S$571 Cheap Flights from Seattle to Reykjavik

View S$571 flight on Sun, 29 Mar, 2026Opens in a new window

Popular airlines from Seattle to Reykjavik (KEF-Keflavik Intl.)

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Cheap Flights from Seattle to Reykjavik (SEA-KEF)

Prices were available within the past 7 days and start at S$571 for one-way flights and S$1,110 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, 16 Jun - Sat, 20 Jun
SEA
Seattle
KEF
Reykjavik
S$1,110 Return, found 5 days ago
S$1,110
Return
found 5 days ago
Select Delta flight, departing Tue, 16 Jun from Seattle to Reykjavik, returning Sat, 20 Jun, priced at S$1,110 found 5 days ago
Delta
Tue, 16 Jun - Sat, 20 Jun
SEA
Seattle
KEF
Reykjavik
S$1,146 Return, found 5 days ago
S$1,146
Return
found 5 days ago
Select Delta flight, departing Tue, 16 Jun from Seattle to Reykjavik, returning Sat, 20 Jun, priced at S$1,146 found 5 days ago
Delta
Tue, 16 Jun - Sat, 20 Jun
SEA
Seattle
KEF
Reykjavik
S$1,182 Return, found 5 days ago
S$1,182
Return
found 5 days ago
Select Delta flight, departing Tue, 16 Jun from Seattle to Reykjavik, returning Sat, 20 Jun, priced at S$1,182 found 5 days ago
Delta
Tue, 16 Jun - Sat, 20 Jun
SEA
Seattle
KEF
Reykjavik
S$1,218 Return, found 5 days ago
S$1,218
Return
found 5 days ago
Select Delta flight, departing Tue, 16 Jun from Seattle to Reykjavik, returning Sat, 20 Jun, priced at S$1,218 found 5 days ago
Virgin Atlantic
Tue, 16 Jun - Sat, 20 Jun
SEA
Seattle
KEF
Reykjavik
S$1,393 Return, found 5 days ago
S$1,393
Return
found 5 days ago
Select Virgin Atlantic flight, departing Tue, 16 Jun from Seattle to Reykjavik, returning Sat, 20 Jun, priced at S$1,393 found 5 days ago
Virgin Atlantic
Tue, 16 Jun - Sat, 20 Jun
SEA
Seattle
KEF
Reykjavik
S$1,429 Return, found 5 days ago
S$1,429
Return
found 5 days ago
Select Virgin Atlantic flight, departing Tue, 16 Jun from Seattle to Reykjavik, returning Sat, 20 Jun, priced at S$1,429 found 5 days ago
United
Tue, 16 Jun - Sat, 20 Jun
SEA
Seattle
KEF
Reykjavik
S$1,456 Return, found 5 days ago
S$1,456
Return
found 5 days ago
Select United flight, departing Tue, 16 Jun from Seattle to Reykjavik, returning Sat, 20 Jun, priced at S$1,456 found 5 days ago
Virgin Atlantic
Tue, 16 Jun - Sat, 20 Jun
SEA
Seattle
KEF
Reykjavik
S$1,465 Return, found 5 days ago
S$1,465
Return
found 5 days ago
Select Virgin Atlantic flight, departing Tue, 16 Jun from Seattle to Reykjavik, returning Sat, 20 Jun, priced at S$1,465 found 5 days ago
Air Canada
Tue, 16 Jun - Sat, 20 Jun
SEA
Seattle
KEF
Reykjavik
S$1,546 Return, found 5 days ago
S$1,546
Return
found 5 days ago
Select Air Canada flight, departing Tue, 16 Jun from Seattle to Reykjavik, returning Sat, 20 Jun, priced at S$1,546 found 5 days ago
Lufthansa
Tue, 16 Jun - Sat, 20 Jun
SEA
Seattle
KEF
Reykjavik
S$1,675 Return, found 5 days ago
S$1,675
Return
found 5 days ago
Select Lufthansa flight, departing Tue, 16 Jun from Seattle to Reykjavik, returning Sat, 20 Jun, priced at S$1,675 found 5 days ago

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

October is typically the cheapest month to fly

From S$501 - S$1,164 per traveller.
Seattle to Reykjavik route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Keflavik Intl.
Return price
S$1,110
Distance
5776 km
Average flight time
7 hours 40 mins

Perfect flights from Seattle to Reykjavik

Your Journey from Seattle to Reykjavik

Start your unforgettable journey with Expedia. Our broad selection of flights from Seattle to Reykjavik caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including Delta, United, Lufthansa, Virgin Atlantic, KLM, Air Canada. Our selection of flights from Seattle - Tacoma Intl. to Keflavik Intl. caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Seattle to Reykjavik Flights

Experience the joy of finding cheap flights from Seattle - Tacoma Intl. to Keflavik Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$571 and roundtrip prices from S$1,110*.
 

Pre-Flight Essentials

Ensure a smooth journey from Seattle to Reykjavik with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Reykjavik

Picture yourself stepping off the plane in Reykjavik and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Seattle to Reykjavik Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Seattle to Reykjavik.
 

Beyond the Flight – Exploring Reykjavik

With Expedia, your adventure extends beyond the flight. Explore Reykjavik at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Seattle to Reykjavik with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Seattle to Reykjavik with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

Frequently asked questions

How much is a flight from Sea-Tac Airport to Reykjavík–Keflavík Airport?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price available for a round-trip flight from SEA to Reykjavík–Keflavík Airport was S$1,110. Fares this good don't last long, so make sure you book yours today. 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 to Keflavik Intl. Airport (KEF)?
Each 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 Keflavik Intl. Airport (KEF) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Sea-Tac Airport to KEF flights, you'll see a "no change fees" filter for you to select.
How far is the flight from SEA to Reykjavík–Keflavík Airport?
With a flight distance of 5,800 kilometres between Sea-Tac Airport and Keflavik Intl. Airport (KEF), this is a long-haul flight. Make sure you stay hydrated and move your legs from time to time.
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 top airline operates 30 flights monthly, so you're sure to find one that fits your travel plans.
Are Sea-Tac Airport to Reykjavík–Keflavík Airport flight tickets cheaper when they're purchased at the last minute?
It is possible to pick up an awesome last-minute deal from Seattle - Tacoma Intl. Airport (SEA) to Keflavik Intl. Airport (KEF), but it can also be hit-or-miss. As many airlines release seats up to 12 months in advance, it's worth keeping an eye on fares early and being ready to book when you spot a bargain. Expedia compares air carrier prices and updates flight deals often, so you can be certain you're always getting the latest offers.

Explore a world of travel with Expedia

*Available to Expedia members.