Keflavik Intl
8h 05m
SEA5:55 pmSeattle/Tacoma Intl
Apr 14
SEA3:40 pmSeattle/Tacoma Intl
7h 35m
KEF6:15 amReykjavik Keflavik Intl
$659
Icelandair
Apr 6
KEF4:50 pmReykjavik Keflavik Intl
8h 05m
SEA5:55 pmSeattle/Tacoma Intl
Apr 14
SEA3:40 pmSeattle/Tacoma Intl
7h 35m
KEF6:15 amReykjavik Keflavik Intl
$661
Icelandair
May 20
KEF7:45 pmReykjavik Keflavik Intl
7h 55m
SEA8:40 pmSeattle/Tacoma Intl
May 27
SEA3:40 pmSeattle/Tacoma Intl
7h 35m
KEF6:15 amReykjavik Keflavik Intl
$679

Finnair flights from Reykjavik Keflavik Intl Airport to State of Washington

Our best Finnair deals on Reykjavik Keflavik Intl Airport to State of Washington flight tickets
Finnair
Apr 4
KEF8:40 amReykjavik Keflavik Intl
40h 00m
2 stops
PDX5:40 pmPortland
Apr 11
PDX7:30 pmPortland
29h 20m
2 stops
KEF7:50 amReykjavik Keflavik Intl
$1,080
Finnair
Mar 16
KEF9:45 amReykjavik Keflavik Intl
39h 10m
2 stops
SEA5:55 pmSeattle/Tacoma Intl
Mar 21
SEA7:50 pmSeattle/Tacoma Intl
30h 25m
2 stops
KEF9:15 amReykjavik Keflavik Intl
$1,208
Finnair
Mar 16
KEF10:00 amReykjavik Keflavik Intl
38h 55m
2 stops
SEA5:55 pmSeattle/Tacoma Intl
Mar 21
SEA7:50 pmSeattle/Tacoma Intl
30h 25m
2 stops
KEF9:15 amReykjavik Keflavik Intl
$1,211

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 February 21, 2026.
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

Wed 4/15

7:45 pm-8:40 pm

Nonstop7h 55m

Seattle/Tacoma Intl

Wed 7/15

7:00 pm-9:25 am

Nonstop7h 25m

$648

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Mon 4/6

4:50 pm-5:55 pm

Nonstop8h 05m

Seattle/Tacoma Intl

Tue 4/14

3:40 pm-6:15 am

Nonstop7h 35m

$659

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Mon 4/6

4:50 pm-5:55 pm

Nonstop8h 05m

Seattle/Tacoma Intl

Tue 4/14

3:40 pm-6:15 am

Nonstop7h 35m

$661

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Wed 5/20

7:45 pm-8:40 pm

Nonstop7h 55m

Seattle/Tacoma Intl

Wed 5/27

3:40 pm-6:15 am

Nonstop7h 35m

$679

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

Sun 8/2

4:50 pm-5:55 pm

Nonstop8h 05m

Portland

Wed 9/16

3:30 pm-6:05 am

Nonstop7h 35m

$683

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

Wed 8/5

4:50 pm-5:55 pm

Nonstop8h 05m

Portland

Mon 9/14

9:40 am-9:25 am

1 stop16h 45m

$841

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

Wed 8/5

10:00 am-9:31 am

2 stops30h 31m

Portland

Mon 9/14

7:45 pm-7:55 am

2 stops29h 10m

$915

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

Tue 8/4

9:15 am-12:51 am

2 stops22h 36m

Portland

Wed 9/16

11:00 am-8:30 am

2 stops14h 30m

$937

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

Wed 8/5

12:00 pm-8:54 pm

2 stops15h 54m

Portland

Thu 9/17

11:00 am-8:30 am

2 stops14h 30m

$939

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

Mon 8/3

12:45 pm-4:50 pm

1 stop11h 05m

Portland

Mon 9/14

10:30 am-7:40 am

2 stops14h 10m

$1,069

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 Friday. Travelers who choose to depart for State of Washington on a Friday will often find tickets for as low as $723. When flying out on a Thursday, 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 $903.

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 4 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 24% 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

Best Price Found

$758

Fastest flight time

7h 55m

Direct flights

Every day

Airports in State of Washington

96 airports
The best one-way flight to State of Washington from Reykjavik Keflavik Intl Airport in the past 72 hours is $758. The best round-trip flight deal from Reykjavik Keflavik Intl Airport to State of Washington found on momondo in the last 72 hours is $694.
The fastest flight from Reykjavik Keflavik Intl Airport to State of Washington takes 7h 55m
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 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?

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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