Flying from Seattle, WA to Keflavik International can be expensive. Our search helps you compare cheap flights, airfare deals, and flight tickets across airlines and agencies so you can book at the best price.
We scan trusted travel agencies and airline booking systems for the route Seattle, WA - Keflavik International (SEA - KEF). We do not sell tickets or add fees - you choose where to buy.
Airfares vary by date, time, and airport. Use filters to find the best option by departure/arrival time, number of stops, airline or alliance, and booking channel.
If your dates are flexible, check the low-fare calendar to find the cheapest days. Booking round-trip in one order often reduces fees, and prices usually rise as departure approaches.
We also recommend you to look through the prices for return tickets from Keflavik International to Seattle, WA.
Airlines are flying from Seattle, WA to Keflavik International
| Icelandair |
Popular flights from Seattle, WA
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Frequently asked questions about flights from Seattle, WA to Keflavik International
How long does the flight from Seattle, WA to Keflavik International take?
Flight duration from Seattle, WA to Keflavik International varies by route, airline, and number of stops. Direct flights are faster; connecting flights may take longer. Use our search to compare options and see exact durations for your dates.
Are there direct flights from Seattle, WA to Keflavik International?
Availability of direct flights from Seattle, WA to Keflavik International depends on the route and season. Use our search and filter by "Direct" or "Non-stop" to see only direct options. We compare offers from many airlines and agencies.
Which airlines fly from Seattle, WA to Keflavik International?
Several airlines may operate flights from Seattle, WA to Keflavik International. On this page you can see airlines that serve this route. Our search compares prices across airlines and agencies so you can choose the best offer. We do not sell tickets; you book directly with the airline or agency.
What is the cheapest month to fly from Seattle, WA to Keflavik International?
Prices from Seattle, WA to Keflavik International vary by month and demand. On this page you can see average round-trip prices by month. Use the low-fare calendar and monthly table to find the cheapest dates. Booking in advance and avoiding peak seasons often helps get the best price.