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Cheap flights from Seattle to Key West (SEA - EYW) from $239

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 7/14. 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 12 — Jun 191
From?
To?
Wed 6/12
Wed 6/19
1 adult, Economy
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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 Tuesday 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 June 7, 2024.

Popular in

May

Cheapest in

August

Round-trip from

$373

One-way from

$279
High demand for flights, 11% potential price rise
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Best time to find cheap flights, 15% potential price drop
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From Seattle/Tacoma Intl to Key West
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One-way flight from Seattle/Tacoma Intl to Key West
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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 59% 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 May. Opting for a August flight can save you 12% on your journey compared to booking in May

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.

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 3,048,502 searches. Data last updated June 7, 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 8/139:46 pmSEA - EYW
1 stop11h 18mAmerican Airlines
Wed 10/22:34 pmEYW - SEA
1 stop10h 19mAmerican Airlines
Deal found 6/5$503
Mon 8/1212:21 amSEA - EYW
2 stops11h 29mAmerican Airlines
Wed 10/212:53 pmEYW - SEA
1 stop11h 11mAmerican Airlines
Deal found 6/5$508
Mon 8/121:14 amSEA - EYW
2 stops10h 36mAmerican Airlines
Wed 10/211:59 amEYW - SEA
2 stops10h 31mAmerican Airlines
Deal found 6/5$513
Tue 10/15:00 amSEA - EYW
1 stop8h 43mAmerican Airlines
Thu 10/102:01 pmEYW - SEA
1 stop12h 19mAmerican Airlines
Deal found 6/6$572
Tue 10/15:00 amSEA - EYW
2 stops10h 59mAmerican Airlines
Thu 10/1011:36 amEYW - SEA
1 stop14h 44mAmerican Airlines
Deal found 6/6$577
Tue 10/111:59 pmSEA - EYW
2 stops14h 06mUnited Airlines
Thu 10/104:25 pmEYW - SEA
2 stops28h 26mUnited Airlines
Deal found 6/6$587
Thu 10/317:46 amSEA - EYW
1 stop9h 22mAmerican Airlines
Sat 11/91:59 pmEYW - SEA
1 stop12h 16mAmerican Airlines
Deal found 6/6$597
Thu 10/315:45 amSEA - EYW
1 stop7h 24mAmerican Airlines
Sat 11/912:09 pmEYW - SEA
2 stops11h 41mAmerican Airlines
Deal found 6/6$603
Thu 10/311:59 pmSEA - EYW
2 stops11h 26mAmerican Airlines
Sun 10/67:31 pmEYW - SEA
1 stop8h 00mAmerican Airlines
Deal found 6/6$638

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 3,048,502 searches. Data last updated June 7, 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.
Sun 7/1411:29 amSEA - EYW
3 stops25h 41mMultiple Airlines
Deal found 6/5$239
Sun 7/1411:29 amSEA - EYW
2 stops25h 41mMultiple Airlines
Deal found 6/5$279
Fri 7/266:35 pmSEA - EYW
2 stops34h 40mUnited Airlines
Deal found 6/5$324
Wed 7/246:00 amSEA - EYW
1 stop8h 08mDelta
Deal found 6/5$349
Sat 7/1312:13 amSEA - EYW
1 stop9h 51mAmerican Airlines
Deal found 6/5$364
Thu 7/2511:59 pmSEA - EYW
2 stops10h 50mAmerican Airlines
Deal found 6/5$369
Sun 7/288:00 pmSEA - EYW
2 stops12h 47mDelta
Deal found 6/5$378
Sat 7/1312:13 amSEA - EYW
2 stops10h 36mAmerican Airlines
Deal found 6/5$419
Fri 7/266:35 pmSEA - EYW
3 stops40h 34mUnited Airlines
Deal found 6/5$443

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 3,048,502 searches. Data last updated June 7, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$503 - $1,152

Route

Depart

Return

Price

Seattle/Tacoma IntlKey West

SEA - EYW

SEAEYW

Seattle/Tacoma Intl

Tue 8/13

1 stop11h 18m

Key West

Wed 10/2

1 stop10h 19m

$503

Seattle/Tacoma IntlKey West

SEA - EYW

SEAEYW

Seattle/Tacoma Intl

Mon 8/12

2 stops11h 29m

Key West

Wed 10/2

1 stop11h 11m

$508

Seattle/Tacoma IntlKey West

SEA - EYW

SEAEYW

Seattle/Tacoma Intl

Mon 8/12

2 stops10h 36m

Key West

Wed 10/2

2 stops10h 31m

$513

Seattle/Tacoma IntlKey West

SEA - EYW

SEAEYW

Seattle/Tacoma Intl

Tue 10/1

1 stop8h 43m

Key West

Thu 10/10

1 stop12h 19m

$572

Seattle/Tacoma IntlKey West

SEA - EYW

SEAEYW

Seattle/Tacoma Intl

Tue 10/1

2 stops10h 59m

Key West

Thu 10/10

1 stop14h 44m

$577

Seattle/Tacoma IntlKey West

SEA - EYW

SEAEYW

Seattle/Tacoma Intl

Tue 10/1

2 stops14h 06m

Key West

Thu 10/10

2 stops28h 26m

$587

Seattle/Tacoma IntlKey West

SEA - EYW

SEAEYW

Seattle/Tacoma Intl

Tue 8/13

3 stops17h 00m

Key West

Wed 10/2

2 stops14h 27m

$641

Seattle/Tacoma IntlKey West

SEA - EYW

SEAEYW

Seattle/Tacoma Intl

Thu 10/31

2 stops24h 23m

Key West

Sat 11/9

2 stops16h 05m

$653

Seattle/Tacoma IntlKey West

SEA - EYW

SEAEYW

Seattle/Tacoma Intl

Mon 9/30

2 stops13h 51m

Key West

Thu 10/10

1 stop10h 43m

$1,152

Flights are sorted by cheapest first

Deals found on 6/5

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 31, 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.
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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 June 2, 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.
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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

If weather is an important factor for your trip to Key West, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 69.8 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 June 7, 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
10,363 reviews

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

8.0

Overall

8.0

Food

7.4

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
10,363 reviews
Delta
8.0
Very good
10,363 reviews

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

8.0

Overall

8.0

Food

7.4

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
10,696 reviews
Delta
8.0
Very good
10,363 reviews

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

8.0

Overall

8.0

Food

7.4

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
14,226 reviews
Delta
8.0
Very good
10,363 reviews

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

8.0

Overall

8.0

Food

7.4

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 $600 on Cheapflights?

    Yes, there are multiple flights from Seattle to Key West for under $600. The cheapest flight booked recently is on American Airlines for just $503, but on average you can expect to pay $644.

  • 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 $503 on this airline. Additional options worth looking into are United Airlines and Delta, starting at $587 and $1,152 round-trip. American Airlines is 23% 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 United Airlines ($324), Delta ($349), and American Airlines ($364).

  • 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 6/6.

  • 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, August is the cheapest month in which you can book a flight from Seattle to Key West (average of $373). Flying from Seattle to Key West in March is currently the most expensive (average of $503). 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.

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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 3,048,502 searches. Data last updated June 7, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$446Average$813FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$469Average$603FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$476Average$659FlexibilityNo cancel feeOn-time71%
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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.
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