HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from Seattle to Key West (SEA - EYW) from $282

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/22. 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.
SEA — EYW
Jun 4 — Jun 111
From?
To?
Tue 6/4
Tue 6/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

The best prices from Seattle/Tacoma Intl to Key West are usually found in August or January, booked 42 days in advance, depart on a Wednesday or Saturday and return on a Tuesday

Cheap flight deals from Seattle to Key West

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Key West (EYW). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 30, 2024.

Popular in

April

Cheapest in

August

Round-trip from

$374

One-way from

$282
High demand for flights, 10% potential price rise
Search Deals
Best time to find cheap flights, 15% potential price drop
Search Deals
From Seattle/Tacoma Intl to Key West
Search Deals
One-way flight from Seattle/Tacoma Intl to Key West
Search Deals

What is the cheapest day to fly round-trip from Seattle to Key West?

Users have found that leaving on a Tuesday can be a cost-effective option. It’s possible to save up to 57% on your flight compared to booking on days when demand is much higher.

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

Travelers have found it’s best to book a flight 42 days in advance to save up to 91% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 42 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Seattle to Key West 1-2 weeks in advance for as low as $659, or $905 for flights within the next 24 hours.

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

August is one of the best times of the year to fly to Key West from Seattle. Prices for August average $661 per person but you can even find prices for as low as $443. The most expensive prices can be found in the month of April. Opting for a August flight can save you 11% on your journey compared to booking in April

What is the cheapest time of day to fly from SEA to EYW?

One of the essential ways to save on airfare from Seattle to Key West is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 2% on airfare.

Cheap American Airlines flights from Seattle to Key West

Explore cheap flight options specifically provided by American Airlines for the route between Seattle and Key West. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,765,679 searches. Data last updated May 30, 2024.
Take a peek at the cheapest American Airlines flights we've detected traveling from Seattle to Key West. Make sure to check back often as deals are often changing.
Tue 10/15:00 amSEA - EYW
1 stop8h 43mAmerican Airlines
Wed 10/911:43 amEYW - SEA
1 stop10h 19mAmerican Airlines
Deal found 5/29$475
Sat 8/2411:58 pmSEA - EYW
1 stop9h 06mAmerican Airlines
Sat 8/314:05 pmEYW - SEA
1 stop8h 35mAmerican Airlines
Deal found 5/29$477
Tue 10/15:00 amSEA - EYW
1 stop8h 43mAmerican Airlines
Wed 10/911:36 amEYW - SEA
2 stops10h 26mAmerican Airlines
Deal found 5/29$480
Fri 8/2312:21 amSEA - EYW
2 stops11h 29mAmerican Airlines
Sat 8/313:02 pmEYW - SEA
1 stop10h 12mAmerican Airlines
Deal found 5/29$483
Mon 9/1610:10 pmSEA - EYW
2 stops12h 00mAmerican Airlines
Fri 9/201:46 pmEYW - SEA
2 stops10h 18mAmerican Airlines
Deal found 5/30$485
Sun 9/1511:59 pmSEA - EYW
2 stops11h 26mAmerican Airlines
Fri 9/201:46 pmEYW - SEA
2 stops12h 10mAmerican Airlines
Deal found 5/29$487
Fri 8/2312:21 amSEA - EYW
2 stops9h 44mAmerican Airlines
Sat 8/3111:30 amEYW - SEA
2 stops13h 10mAmerican Airlines
Deal found 5/29$548
Thu 7/48:44 pmSEA - EYW
1 stop10h 51mAmerican Airlines
Thu 7/114:24 pmEYW - SEA
1 stop9h 33mAmerican Airlines
Deal found 5/29$597
Sun 10/611:59 pmSEA - EYW
1 stop10h 11mAmerican Airlines
Fri 10/111:31 pmEYW - SEA
1 stop10h 12mAmerican Airlines
Deal found 5/30$600

Cheap United Airlines flights from Seattle to Key West

Explore cheap flight options specifically provided by United Airlines for the route between Seattle and Key West. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,765,679 searches. Data last updated May 30, 2024.
Have a look at some of the cheapest available United Airlines flights departing from Seattle and landing in Key West. Make sure to examine the flight information before completing your reservation.
Tue 10/112:30 pmSEA - EYW
2 stops22h 55mUnited Airlines
Tue 10/811:30 amEYW - SEA
2 stops14h 17mUnited Airlines
Deal found 5/28$533
Tue 10/17:15 amSEA - EYW
2 stops28h 10mUnited Airlines
Wed 10/911:30 amEYW - SEA
2 stops34h 42mUnited Airlines
Deal found 5/29$678
Mon 7/83:37 pmSEA - EYW
2 stops19h 58mUnited Airlines
Sat 7/1311:20 amEYW - SEA
3 stops23h 42mUnited Airlines
Deal found 5/30$718
Tue 6/256:35 pmSEA - EYW
2 stops17h 00mUnited Airlines
Sat 6/299:00 amEYW - SEA
2 stops16h 45mUnited Airlines
Deal found 5/29$739
Mon 7/83:37 pmSEA - EYW
2 stops19h 58mUnited Airlines
Sat 7/137:20 pmEYW - SEA
2 stops32h 34mUnited Airlines
Deal found 5/30$741
Sun 7/712:30 amSEA - EYW
2 stops11h 05mUnited Airlines
Sat 7/1311:20 amEYW - SEA
3 stops23h 42mUnited Airlines
Deal found 5/30$770
Sun 7/712:30 amSEA - EYW
2 stops11h 05mUnited Airlines
Sat 7/137:20 pmEYW - SEA
2 stops32h 34mUnited Airlines
Deal found 5/30$794
Thu 6/62:22 pmSEA - EYW
2 stops16h 33mUnited Airlines
Tue 6/119:00 amEYW - SEA
2 stops16h 50mUnited Airlines
Deal found 5/29$814
Thu 6/63:35 pmSEA - EYW
2 stops15h 20mUnited Airlines
Tue 6/113:20 pmEYW - SEA
1 stop10h 38mUnited Airlines
Deal found 5/29$852

Cheap Seattle to Key West flights in May & June 2024

Find cheap flight options from Seattle to Key West specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,765,679 searches. Prices were last updated on May 30, 2024.
Listed are some of the best fares we've found on flights departing from Seattle to Key West in 2024. Check back in a little while for more flight options.
Sun 6/29:35 amSEA - EYW
2 stops27h 45mMultiple Airlines
Thu 6/62:41 pmEYW - SEA
3 stops20h 51mMultiple Airlines
Deal found 5/29$665
Sun 6/29:35 amSEA - EYW
2 stops27h 45mMultiple Airlines
Thu 6/62:41 pmEYW - SEA
2 stops20h 27mMultiple Airlines
Deal found 5/29$700
Tue 6/256:35 pmSEA - EYW
2 stops17h 00mUnited Airlines
Sat 6/299:00 amEYW - SEA
2 stops16h 45mUnited Airlines
Deal found 5/29$739
Thu 6/62:22 pmSEA - EYW
2 stops16h 33mUnited Airlines
Tue 6/119:00 amEYW - SEA
2 stops16h 50mUnited Airlines
Deal found 5/29$814
Mon 6/2412:20 amSEA - EYW
1 stop9h 41mAmerican Airlines
Sat 6/295:47 pmEYW - SEA
1 stop9h 12mAmerican Airlines
Deal found 5/29$848
Thu 6/63:35 pmSEA - EYW
2 stops15h 20mUnited Airlines
Tue 6/113:20 pmEYW - SEA
1 stop10h 38mUnited Airlines
Deal found 5/29$852
Tue 6/258:44 pmSEA - EYW
1 stop11h 01mAmerican Airlines
Sat 6/2911:15 amEYW - SEA
1 stop15h 44mAmerican Airlines
Deal found 5/29$855
Sat 6/111:17 pmSEA - EYW
1 stop11h 52mUnited Airlines
Wed 6/123:20 pmEYW - SEA
2 stops19h 42mUnited Airlines
Deal found 5/30$857
Sun 6/29:35 amSEA - EYW
3 stops27h 45mMultiple Airlines
Thu 6/62:41 pmEYW - SEA
3 stops20h 51mMultiple Airlines
Deal found 5/29$863

Seattle to Key West 2024 flight deals

Discover exclusive flight deals for travel between Seattle and Key West in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,765,679 searches. Data last updated May 30, 2024.
Listed are some of the best fares we've found on flights departing from Seattle to Key West in 2024. Check back in a little while for more flight options.
Tue 10/15:00 amSEA - EYW
1 stop8h 43mAmerican Airlines
Wed 10/911:43 amEYW - SEA
1 stop10h 19mAmerican Airlines
Deal found 5/29$475
Sat 8/2411:58 pmSEA - EYW
1 stop9h 06mAmerican Airlines
Sat 8/314:05 pmEYW - SEA
1 stop8h 35mAmerican Airlines
Deal found 5/29$477
Tue 10/15:00 amSEA - EYW
1 stop8h 43mAmerican Airlines
Wed 10/911:36 amEYW - SEA
2 stops10h 26mAmerican Airlines
Deal found 5/29$480
Fri 8/2312:21 amSEA - EYW
2 stops11h 29mAmerican Airlines
Sat 8/313:02 pmEYW - SEA
1 stop10h 12mAmerican Airlines
Deal found 5/29$483
Mon 9/1610:10 pmSEA - EYW
2 stops12h 00mAmerican Airlines
Fri 9/201:46 pmEYW - SEA
2 stops10h 18mAmerican Airlines
Deal found 5/30$485
Sun 9/1511:59 pmSEA - EYW
2 stops11h 26mAmerican Airlines
Fri 9/201:46 pmEYW - SEA
2 stops12h 10mAmerican Airlines
Deal found 5/29$487
Thu 7/45:55 pmSEA - EYW
2 stops19h 15mMultiple Airlines
Thu 7/1110:06 amEYW - SEA
2 stops25h 06mMultiple Airlines
Deal found 5/29$497
Thu 7/45:55 pmSEA - EYW
2 stops19h 15mMultiple Airlines
Thu 7/1110:06 amEYW - SEA
3 stops37h 24mMultiple Airlines
Deal found 5/29$511
Tue 10/112:30 pmSEA - EYW
2 stops22h 55mUnited Airlines
Tue 10/811:30 amEYW - SEA
2 stops14h 17mUnited Airlines
Deal found 5/28$533

Seattle to Key West flights leaving soon

Find last-minute flight options from Seattle to Key West for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,765,679 searches. Data last updated May 30, 2024.
Check out these flights departing soon from Seattle to Key West. Users should be sure to double check the price, date, and time of their last-minute flight.
Thu 6/62:22 pmSEA - EYW
2 stops16h 33mUnited Airlines
Tue 6/119:00 amEYW - SEA
2 stops16h 50mUnited Airlines
Deal found 5/29$814
Thu 6/63:35 pmSEA - EYW
2 stops15h 20mUnited Airlines
Tue 6/113:20 pmEYW - SEA
1 stop10h 38mUnited Airlines
Deal found 5/29$852
Thu 6/611:59 pmSEA - EYW
1 stop9h 07mAmerican Airlines
Tue 6/1112:46 pmEYW - SEA
1 stop9h 51mAmerican Airlines
Deal found 5/29$905
Wed 6/51:14 amSEA - EYW
1 stop8h 47mAmerican Airlines
Tue 6/1112:46 pmEYW - SEA
1 stop10h 54mAmerican Airlines
Deal found 5/29$907
Wed 6/51:14 amSEA - EYW
1 stop8h 47mAmerican Airlines
Tue 6/112:40 pmEYW - SEA
2 stops13h 07mAmerican Airlines
Deal found 5/29$912
Wed 6/512:40 amSEA - EYW
2 stops13h 32mDelta
Tue 6/1112:39 pmEYW - SEA
2 stops11h 01mDelta
Deal found 5/29$1,460

One-way flights to Key West from Seattle

Search for one-way flight options from Seattle to Key West. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,765,679 searches. Data last updated May 30, 2024.
Users in need of a one-way flight from Seattle to Key West can choose from these deals. Users needing a return flight from Seattle to Key West should utilize the search form above.
Tue 10/2210:16 pmSEA - EYW
1 stop10h 19mJetBlue
Deal found 5/30$282
Sat 6/152:51 pmSEA - EYW
2 stops22h 23mMultiple Airlines
Deal found 5/29$313
Wed 10/2310:15 pmSEA - EYW
1 stop15h 12mAmerican Airlines
Deal found 5/30$318
Tue 10/2211:59 pmSEA - EYW
2 stops10h 06mAmerican Airlines
Deal found 5/30$338
Wed 6/125:05 amSEA - EYW
2 stops30h 30mUnited Airlines
Deal found 5/29$351
Wed 6/1211:29 pmSEA - EYW
2 stops29h 46mUnited Airlines
Deal found 5/30$408
Sat 6/159:15 pmSEA - EYW
1 stop8h 00mMultiple Airlines
Deal found 5/29$413
Tue 6/111:14 amSEA - EYW
1 stop8h 47mAmerican Airlines
Deal found 5/29$414
Fri 6/149:15 pmSEA - EYW
1 stop8h 00mMultiple Airlines
Deal found 5/29$427

Find flights from Seattle to Key West within your budget

Customize your flight search to find flights from Seattle to Key West that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,765,679 searches. Data last updated May 30, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$475 - $705

Route

Depart

Return

Price

Seattle/Tacoma IntlKey West

SEA - EYW

SEAEYW

Seattle/Tacoma Intl

Tue 10/1

1 stop8h 43m

Key West

Wed 10/9

1 stop10h 19m

$475

Seattle/Tacoma IntlKey West

SEA - EYW

SEAEYW

Seattle/Tacoma Intl

Sat 8/24

1 stop9h 06m

Key West

Sat 8/31

1 stop8h 35m

$477

Seattle/Tacoma IntlKey West

SEA - EYW

SEAEYW

Seattle/Tacoma Intl

Tue 10/1

1 stop8h 43m

Key West

Wed 10/9

2 stops10h 26m

$480

Seattle/Tacoma IntlKey West

SEA - EYW

SEAEYW

Seattle/Tacoma Intl

Fri 8/23

2 stops11h 29m

Key West

Sat 8/31

1 stop10h 12m

$483

Seattle/Tacoma IntlKey West

SEA - EYW

SEAEYW

Seattle/Tacoma Intl

Mon 9/16

2 stops12h 00m

Key West

Fri 9/20

2 stops10h 18m

$485

Seattle/Tacoma IntlKey West

SEA - EYW

SEAEYW

Seattle/Tacoma Intl

Thu 7/4

2 stops19h 15m

Key West

Thu 7/11

2 stops25h 06m

$497

Seattle/Tacoma IntlKey West

SEA - EYW

SEAEYW

Seattle/Tacoma Intl

Thu 7/4

2 stops19h 15m

Key West

Thu 7/11

3 stops37h 24m

$511

Seattle/Tacoma IntlKey West

SEA - EYW

SEAEYW

Seattle/Tacoma Intl

Tue 10/1

2 stops22h 55m

Key West

Tue 10/8

2 stops14h 17m

$533

Seattle/Tacoma IntlKey West

SEA - EYW

SEAEYW

Seattle/Tacoma Intl

Tue 10/1

2 stops15h 18m

Key West

Wed 10/9

2 stops15h 23m

$705

Flights are sorted by cheapest first

Deals found on 5/29

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Key West. Price data was last updated on May 24, 2024.
To ensure you get the cheapest price possible for a flight from Seattle to Key West, you should look to book at least 41 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Search Deals

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

Use this chart to determine the cheapest time to fly round-trip from Seattle to Key West. Price data was last updated on May 26, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Seattle to Key West flight should consider departing on Wednesday mornings when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Seattle to Key West

Have a flexible travel schedule? Discover the best time to fly to Key West from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in Key West by month

Plan your trip to Key West by taking into account the average temperature and rainfall totals by month.

EYW

Temperature

69.8 - 84.2 °F

Reviews of airlines servicing Key West

Get insights into the airlines that provide service to Key West. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Key West. Reviews last updated May 30, 2024.
Get a feel of what it's like to fly with American Airlines, United Airlines and Delta from Seattle to Key West by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,457 reviews
Check prices

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.4

Crew

8.6

Entertainment

8.0

Reviews

1 / 10

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.

Delta
8.0
Very good
10,457 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.4

Crew

8.6

Entertainment

8.0

Reviews

1 / 10

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.

JetBlue
7.6
Good
4,365 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.4

Crew

8.6

Entertainment

8.0

Reviews

1 / 10

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.

United Airlines
7.4
Good
10,777 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.4

Crew

8.6

Entertainment

8.0

Reviews

1 / 10

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.

American Airlines
7.3
Good
14,284 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.4

Crew

8.6

Entertainment

8.0

Reviews

1 / 10

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Key West. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Seattle to Key West for under $500 on Cheapflights?

    Yes, there are multiple flights from Seattle to Key West for under $500. The cheapest flight booked recently is on American Airlines for just $475, but on average you can expect to pay $585.

  • Are there last-minute flights available from Seattle to Key West for under $900?

    There are currently 6+ open flights from Seattle to Key West within the next 7 days for less than $900.

  • What are the cheapest airlines flying from Seattle to Key West round-trip?

    Our cheapest airline available from Seattle to Key West is American Airlines. Our recent data shows that you can find tickets from as low as $475 on this airline. Additional options worth looking into are United Airlines and Delta, starting at $533 and $705 round-trip. American Airlines is 28% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Seattle to Key West one-way?

    The cheapest airlines for a one-way flight from Seattle to Key West are JetBlue ($282), American Airlines ($318), and United Airlines ($351).

  • What does SEA to EYW mean?

    SEA and EYW are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. SEA to EYW refers to a flight route from Seattle/Tacoma Intl Airport to Key West Airport.

  • Can I find deals for flights from Seattle to Key West that include extra baggage allowance?

    The amount of baggage you can bring on your Seattle to Key West flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Seattle to Key West with specific airlines?

    Yes, Cheapflights allows you to browse and filter Seattle to Key West flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Seattle to Key West that include hotel bookings?

    Yes. In addition to deals on Seattle to Key West flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Key West?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Key West.

  • Can I find deals for business class flights from Seattle to Key West?

    Yes. Cheapflights offers flight deals from Seattle to Key West by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Seattle to Key West that allow pets onboard?

    Many airlines flying from Seattle to Key West offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Seattle to Key West?

    Yes, you can often find last-minute deals on Seattle to Key West flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Seattle to Key West flight deals updated?

    The Seattle to Key West flight deals you see on this page were last updated on 5/30.

  • What are the most popular airlines that fly from Seattle to Key West?

    American Airlines, Delta and United Airlines are the most popular airlines when flying from Seattle to Key West.

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

    Currently, January is the cheapest month in which you can book a flight from Seattle to Key West (average of $374). Flying from Seattle to Key West in March is currently the most expensive (average of $504). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Key West
See prices for flight routes from nearby airports that may be better suited for you.

Seattle to Orlando flights
Seattle to Miami flights
Seattle to Tampa flights
Seattle to Fort Lauderdale flights
Portland to Orlando flights
Portland to Miami flights
Seattle to Jacksonville flights
Seattle to Pensacola flights
Portland to Fort Lauderdale flights
Seattle to Valparaiso flights
Portland to Jacksonville flights
Portland to Tampa flights
Seattle to Sarasota flights
Seattle to Fort Myers flights
Seattle to West Palm Beach flights
Seattle to Panama City flights
Spokane to Orlando flights
Seattle to Tallahassee flights
Spokane to Miami flights
Seattle to Daytona Beach flights
Portland to Pensacola flights
Portland to Sarasota flights
Spokane to Tampa flights
Portland to Valparaiso flights
Spokane to Pensacola flights
Portland to Panama City flights
Portland to Fort Myers flights
Spokane to Jacksonville flights
Spokane to Fort Lauderdale flights
Pasco to Orlando flights
Seattle to Melbourne flights
Portland to West Palm Beach flights
Spokane to Tallahassee flights
Portland to Tallahassee flights
Pasco to Fort Myers flights
Portland to Key West flights
Portland to Gainesville flights
Spokane to Key West flights
Seattle to Gainesville flights
Portland to Daytona Beach flights
Pasco to Tampa flights
Spokane to Fort Myers flights
Spokane to Panama City flights
Pasco to Miami flights
Bellingham to Miami flights
Bellingham to Fort Lauderdale flights
Spokane to Sarasota flights
Portland to Melbourne flights
Spokane to Gainesville flights

Top 3 airlines flying from Seattle to Key West

Discover the top 3 airlines that operate flights from Seattle to Key West. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,765,679 searches. Data last updated May 30, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$446Average$818FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$468Average$657FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$469Average$603FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
New Jersey to Florida flights
Las Vegas to Los Angeles flights
Denver to Seattle flights
Los Angeles to El Salvador flights
Minneapolis to Orlando flights
Dallas to Orlando flights
New Orleans to Los Angeles flights
Los Angeles to Rome flights
Boston to Houston flights
Fresno to Los Angeles flights
Atlanta to Washington, D.C. flights
Seattle to Buenos Aires Ministro Pistarini Airport flights

Search flights from Seattle to Key West by cabin class

Find flights from Seattle to Key West, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Laayoune Hassan I
Flights to Virac
Flights to Figari-Sud Corse
Flights to Edremit/Korfez
Flights to Rhinelander Oneida County
Flights to Girona Costa Brava
Flights to Brainerd Crow Wing County
Flights to Parikia Paros
Flights to Cortez Montezuma County
Flights to Miyakojima Hirara
Flights to Zadar
Flights to Trapani Birgi
Flights to Provincetown
Flights to Oran Es Senia
Flights to Constanţa Mihail Kogalniceanu
Flights to Vava'u Lupepau'U
Flights to Urumqi
Flights to Hakodate
Flights to Naxos
Flights to Dalaman
Flights to Hyannis Barnstable
Flights to Devils Lake
Flights to Bastia Poretta
Flights to Karpathos

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Seattle to Key West?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Key West from Seattle today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Seattle to Key West?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Key West from Seattle.

Can Cheapflights find flights from Seattle to Key West with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Seattle to Key West, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Seattle to Key West become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Key West from Seattle today and book when prices fit your budget.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines