SEA - EYW

$268 Find Cheap Flights from Seattle to Key West

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Key West departing on 6/13. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Key West

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Key West, 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 Seattle to Key West, as well as popular online travel agencies
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Flights Deals

Cheap Flight Deals from Seattle to Key West (SEA-EYW)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Key West that are departing in the next months. 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 Seattle to Key West

KAYAK's recommended round-trip deals from the most popular airlines that fly from Seattle to Key West.
Discover the best prices for you by selecting your travel dates on KAYAK.
Delta Logo
6:00 am - 7:46 pmSEA-EYW
10h 46m1 stop
Delta Logo
7:00 am - 2:45 pmEYW-SEA
10h 45m1 stop
$389Delta
Find Deal
Wed, Aug 27 - Sun, Aug 31
American Airlines Logo
12:24 am - 10:50 amSEA-EYW
7h 26m1 stop
American Airlines Logo
2:31 pm - 9:13 pmEYW-SEA
9h 42m1 stop
$391American Airlines
Find Deal
Tue, Jun 3 - Wed, Jun 11
American Airlines Logo
12:24 am - 10:50 amSEA-EYW
7h 26m1 stop
American Airlines Logo
2:31 pm - 9:13 pmEYW-SEA
9h 42m1 stop
$392American Airlines
Find Deal
Tue, Jun 3 - Wed, Jun 11
American Airlines Logo
5:15 am - 7:21 pmSEA-EYW
11h 06m2 stops
American Airlines Logo
2:31 pm - 9:09 pmEYW-SEA
9h 38m1 stop
$394American Airlines
Find Deal
Wed, Jul 16 - Wed, Jul 23
American Airlines Logo
5:22 am - 6:49 pmSEA-EYW
10h 27m2 stops
American Airlines Logo
2:31 pm - 9:13 pmEYW-SEA
9h 42m1 stop
$396American Airlines
Find Deal
Wed, Jun 4 - Wed, Jun 11
American Airlines Logo
5:22 am - 6:49 pmSEA-EYW
10h 27m2 stops
American Airlines Logo
2:31 pm - 9:13 pmEYW-SEA
9h 42m1 stop
$397American Airlines
Find Deal
Wed, Jun 4 - Wed, Jun 11
American Airlines Logo
12:24 am - 10:50 amSEA-EYW
7h 26m1 stop
American Airlines Logo
2:31 pm - 9:13 pmEYW-SEA
9h 42m1 stop
$429American Airlines
Find Deal
Tue, Jun 3 - Wed, Jun 11
United Airlines Logo
10:15 pm - 6:05 pmSEA-EYW
16h 50m2 stops
United Airlines Logo
8:45 am - 10:30 pmEYW-SEA
16h 45m2 stops
$482United Airlines
Find Deal
Wed, Jun 4 - Wed, Jun 11
United Airlines Logo
12:35 pm - 6:05 pmSEA-EYW
26h 30m3 stops
United Airlines Logo
8:45 am - 11:00 pmEYW-SEA
17h 15m2 stops
$487United Airlines
Find Deal
Wed, Jun 4 - Wed, Jun 11
Delta Logo
11:40 pm - 10:53 amSEA-EYW
8h 13m1 stop
Delta Logo
6:29 pm - 11:58 pmEYW-SEA
8h 29m1 stop
$537Delta
Find Deal
Tue, Jun 24 - Thu, Jun 26
Useful Info

KAYAK's insights & trends for Seattle to Key West flights

Get data-powered insights and trends into flights from Seattle to Key West 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 Seattle to Key West?

The average price of all round-trip flights from Seattle to Key West clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Key West on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Friday is the most expensive day to fly from Seattle to Key West. For your return ticket, we recommend flying on a Friday and avoiding Tuesdays for the best deals.

What is the cheapest month to fly from Seattle to Key West?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Key West, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Key West is January, where tickets cost $483 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $1,115 and $843 respectively.

How far in advance should I book a flight from Seattle to Key West?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Key West, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Key West, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low seasonJune
High seasonFebruary
Cheapest flight$268
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly and prices are also 15% lower on average.
Flight from Seattle to Key West

When to book flights from Seattle to Key West

Are your dates flexible? Find out the best times to travel from Seattle to Key West 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 Seattle to Key West

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

    In the last 3 days, the lowest price for a flight from Seattle to Key West was $268 for a one-way ticket and $389 for a round-trip.

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

    No

  • Which airports will I be using when flying from Seattle to Key West?

    On your way to Key West, you’ll fly out from Seattle/Tacoma Intl. You’ll be landing at Key West.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Seattle to Key West are Delta and United Airlines. With an average price for the route of $873 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $507 and an overall rating of 7.4.

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

    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 Seattle to Key West.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Key West from Seattle 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 Seattle to Key West?

    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 Key West with an airline and back to Seattle with another airline. Booking your flights between Seattle and EYW 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 Seattle to Key West?

    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 Key West from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top 3 airlines serving from Seattle to Key West

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Key West. 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 Seattle to Key West? 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 7936 reviews
7.3Food
7.9Comfort
8.5Crew
7.9Entertainment
8.2Boarding
Airline reviews

Crew was friendly Love the entertainment in the seat head rest.

10.0 ExcellentRenee, Apr 2025DTW - MCO
Read more Delta reviews

Crew was friendly Love the entertainment in the seat head rest.

Great staff. Wifi is terrible. Signing up for skylines is a painstaking process. Had to call customer service just to get my flight itinerary and confirmation sent to me. Consistent delays. A well staffed company that is run so poorly. Upper management needs to be renewed.

The crew was wonderful and attentive. The seats near exit row were restrictive. Offer healthy snacks please

Other then mechanical/ computer problem and 3.5 hours flight delay the flight was great. I guess that what happened when you fly an old airplane now a day.

Coach seating is debilitating, neither my husband or I can walk the following day

Don't waste your money or points on first class. Delta first class is a joke. The seats were rickety, the food was awful, and nothing worked, wifi, my light, the power plug - and it was dirty - the fold out table was gross. For 2-3 hours, tough it out in Economy.

It was NOT pleasant. Started from checking our luggage to the last time getting off the plane. The crew was not friendly, the food was horrible and the seats were too close to each other that I got a bruise on my knee.

Loyal Delta traveler, but last nights flight was a train wreck. Seated in 1B after multiple delays. Then we couldn’t takeoff because of an issue with the passenger that was ‘not in compliance’ and had to deplane along with the threat if they did not deplane, all the passengers would be required to do so. Finally they were escorted off, but the experience threw off the crew. Disruptive for everyone. Service was a mess, televisions didn’t work, bathroom door kept swinging open during the entire flight whenever empty …

My flight was cancelled twice and the third time I tried to rebook it online I cancelled the flight because it looked like I would get a refund to my credit card. Instead I now have a credit. I was also on hold for three hours waiting for a representative and then disconnected. I will never fly delta again.

The flight was canceled two hours before departure, it took over five hours to rebook us on another flight.

A bit rush for transit. Food and entertainment are not available

Multiple delays and not straight answer from the United team

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

leg space better than expected. two washrooms for one plane isn't enough.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

Would have thought that they would gas up plane before everyone got on board

Fine. On time, cabin service was fine, bag arrived. All good. Flying into DCA so did not collide with any helicopters, which is also good. Horrid incident that could have and should have been prevented.

Standard. No different than a discount carrier on a short trip.

Everything was great except it became so hot on the plane I couldn’t sleep on my red eye flight. It didn’t really cool down till we started descending.

The flights were terribly delayed and then cancelled which forced us booking another night at the hotel. Very poor management from American Airlines

Crew was late. Baggage was late. 2hs inside the plane waiting fro de-icing and traffic. A 3:30hs flight ended up being almost 6hs inside the airplane.

The only thing is if Wi-Fi is available after you land and taxi to the gate. It takes forever to get to the gate, and having the Wi-Fi continue would be great to bide the time at least 5 minutes before you arrive at the entrance. That is my only comment; otherwise, everything was good.

Checking in at the counter was very disappointing. The lady had a very bad attitude and smart at me. She had no smile, did not greet me by name, or acknowledge me as a valued customer. Poor reflection of the airline.

Miami lounges were overcrowded and we were unable to get in. We only had a short time. But the banks are too tight in all American hubs

Everything you need to know for your flight from Seattle to Key West

Information on your arrival and departure airports

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