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Cheap flights from Reykjavik Keflavik Intl Airport to Washington from $309

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 9/10. 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

Logo
3:05 pm - 10:27 pmKEF-SEA
14h 22m1 stop
Logo
6:12 am - 4:55 amSEA-KEF
39h 43m2 stops
$506
Find Deal
Tue, Sep 23 - Sun, Sep 28
Logo
3:05 pm - 10:27 pmKEF-SEA
14h 22m1 stop
Logo
6:12 am - 4:55 amSEA-KEF
39h 43m2 stops
$520
Find Deal
Mon, Sep 22 - Sun, Sep 28
Logo
3:05 pm - 12:07 pmKEF-SEA
28h 02m2 stops
Logo
4:20 pm - 4:55 amSEA-KEF
29h 35m1 stop
$529
Find Deal
Mon, Oct 6 - Tue, Oct 14
Scandinavian Airlines Logo
11:05 am - 2:00 pmKEF-SEA
57h 55m2 stops
Scandinavian Airlines Logo
12:45 pm - 10:45 amSEA-KEF
39h 00m2 stops
$620Scandinavian Airlines
Find Deal
Wed, Oct 22 - Sun, Oct 26
Icelandair Logo
4:50 pm - 5:00 pmKEF-PDX
8h 10mnonstop
Icelandair Logo
2:45 pm - 6:15 amPDX-KEF
7h 30mnonstop
$651Icelandair
Find Deal
Sun, Nov 2 - Mon, Dec 1
Scandinavian Airlines Logo
11:00 am - 2:00 pmKEF-SEA
34h 00m2 stops
Scandinavian Airlines Logo
4:20 pm - 4:20 pmSEA-KEF
17h 00m1 stop
$655Scandinavian Airlines
Find Deal
Tue, Oct 7 - Fri, Oct 17
Icelandair Logo
4:50 pm - 6:00 pmKEF-PDX
8h 10mnonstop
Icelandair Logo
2:45 pm - 6:15 amPDX-KEF
7h 30mnonstop
$665Icelandair
Find Deal
Wed, Oct 29 - Mon, Dec 1
WestJet Logo
9:35 am - 7:14 pmKEF-SEA
16h 39m1 stop
WestJet Logo
10:55 pm - 8:15 amSEA-KEF
26h 20m3 stops
$737WestJet
Find Deal
Thu, Oct 2 - Thu, Oct 9
Virgin Atlantic Logo
11:25 am - 10:42 pmKEF-PDX
18h 17m2 stops
Virgin Atlantic Logo
9:50 am - 9:30 amPDX-KEF
16h 40m2 stops
$906Virgin Atlantic
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Thu, Sep 11 - Mon, Sep 15
Virgin Atlantic Logo
11:25 am - 9:05 pmKEF-PDX
16h 40m1 stop
Virgin Atlantic Logo
7:15 am - 9:30 amPDX-KEF
19h 15m1 stop
$913Virgin Atlantic
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Fri, Sep 19 - Tue, Sep 23

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
Oct 22
KEF11:05 amReykjavik Keflavik Intl
57h 55m
2 stops
SEA2:00 pmSeattle/Tacoma Intl
Oct 26
SEA12:45 pmSeattle/Tacoma Intl
39h 00m
2 stops
KEF10:45 amReykjavik Keflavik Intl
$620
Find similar
Scandinavian Airlines
Oct 7
KEF11:00 amReykjavik Keflavik Intl
34h 00m
2 stops
SEA2:00 pmSeattle/Tacoma Intl
Oct 17
SEA4:20 pmSeattle/Tacoma Intl
17h 00m
1 stop
KEF4:20 pmReykjavik Keflavik Intl
$655
Find similar
Scandinavian Airlines
Oct 7
KEF5:10 pmReykjavik Keflavik Intl
27h 50m
1 stop
SEA2:00 pmSeattle/Tacoma Intl
Oct 17
SEA4:20 pmSeattle/Tacoma Intl
17h 00m
1 stop
KEF4:20 pmReykjavik Keflavik Intl
$661
Find similar

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
Nov 2
KEF4:50 pmReykjavik Keflavik Intl
8h 10m
PDX5:00 pmPortland
Dec 1
PDX2:45 pmPortland
7h 30m
KEF6:15 amReykjavik Keflavik Intl
$651
Find similar
Icelandair
Oct 29
KEF4:50 pmReykjavik Keflavik Intl
8h 10m
PDX6:00 pmPortland
Dec 1
PDX2:45 pmPortland
7h 30m
KEF6:15 amReykjavik Keflavik Intl
$665
Find similar
Icelandair
Oct 22
KEF7:45 pmReykjavik Keflavik Intl
7h 55m
SEA8:40 pmSeattle/Tacoma Intl
Oct 26
SEA3:35 pmSeattle/Tacoma Intl
7h 40m
KEF6:15 amReykjavik Keflavik Intl
$666
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 August 20, 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

Tue 9/23

3:05 pm-10:27 pm

1 stop14h 22m

Seattle/Tacoma Intl

Sun 9/28

6:12 am-4:55 am

2 stops39h 43m

$506

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Mon 9/22

3:05 pm-10:27 pm

1 stop14h 22m

Seattle/Tacoma Intl

Sun 9/28

6:12 am-4:55 am

2 stops39h 43m

$520

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Mon 10/6

3:05 pm-12:07 pm

2 stops28h 02m

Seattle/Tacoma Intl

Tue 10/14

4:20 pm-4:55 am

1 stop29h 35m

$529

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Wed 10/22

11:05 am-2:00 pm

2 stops57h 55m

Seattle/Tacoma Intl

Sun 10/26

12:45 pm-10:45 am

2 stops39h 00m

$620

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

Sun 11/2

4:50 pm-5:00 pm

Nonstop8h 10m

Portland

Mon 12/1

2:45 pm-6:15 am

Nonstop7h 30m

$651

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Tue 10/7

11:00 am-2:00 pm

2 stops34h 00m

Seattle/Tacoma Intl

Fri 10/17

4:20 pm-4:20 pm

1 stop17h 00m

$655

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

Wed 10/29

4:50 pm-6:00 pm

Nonstop8h 10m

Portland

Mon 12/1

2:45 pm-6:15 am

Nonstop7h 30m

$665

ReykjavikSeattle

KEF - SEA

KEFSEA

Reykjavik Keflavik Intl

Thu 10/2

9:35 am-7:14 pm

1 stop16h 39m

Seattle/Tacoma Intl

Thu 10/9

10:55 pm-8:15 am

3 stops26h 20m

$737

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

Thu 9/11

11:25 am-10:42 pm

2 stops18h 17m

Portland

Mon 9/15

9:50 am-9:30 am

2 stops16h 40m

$906

ReykjavikPortland

KEF - PDX

KEFPDX

Reykjavik Keflavik Intl

Fri 9/19

11:25 am-9:05 pm

1 stop16h 40m

Portland

Tue 9/23

7:15 am-9:30 am

1 stop19h 15m

$913

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 Saturday. Travelers who choose to depart for State of Washington on a Saturday will often find tickets for as low as $800. When flying out on a Monday, 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 $931.

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 $652. 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 14% 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

7h 55m

Direct flights

Every day

Airports in State of Washington

2 airports
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 2 airports near State of Washington: Portland (PDX), Seattle/Tacoma Intl (SEA)
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  • 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
529 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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