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EYW - SEA

$364 Find cheap flights from Key West to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Key West to Seattle departing on 9/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Fri 6/21
Fri 6/28

Search hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Key West to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Key West to Seattle, as well as popular online travel agencies
In the last 7 days travelers have searched 43,423,329 times on KAYAK, and here is why:

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Cheap flight deals from Key West to Seattle (EYW-SEA)

 
These are the cheapest deals for flights from Key West to Seattle currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Key West to Seattle

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Key West to Seattle.

Recent one-way flight deals from Key West to Seattle

Only flying one-way? Below are some of the best one-way flight deals from Key West to Seattle found on KAYAK recently.

Recent last minute flight deals from Key West to Seattle

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Key West to Seattle.

Recent direct flight deals from Key West to Seattle

The latest deals for direct flights from Key West to Seattle so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Key West to Seattle

Find recent round-trip train or bus tickets from Key West to Seattle.

All round-trip flight deals to Seattle

The cheapest plane tickets to Seattle found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
2:47 pm - 8:41 pmEYW-SEA
8h 54m1 stop
5:00 am - 4:20 pmSEA-EYW
8h 20m1 stop
$625American Airlines
Find Deal
Tue, Aug 6 - Fri, Aug 9
2:35 pm - 9:24 pmEYW-SEA
9h 49m1 stop
5:30 pm - 11:49 amSEA-EYW
15h 19m2 stops
$627Delta
Find Deal
Tue, Aug 6 - Fri, Aug 9
2:47 pm - 10:57 pmEYW-SEA
11h 10m1 stop
12:18 am - 2:50 pmSEA-EYW
11h 32m2 stops
$632American Airlines
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Tue, Aug 6 - Thu, Aug 8
1:41 pm - 10:57 pmEYW-SEA
12h 16m2 stops
12:18 am - 2:50 pmSEA-EYW
11h 32m2 stops
$638American Airlines
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Tue, Aug 6 - Thu, Aug 8
4:50 pm - 10:57 pmEYW-SEA
9h 07m1 stop
12:18 am - 4:10 pmSEA-EYW
12h 52m1 stop
$1,165American Airlines
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Tue, Aug 6 - Thu, Aug 8
4:50 pm - 10:57 pmEYW-SEA
9h 07m1 stop
1:14 am - 4:10 pmSEA-EYW
11h 56m1 stop
$3,411American Airlines
Find Deal
Tue, Aug 6 - Thu, Aug 8
6:05 pm - 11:56 pmEYW-SEA
8h 51m1 stop
$364Delta
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Fri, Sep 20
11:36 am - 6:52 pmEYW-SEA
10h 16m2 stops
$369American Airlines
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Fri, Sep 20
8:10 pm - 10:23 pmEYW-SEA
29h 13m2 stops
$394United Airlines
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Fri, Jun 7
10:35 am - 10:50 pmEYW-SEA
15h 15m2 stops
$403United Airlines
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Wed, Jun 5
12:46 pm - 7:27 pmEYW-SEA
9h 41m1 stop
$413American Airlines
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Wed, Jun 5
2:40 pm - 10:57 pmEYW-SEA
11h 17m1 stop
$463American Airlines
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Fri, Jun 7
8:10 pm - 12:46 amEYW-SEA
31h 36m3 stops
$540United Airlines
Find Deal
Wed, Jun 5

Flights from Key West to Seattle - Travel Insights & Trends

Get data-powered insights and trends into flights from Key West to Seattle to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Key West to Seattle?

The average price of all flights from Key West to Seattle clicked on KAYAK for each day over the last 12 months.
For Key West to Seattle, Monday is the cheapest day to fly on average and Tuesday is the most expensive. Flying from Seattle back to Key West, the best deals are generally found on Wednesday, with Friday being the most expensive.

Which airlines provide the cheapest flights from Key West to Seattle?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on Delta ($364) and American Airlines ($369). The cheapest round-trip tickets were found on American Airlines ($625) and Delta ($627).

Good to know

Cheapest flight

$364
Flight from Key West to Seattle

When to book flights from Key West to Seattle

Are your dates flexible? Find out the best times to travel from Key West to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Key West to Seattle

  • What is the cheapest flight from Key West to Seattle?

    In the last 3 days, the lowest price for a flight from Key West to Seattle was $364 for a one-way ticket and $625 for a round-trip.

  • Do I need a passport to fly between Key West and Seattle?

    No

  • Which aircraft models fly most regularly from Key West to Seattle?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Key West to Seattle?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Key West and Seattle, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Key West to Seattle, Delta or American Airlines?

    The two airlines most popular with KAYAK users for flights from Key West to Seattle are Delta and American Airlines. With an average price for the route of $838 and an overall rating of 8.0, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $655 and an overall rating of 7.3.

  • How does KAYAK find such low prices on flights from Key West to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Key West to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Key West to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Key West is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Key West to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Key West with another airline. Booking your flights between Key West and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Key West to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Key West up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airlines flying from Key West to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Key West to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Key West to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10585 reviews
8.0Entertainment
8.2Boarding
7.4Food
7.9Comfort
8.6Crew
Airline reviews

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

10.0 ExcellentDonald, May 2024FLL - SEA
Read more about Delta reviews

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

Delta is one of the best airlines I have flown

It was a Red-Eye flight so was not comfortable enough to sleep, but seat was as expected. Crew was great and in-flight entertainment was excellent. Flight was smooth

Standard economy seats on Deltas 767 were better than Alaska premium seats on their 737 MAX9; more legroom, wider seats. Entertainment was great, no ipad or phone required. Could have included a meal service.

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

The boarding process was terrible especially with an indirect flight Chicago to Seattle to San Diego was terrible talking about we overbooked a flight idk if I’d take this airline ever again we got off our flight from Chicago to Seattle and we traveled for business and they told us our connecting flight was over booked and their was no seats asking people to take a delayed next flight and they don’t tell anyone coughing to wear masks seats 30A-B were terrible during the flight no one wants to sit next to people coughing all around I don’t want to be sick traveling for work or get sick anytime it’s very upsetting the staff doesn’t take this stuff serious to tell them to wear masks when they see people coughing and sneezing

Flight was on time, the crew was personable & professional, & the plane arrived early which was nice.

This flight landed early, but deplaned late. We were stuck sitting and waiting for a gate for over an hour

My flight was very clean and the location was comfortable. The service was great. A satisfying flight!

I appreciated being upgraded. I was very disappointed with my 13 hr layover in Seattle to geg, while my friends who flew Alaska made it home as scheduled. I had to reserve a hotel on my dime.

Delayed so that missed connecting flight. Connecting flight was also delayed on the tarmac but they closed the gate before the rescheduled time.

Took off over an hour late with multiple mechanical issues. Gate agent in Dallas was lazy and was slow as molasses. Had a line 10 people long. Spirit bad..

They gave my seat away although it was a connecting flight with them and the flight was a bit delayed.

The Flight attendant had an attitude and didn't allow anyone any time to prepare for landing despite being absent throughout the entire trip

i suspect i caught flu on this flight as i could hear someone coughing a few rows back and ended up with flu a few days later. also tiresome to have to watch movies on my device by holding up smartphone screen, would have liked to have in seat display.

Horrible people at the gate, they force me to check in my carry on, even thought no one behind me has to do it. I had to get out of the airport in NY to get my bag and go thru security again on my way to Honk Kong. The worst part is the employee threatened me with loosing the flights if don’t comply.

Delayed flight, few announcements with information, no comps, cluster f boarding because zones weren’t spread out and announced loud and repeatedly, staff did their job -nothing more nothing less, annoying kids were speaking and kicking the heck out of the back of my seat and parents weren’t willing to parent… so another typical day of air travel in the US.,

Flight was delayed until Next day as crew timed out

The flight was great until towards the end when the flight attendant read an excessively long commercial for purchasing an american airlines credit card. The worst part is that we are doing a lot of traveling this year so i was actually interested in getting the credit card, but I was so annoyed with the long commercial that I completely dismissed the flight attendant bringing around the information. Next time, keep the sales pitch to 10 seconds and then pass around the brochures!!

I was able to get on standby with relative ease

Book cheap flights from Key West to Seattle

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Key West to Seattle found on KAYAK in the last 72 hours.
9/20Fri
1 stopDelta
8h 51mEYW-SEA
$364
9/20Fri
2 stopsAmerican Airlines
10h 16mEYW-SEA
$369
6/7Fri
2 stopsUnited Airlines
29h 13mEYW-SEA
$394
6/5Wed
2 stopsUnited Airlines
15h 15mEYW-SEA
$403
6/5Wed
1 stopAmerican Airlines
9h 41mEYW-SEA
$413
6/7Fri
1 stopAmerican Airlines
11h 17mEYW-SEA
$463
6/5Wed
3 stopsUnited Airlines
31h 36mEYW-SEA
$540

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Key West - Seattle Flights

Departure:

Key West (undefined)United States

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Key West

Cabin classes: