Cheap Flights From Keflavik Intl. (KEF) To Seattle - Tacoma Intl. (SEA)

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Cheapest Flights from Reykjavik (KEF) to Seattle (SEA)

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were CA $987 round trip and CA $368 one way. Prices and availability subject to change. Additional terms may apply.

Thu, Aug. 28 - Thu, Sep. 4
KEF
Reykjavik
SEA
Seattle
CA $987 Roundtrip, found 5 days ago
CA $987
Roundtrip
found 5 days ago
Select Icelandair flight, departing Thu, Aug. 28 from Reykjavik to Seattle, returning Thu, Sep. 4, priced at CA $987 found 5 days ago
Thu, Aug. 28 - Thu, Sep. 4
KEF
Reykjavik
SEA
Seattle
CA $1,049 Roundtrip, found 5 days ago
CA $1,049
Roundtrip
found 5 days ago
Select Icelandair flight, departing Thu, Aug. 28 from Reykjavik to Seattle, returning Thu, Sep. 4, priced at CA $1,049 found 5 days ago
Thu, Aug. 28 - Thu, Sep. 4
KEF
Reykjavik
SEA
Seattle
CA $1,111 Roundtrip, found 5 days ago
CA $1,111
Roundtrip
found 5 days ago
Select Icelandair flight, departing Thu, Aug. 28 from Reykjavik to Seattle, returning Thu, Sep. 4, priced at CA $1,111 found 5 days ago
Thu, Aug. 28 - Thu, Sep. 4
KEF
Reykjavik
SEA
Seattle
CA $1,178 Roundtrip, found 5 days ago
CA $1,178
Roundtrip
found 5 days ago
Select Icelandair flight, departing Thu, Aug. 28 from Reykjavik to Seattle, returning Thu, Sep. 4, priced at CA $1,178 found 5 days ago
Thu, Aug. 28 - Thu, Sep. 4
KEF
Reykjavik
SEA
Seattle
CA $1,185 Roundtrip, found 5 days ago
CA $1,185
Roundtrip
found 5 days ago
Select Air Canada flight, departing Thu, Aug. 28 from Reykjavik to Seattle, returning Thu, Sep. 4, priced at CA $1,185 found 5 days ago
Wed, Jul. 23 - Thu, Jul. 31
KEF
Reykjavik
SEA
Seattle
CA $1,191 Roundtrip, found 5 days ago
CA $1,191
Roundtrip
found 5 days ago
Select Icelandair flight, departing Wed, Jul. 23 from Reykjavik to Seattle, returning Thu, Jul. 31, priced at CA $1,191 found 5 days ago
Thu, Aug. 28 - Thu, Sep. 4
KEF
Reykjavik
SEA
Seattle
CA $1,194 Roundtrip, found 5 days ago
CA $1,194
Roundtrip
found 5 days ago
Select Air Canada flight, departing Thu, Aug. 28 from Reykjavik to Seattle, returning Thu, Sep. 4, priced at CA $1,194 found 5 days ago
Wed, Jul. 23 - Thu, Jul. 31
KEF
Reykjavik
SEA
Seattle
CA $1,236 Roundtrip, found 5 days ago
CA $1,236
Roundtrip
found 5 days ago
Select Icelandair flight, departing Wed, Jul. 23 from Reykjavik to Seattle, returning Thu, Jul. 31, priced at CA $1,236 found 5 days ago
Thu, Aug. 28 - Thu, Sep. 4
KEF
Reykjavik
SEA
Seattle
CA $1,241 Roundtrip, found 5 days ago
CA $1,241
Roundtrip
found 5 days ago
Select Virgin Atlantic flight, departing Thu, Aug. 28 from Reykjavik to Seattle, returning Thu, Sep. 4, priced at CA $1,241 found 5 days ago
Thu, Aug. 28 - Thu, Sep. 4
KEF
Reykjavik
SEA
Seattle
CA $1,254 Roundtrip, found 5 days ago
CA $1,254
Roundtrip
found 5 days ago
Select Icelandair flight, departing Thu, Aug. 28 from Reykjavik to Seattle, returning Thu, Sep. 4, priced at CA $1,254 found 5 days ago

Frequently asked questions

Are there direct flights from KEF to SEA?
If you'd prefer to fly directly from Reykjavík–Keflavík Airport to Seattle - Tacoma Intl. Airport (SEA), try Icelandair. This airline is just the ticket if you want to reach your destination with minimum fuss.
What airlines fly from Reykjavík–Keflavík Airport to SEA?
Worked out the dates for your big adventure? Want to fly nonstop from Reykjanesbær to Seattle? With Icelandair offering 30 flights each month, you'll be taking off soon enough.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.

Popular Flight Routes from Reykjavik (KEF)

Travelers at KEF love to visit these top cities. Roam to the top destinations from Reykjavik (KEF) today with the cheap prices from Travelocity!

Popular Flight Routes from Seattle (SEA)

Travelers at SEA love to visit these top cities. Roam to the top destinations from Seattle(SEA) today with the cheap prices from Travelocity!

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.