CA $606 Cheap Flights from Seattle (SEA) to Reykjavik (KEF)

View CA $606 flight on Fri, Sep 25, 2026Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Keflavik International Airport (KEF)

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Cheap flights from Seattle (SEA) to Reykjavik (KEF)

Prices were available within the past 7 days and start at CA $606 for one-way flights and CA $643 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Virgin Atlantic
Fri, Apr 24 - Wed, Apr 29
SEA
Seattle
KEF
Reykjavik
CA $643 Roundtrip, found 1 day ago
CA $643
Roundtrip
found 1 day ago
Select Virgin Atlantic flight, departing Fri, Apr 24 from Seattle to Reykjavik, returning Wed, Apr 29, priced at CA $643 found 1 day ago
Delta
Mon, Apr 20 - Fri, Apr 24
SEA
Seattle
KEF
Reykjavik
CA $648 Roundtrip, found 6 days ago
CA $648
Roundtrip
found 6 days ago
Select Delta flight, departing Mon, Apr 20 from Seattle to Reykjavik, returning Fri, Apr 24, priced at CA $648 found 6 days ago
Icelandair
Wed, Apr 22 - Wed, Apr 29
SEA
Seattle
KEF
Reykjavik
CA $650 Roundtrip, found 5 days ago
CA $650
Roundtrip
found 5 days ago
Select Icelandair flight, departing Wed, Apr 22 from Seattle to Reykjavik, returning Wed, Apr 29, priced at CA $650 found 5 days ago
Icelandair
Wed, Apr 29 - Tue, May 12
SEA
Seattle
KEF
Reykjavik
CA $666 Roundtrip, found 10 hours ago
CA $666
Roundtrip
found 10 hours ago
Select Icelandair flight, departing Wed, Apr 29 from Seattle to Reykjavik, returning Tue, May 12, priced at CA $666 found 10 hours ago
Icelandair
Tue, Apr 28 - Fri, May 8
SEA
Seattle
KEF
Reykjavik
CA $670 Roundtrip, found 5 days ago
CA $670
Roundtrip
found 5 days ago
Select Icelandair flight, departing Tue, Apr 28 from Seattle to Reykjavik, returning Fri, May 8, priced at CA $670 found 5 days ago
Icelandair
Sat, Apr 25 - Tue, May 5
SEA
Seattle
KEF
Reykjavik
CA $670 Roundtrip, found 5 days ago
CA $670
Roundtrip
found 5 days ago
Select Icelandair flight, departing Sat, Apr 25 from Seattle to Reykjavik, returning Tue, May 5, priced at CA $670 found 5 days ago
Delta
Fri, Apr 24 - Wed, Apr 29
SEA
Seattle
KEF
Reykjavik
CA $682 Roundtrip, found 1 day ago
CA $682
Roundtrip
found 1 day ago
Select Delta flight, departing Fri, Apr 24 from Seattle to Reykjavik, returning Wed, Apr 29, priced at CA $682 found 1 day ago
Delta
Fri, Apr 17 - Mon, Apr 20
SEA
Seattle
KEF
Reykjavik
CA $684 Roundtrip, found 1 hour ago
CA $684
Roundtrip
found 1 hour ago
Select Delta flight, departing Fri, Apr 17 from Seattle to Reykjavik, returning Mon, Apr 20, priced at CA $684 found 1 hour ago
Alaska Airlines
Fri, May 29 - Sun, Jun 14
SEA
Seattle
KEF
Reykjavik
CA $690 Roundtrip, found 10 hours ago
CA $690
Roundtrip
found 10 hours ago
Select Alaska Airlines flight, departing Fri, May 29 from Seattle to Reykjavik, returning Sun, Jun 14, priced at CA $690 found 10 hours ago
KLM
Tue, May 5 - Sat, May 23
SEA
Seattle
KEF
Reykjavik
CA $789 Roundtrip, found 12 hours ago
CA $789
Roundtrip
found 12 hours ago
Select KLM flight, departing Tue, May 5 from Seattle to Reykjavik, returning Sat, May 23, priced at CA $789 found 12 hours ago

Alternative airports near Reykjavik

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Keflavik Intl. KEF. Cheapest option available. Average driving time to city centre is 45 minutes. Flights from CA $688
KEF
Keflavik Intl.
Cheapest
Average driving time to city centre45 min
Flights from CA $688

Find the cheapest month to fly from Seattle (SEA) to Reykjavik (KEF)

April is typically the cheapest month to fly

From CA $575 - CA $1,606 per traveller.

Frequently asked questions

How much is a flight from Sea-Tac Airport to KEF?
The lowest price advertised for a round-trip flight between SEA and KEF is CA $643. But you better act quick. This price is based on fares listed within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Sea-Tac Airport to Reykjavík–Keflavík Airport?
Every air carrier has its own terms and conditions. If you do decide to cancel, follow the instructions on our Customer Service Portal.
How do I find cheap flights from Seattle - Tacoma Intl. Airport (SEA) to KEF that have flexible change policies?
Use our "No change fees" filter to find flexible ticketing options for your flight from Seattle - Tacoma Intl. Airport (SEA) to Keflavik Intl. Airport (KEF). This allows you to secure a great price ahead of time and still have the freedom to reschedule without any extra fees. If the new flight costs more, you'll just cover the difference.
How many hours is the flight from Seattle - Tacoma Intl. Airport (SEA) to KEF?
To comfortably while away the 13 hours and 25 minutes flight time between Sea-Tac Airport and KEF, it's wise to have a plan. A tablet filled with your favourite playlists is a good place to start.
How far is the flight from Seattle - Tacoma Intl. Airport (SEA) to Reykjavík–Keflavík Airport?
With a flight distance of 5,800 kilometres from Sea-Tac Airport to Keflavik Intl. Airport (KEF), this is a long-haul flight. Be sure to drink plenty of water and move your feet and legs every so often.
Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to Keflavik Intl. Airport (KEF)?
Check out Icelandair (FI) if you want to fly directly from Seattle - Tacoma Intl. Airport (SEA) to KEF. This airline offers 30 flights every month, so you're sure to find one that suits your schedule.
Are SEA to Reykjavík–Keflavík Airport flight tickets cheaper when they're purchased at the last minute?
Booking your trip from Sea-Tac Airport to Keflavik Intl. Airport (KEF) last minute could be your ticket to an awesome deal. However, you might miss out on a flight altogether! If you'd rather play it safe, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains up to a year in advance. If your preferred air carrier hasn't released tickets yet, check back frequently as deals are updated all the time on Expedia.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Keflavik Intl.
Airlines serving
Air Canada, Air France, Alaska Airlines, American Airlines, British Airways, Brussels Airlines, Delta, Finnair, Icelandair, KLM, Lufthansa, Scandinavian Airlines, United, Virgin Atlantic, WestJet
Roundtrip price
CA $643
Distance
5776 km
Average flight time
14 hours 30 mins

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