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Cheap flights from Seattle to Iceland from $243

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Iceland departing on 10/10. 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 Seattle to Iceland

Cheap round-trip flights

Icelandair Logo
3:35 pm - 6:15 amSEA-KEF
7h 40mnonstop
Icelandair Logo
5:00 pm - 5:00 pmKEF-SEA
8h 00mnonstop
$398Icelandair
Find Deal
vie., oct. 31 - vie., nov. 7
Icelandair Logo
3:45 pm - 6:15 amSEA-KEF
7h 30mnonstop
Icelandair Logo
7:45 pm - 8:40 pmKEF-SEA
7h 55mnonstop
$405Icelandair
Find Deal
mié., oct. 8 - jue., oct. 16
Icelandair Logo
2:35 pm - 6:15 amSEA-KEF
7h 40mnonstop
Icelandair Logo
5:00 pm - 5:00 pmKEF-SEA
8h 00mnonstop
$411Icelandair
Find Deal
lun., nov. 17 - vie., dic. 5
Virgin Atlantic Logo
9:58 pm - 9:30 amSEA-KEF
28h 32m1 stop
Virgin Atlantic Logo
11:25 am - 2:45 pmKEF-SEA
34h 20m2 stops
$431Virgin Atlantic
Find Deal
dom., sep. 28 - mar., oct. 7
Multiple Airlines Logo
10:00 am - 8:15 amSEA-KEF
15h 15m2 stops
Multiple Airlines Logo
12:25 am - 11:55 amKEF-SEA
18h 30m1 stop
$465Multiple Airlines
Find Deal
dom., sep. 28 - lun., oct. 6
Multiple Airlines Logo
10:00 am - 8:10 amSEA-KEF
39h 10m2 stops
Multiple Airlines Logo
12:25 am - 11:55 amKEF-SEA
18h 30m1 stop
$472Multiple Airlines
Find Deal
mié., oct. 1 - sáb., oct. 4
Delta Logo
6:00 am - 6:20 amSEA-KEF
17h 20m1 stop
Delta Logo
8:45 am - 2:35 pmKEF-SEA
12h 50m1 stop
$473Delta
Find Deal
dom., oct. 5 - mar., oct. 14
Delta Logo
3:45 pm - 6:20 amSEA-KEF
31h 35m2 stops
Delta Logo
11:25 am - 11:54 pmKEF-SEA
19h 29m2 stops
$478Delta
Find Deal
sáb., oct. 4 - mar., oct. 14
Lufthansa Logo
6:50 pm - 12:10 amSEA-KEF
22h 20m1 stop
Lufthansa Logo
12:25 am - 11:55 amKEF-SEA
18h 30m1 stop
$494Lufthansa
Find Deal
mié., oct. 8 - mié., oct. 15
Lufthansa Logo
3:10 pm - 11:35 pmSEA-KEF
24h 25m1 stop
Lufthansa Logo
3:25 pm - 12:10 pmKEF-SEA
28h 45m1 stop
$509Lufthansa
Find Deal
vie., nov. 7 - vie., nov. 21

Icelandair flights from Seattle to Iceland

Our best Icelandair deals on Seattle to Iceland flight tickets
Icelandair
Oct 31
SEA3:35 pmSeattle/Tacoma Intl
7h 40m
KEF6:15 amReykjavik Keflavik Intl
Nov 7
KEF5:00 pmReykjavik Keflavik Intl
8h 00m
SEA5:00 pmSeattle/Tacoma Intl
$398
Find similar
Icelandair
Oct 8
SEA3:45 pmSeattle/Tacoma Intl
7h 30m
KEF6:15 amReykjavik Keflavik Intl
Oct 16
KEF7:45 pmReykjavik Keflavik Intl
7h 55m
SEA8:40 pmSeattle/Tacoma Intl
$405
Find similar
Icelandair
Nov 17
SEA2:35 pmSeattle/Tacoma Intl
7h 40m
KEF6:15 amReykjavik Keflavik Intl
Dec 5
KEF5:00 pmReykjavik Keflavik Intl
8h 00m
SEA5:00 pmSeattle/Tacoma Intl
$411
Find similar

Lufthansa flights from Seattle to Iceland

Our best Lufthansa deals on Seattle to Iceland flight tickets
Lufthansa
Oct 8
SEA6:50 pmSeattle/Tacoma Intl
22h 20m
1 stop
KEF12:10 amReykjavik Keflavik Intl
Oct 15
KEF12:25 amReykjavik Keflavik Intl
18h 30m
1 stop
SEA11:55 amSeattle/Tacoma Intl
$494
Find similar
Lufthansa
Sep 19
SEA7:00 amSeattle/Tacoma Intl
18h 30m
1 stop
KEF8:30 amReykjavik Keflavik Intl
Oct 4
KEF1:15 amReykjavik Keflavik Intl
22h 44m
1 stop
SEA4:59 pmSeattle/Tacoma Intl
$498
Find similar
Lufthansa
Nov 7
SEA3:10 pmSeattle/Tacoma Intl
24h 25m
1 stop
KEF11:35 pmReykjavik Keflavik Intl
Nov 21
KEF3:25 pmReykjavik Keflavik Intl
28h 45m
1 stop
SEA12:10 pmSeattle/Tacoma Intl
$509
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Iceland 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 septiembre 17, 2025.
Use the filters below to find and compare flights from Seattle to Iceland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

vie. 10/31

3:35 pm-6:15 am

Nonstop7h 40m

Reykjavik Keflavik Intl

vie. 11/7

5:00 pm-5:00 pm

Nonstop8h 00m

$398

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

mié. 10/8

3:45 pm-6:15 am

Nonstop7h 30m

Reykjavik Keflavik Intl

jue. 10/16

7:45 pm-8:40 pm

Nonstop7h 55m

$405

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

lun. 11/17

2:35 pm-6:15 am

Nonstop7h 40m

Reykjavik Keflavik Intl

vie. 12/5

5:00 pm-5:00 pm

Nonstop8h 00m

$411

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

dom. 9/28

9:58 pm-9:30 am

1 stop28h 32m

Reykjavik Keflavik Intl

mar. 10/7

11:25 am-2:45 pm

2 stops34h 20m

$431

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

dom. 9/28

10:00 am-8:15 am

2 stops15h 15m

Reykjavik Keflavik Intl

lun. 10/6

12:25 am-11:55 am

1 stop18h 30m

$465

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

mié. 10/1

10:00 am-8:10 am

2 stops39h 10m

Reykjavik Keflavik Intl

sáb. 10/4

12:25 am-11:55 am

1 stop18h 30m

$472

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

dom. 10/5

6:00 am-6:20 am

1 stop17h 20m

Reykjavik Keflavik Intl

mar. 10/14

8:45 am-2:35 pm

1 stop12h 50m

$473

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

sáb. 10/4

3:45 pm-6:20 am

2 stops31h 35m

Reykjavik Keflavik Intl

mar. 10/14

11:25 am-11:54 pm

2 stops19h 29m

$478

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

mié. 10/8

6:50 pm-12:10 am

1 stop22h 20m

Reykjavik Keflavik Intl

mié. 10/15

12:25 am-11:55 am

1 stop18h 30m

$494

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

vie. 11/7

3:10 pm-11:35 pm

1 stop24h 25m

Reykjavik Keflavik Intl

vie. 11/21

3:25 pm-12:10 pm

1 stop28h 45m

$509

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 Iceland from

How to get the cheapest flight ticket from Seattle to Iceland

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 month to fly to Iceland?

The cheapest month to fly to Iceland from Seattle is in October. Flight prices, which tend to average around $573, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of October, then book flights to Iceland from Seattle during August instead. Flights to Iceland in August, while not as cheap as those in October, still average around $584.

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

The cheapest day to depart from Seattle to Iceland is on a Wednesday when prices can be found for as low as $618. Flights from Seattle to Iceland on a Thursday will generally be more expensive and average around $662. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

According to our data, the cheapest time of day to fly to Iceland is in the morning. momondo users have found flights departing from Seattle to Iceland in the morning for as low as $536. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the evening because they tend to be around $657. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

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

How far in advance should I book a flight to Iceland?

You are more likely to see cheaper flights to Iceland from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Iceland for around $699 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Iceland from Seattle for as low as $505 on momondo.

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

There are 3 cabin classes available to choose from on Seattle/Tacoma Intl to Iceland 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 Seattle to Iceland flights?

You could potentially save up to 47% on your flight if you consider stops on a Seattle to Iceland flight.

Cheap Seattle to Iceland flight deals and tips

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

Best Price Found

$406

Fastest flight time

7h 20m

Direct flights

Every day

Airports in Iceland

1 airport
The best one-way flight to Iceland from Seattle in the past 72 hours is $406. The best round-trip flight deal from Seattle to Iceland found on momondo in the last 72 hours is $464.
The fastest flight from Seattle to Iceland takes 7h 20m
Direct flights go from Seattle to Iceland every day.
There is 1 airport near Iceland: Reykjavik Keflavik Intl (KEF)
Search flight deals

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

    Prices for flights from Seattle/Tacoma Intl Airport to Iceland were last updated today.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Iceland?

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Iceland.

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

    The travel and health documents you'll need for your trip to Iceland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Iceland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from Seattle to Iceland

Compare and see reviews for airlines that fly from Seattle to Iceland with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $374Free CancellationRating
7.0
545 reviews
Search Icelandair flights

Why use momondo?

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

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 Seattle to Iceland for you.

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

Yes. momondo allows you to filter the results for Seattle to Iceland flights to just show those with flexible booking policies.

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

Once all potential Seattle to Iceland 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 Seattle to Iceland right now. Can momondo alert me if prices change?

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

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vie. 10/17
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