The cheapest times to fly from EYW to SEA are
- January 8th to February 25th
- April 23rd to May 13th
- July 9th to July 22nd
- August 6th to November 11th
based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from EYW to SEA is mid to late September. Prices can be as high as $1044 for Sunday flights during mid to late November, or as low as $303 for Tuesday flights around mid to late September.
When to Fly to Seattle
Flying from Key West, FL (EYW) to Seattle, WA (SEA) will usually cost between $352 to $850 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid to late September with an average ticket price of $355. Due to high demand the most expensive time to fly is mid to late November, with an average price of $721. Planning your trip to low-cost times can easily save you $366 on economy flights and even more on first-class flights. Generally, any price below $512 can be considered a good price for a round-trip EYW to SEA flight.
See below for a graph of average weekly prices for the EYW to SEA route. All prices are for round-trip tickets in USD.
Compared to other flights, the EYW to SEA flight is cheaper than the average and costs less than the average flight leaving from Key West. The average price per mile (for a direct flight) is $0.12, which is far below average.
Flight Prices by Day of the Week
Tuesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $255 (37%) on this flight.
Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $433. Return trip prices are from the SEA to EYW flight, and often highlight the quality of our data in showing the same trend.
Departing Prices by Day
Return Trip Prices by Day
Nonstop Flights and Layovers
Travelers looking to fly from EYW to SEA can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 5 hour 52 minutes may not be realistic.
Flight Questions Answered
Still have questions about flying from EYW to SEA? We’ve got answers.
Which airlines fly this route?
You can find 27 major airlines flying this route most often: Aer Lingus, Air Canada, Air Europa, Air France, Alaska, American, Austrian, British Airways, Brussels Airlines, Condor, Delta, Eurowings, Finnair, Iberia, Icelandair, KLM, LOT, Lufthansa, Norwegian, SAS, Silver Airways, Singapore Airlines, SWISS, Tap Air Portugal, Turkish Airlines, United, WestJet, and potentially more during busy seasons.
How far away is it from Seattle/Tacoma International Airport to Key West International Airport?
The distance between the two airports is roughly 2717 miles or 4373 kilometers.
How long does it take to fly from EYW to SEA?
The real-world flight time for a nonstop EYW to SEA flight is about 5 hour 52 minutes.
How many flights go between Key West, FL and Seattle, WA?
It depends on the day of the week and the date, but a typical day might have around 70 available flights from EYW to SEA.
Airport Location Info
|Origination airport name||Key West International Airport|
|City||Key West, FL|
|Country||the United States|
|Destination airport name||Seattle/Tacoma International Airport|
|Country||the United States|
Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.