Cheap flights from Seattle to Reykjavik from $257
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 Reykjavik departing on 10/6. 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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Air Canada flights from Seattle to Reykjavik Keflavik Intl Airport
Our best Air Canada deals on Seattle to Reykjavik Keflavik Intl Airport flight tickets
United Airlines flights from Seattle to Reykjavik Keflavik Intl Airport
Our best United Airlines deals on Seattle to Reykjavik Keflavik Intl Airport flight tickets
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How to get the cheapest flight ticket from Seattle to Reykjavik Keflavik Intl Airport
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 Reykjavik Keflavik Intl Airport?
The month of October is, on average, the cheapest month to fly to Reykjavik Keflavik Intl Airport from Seattle, with most prices found around $557. If you’re not able to fly to Reykjavik Keflavik Intl Airport in October, then May is your next best option. Flight prices from Seattle to Reykjavik Keflavik Intl Airport during May average around $678.
What is the cheapest day to depart on your flight to Reykjavik Keflavik Intl Airport?
The cheapest day to depart from Seattle to Reykjavik Keflavik Intl Airport is on a Wednesday when prices can be found for as low as $646. The most expensive day to fly to Reykjavik Keflavik Intl Airport is Thursday, with ticket prices averaging around $709.
What is the cheapest time of day to depart on your flight to Reykjavik Keflavik Intl Airport?
The cheapest time of day to fly to Reykjavik Keflavik Intl Airport is in the morning when flights can be purchased for as low as $533. Flights in the afternoon are often more expensive with an average ticket price of $702.
What is the cheapest Seattle/Tacoma Intl to Reykjavik Keflavik Intl flight route?
Fly from Seattle/Tacoma Intl to Reykjavik Keflavik Intl for the best Seattle/Tacoma Intl - Reykjavik Keflavik Intl flight prices
How far in advance should I book a flight to Reykjavik Keflavik Intl Airport?
You are more likely to see cheaper flights to Reykjavik Keflavik Intl Airport from Seattle when booking 19 weeks ahead of your departure date. In general, you can expect to find flights to Reykjavik Keflavik Intl Airport for around $728 when searching 19 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Reykjavik Keflavik Intl Airport from Seattle for as low as $524 on momondo.
What cabin class options are available on Seattle/Tacoma Intl to Reykjavik Keflavik Intl flights?
There are 3 cabin classes available to choose from on Seattle/Tacoma Intl to Reykjavik Keflavik Intl 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 Reykjavik Keflavik Intl Airport flights?
You could potentially save up to 43% on your flight if you consider stops on a Seattle to Reykjavik Keflavik Intl Airport flight.
How have Seattle to Reykjavik Keflavik Intl Airport flight prices changed over time?
As of June 2025, prices for Seattle to Reykjavik Keflavik Intl Airport flights are approximately 1% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from Seattle/Tacoma Intl to Reykjavik Keflavik Intl?
WestJet, Air Canada, and United Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Reykjavik Keflavik Intl
What airlines fly to Reykjavik Keflavik Intl Airport?
Icelandair, Air Canada and Delta are the top three most popular airlines that fly to Reykjavik Keflavik Intl Airport from Seattle according to our data. Icelandair is the first choice among our users, with 95% of people opting to fly with this airline when traveling to Reykjavik Keflavik Intl Airport. Keep in mind that there are 3 different airlines that fly to Reykjavik Keflavik Intl Airport on a routine basis, so you have a few additional options to choose from.
How many flights depart from Seattle to Reykjavik Keflavik Intl Airport on average per day?
The number of flights available between Seattle and Reykjavik Keflavik Intl Airport is 5 per day as of June 2025. The most frequent departure time is 3:00PM, with 66% of daily flights leaving in the evening.
How many flights depart from Seattle to Reykjavik Keflavik Intl Airport on average per week?
As of June 2025, there are 40 flights per week flying from Seattle to Reykjavik Keflavik Intl Airport. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.
When to book flights from Seattle to Reykjavik Keflavik Intl Airport
Cheap Seattle to Reykjavik Keflavik Intl Airport (SEA to KEF) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to Reykjavik Keflavik Intl Airport
How far is Seattle/Tacoma Intl to Reykjavik Keflavik Intl by plane?
The distance between Seattle/Tacoma Intl and Reykjavik Keflavik Intl is about 3599.8 mi. A reasonable flight in good conditions will take 7h 25m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Reykjavik Keflavik Intl Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Reykjavik Keflavik Intl Airport were last updated today.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Reykjavik Keflavik Intl Airport?
There are 3 operators available for flights from Seattle/Tacoma Intl Airport to Reykjavik Keflavik Intl Airport as of June 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Reykjavik Keflavik Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Reykjavik Keflavik Intl Airport.
What documentation or ID do you need to fly to Reykjavik Keflavik Intl Airport?
The necessary travel and health documents for your Reykjavik Keflavik Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Seattle to Reykjavik Keflavik Intl Airport?
Based on momondo bookings for flights between Seattle and Reykjavik Keflavik Intl Airport, the leading plane model is Airbus A330-900neo, making up 20.33% of the total bookings. Other popular models include Boeing 787-10 Dreamliner with 17.95%, Boeing 777-300ER with 13.55%, and Airbus A321neo with 10.16%.
What is the most popular airline from Seattle to Reykjavik Keflavik Intl Airport?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Seattle to Reykjavik Keflavik Intl Airport is Icelandair (95% of total bookings). The next most popular airlines are Air Canada (3%) and Delta (2%).
Best airlines flying from Seattle to Reykjavik Keflavik Intl Airport
Compare and see reviews for airlines that fly from Seattle to Reykjavik Keflavik Intl Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $323 | Free Cancellation | Rating 8.0 7,950 reviews | |||
| PriceFrom $449 | Free Cancellation | Rating 7.1 9,531 reviews | |||
| PriceFrom $463 | Free Cancellation | Rating 7.0 499 reviews |
Icelandair Flights From Seattle to Reykjavik Keflavik Intl Airport
Icelandair is one of the most popular airlines flying from Seattle to Reykjavik Keflavik Intl Airport, operating 19 flights/week on average for this route. A good Icelandair flight deal for Seattle to Reykjavik Keflavik Intl Airport starts from $463 round-trip, up to an average price of $730. Our users have rated Icelandair at 7.0/10.
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Why should I use momondo to find a flight deal from Seattle to Reykjavik?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Reykjavik from Seattle.
Can I find flights from Seattle to Reykjavik with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Seattle to Reykjavik flights to just show those with flexible booking policies.
How can momondo help me find flights from Seattle to Reykjavik?
Once all potential Seattle to Reykjavik 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 Reykjavik right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Seattle to Reykjavik flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.