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Florida Keys

$126+ Cheap flights from Seattle (SEA) to Florida Keys

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 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — EYW
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheap flight deals from Seattle to Florida Keys

Keep the following information in mind while searching for Seattle to Florida Keys flight deals. Data was last updated March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$225
(Mytrip)

One-way from

$126
(CheapOair)

Popular in

December

Cheapest in

January

Average price

$411
Provider with most accurate pricing for Seattle/Tacoma Intl-Miami flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Miami flights.
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From Seattle/Tacoma Intl to Florida Keys
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One-way flight from Seattle/Tacoma Intl to Florida Keys
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Highest demand for flights based on searches. 4% potential increase in price ($21 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Seattle to Florida Keys

Cheapest flights from Seattle to Florida Keys
Explore the most affordable flight options available from Seattle to Florida Keys. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This Mytrip deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2912:30 pmSEA - MIA
1 stop14h 47mSpirit Airlines
Fri 5/98:55 pmMIA - SEA
1 stop20h 30mSpirit Airlines
Deal found 3/27$225
This Booking.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2212:30 pmSEA - MIA
1 stop14h 47mMultiple Airlines
Sat 4/266:00 amMIA - SEA
1 stop21h 44mMultiple Airlines
Deal found 3/27$233
This Kiwi.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/288:01 amSEA - MIA
Nonstop6h 00mHawaiian Airlines
Tue 5/66:01 pmMIA - SEA
Nonstop6h 58mHawaiian Airlines
Deal found 3/27$235
This Delta deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/207:30 amSEA - MIA
Nonstop5h 52mDelta
Fri 4/255:55 pmMIA - SEA
Nonstop6h 49mDelta
Deal found 3/27$237
This CheapOair deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/246:00 amSEA - MIA
1 stop20h 21mFrontier
Thu 5/16:00 amMIA - SEA
1 stop21h 44mFrontier
Deal found 3/27$240
This Alaska Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/197:57 amSEA - MIA
1 stop8h 02mAlaska Airlines
Wed 4/236:01 pmMIA - SEA
Nonstop6h 58mAlaska Airlines
Deal found 3/27$247
This United Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/206:15 amSEA - MIA
2 stops11h 19mUnited Airlines
Thu 5/296:14 pmMIA - SEA
1 stop9h 45mUnited Airlines
Deal found 3/27$262
This Southwest deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/195:10 amSEA - MIA
2 stops9h 05mSouthwest
Wed 4/237:00 amMIA - SEA
1 stop12h 50mSouthwest
Deal found 3/27$313
This American Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2410:10 pmSEA - MIA
Nonstop5h 55mAmerican Airlines
Thu 5/16:17 pmMIA - SEA
1 stop9h 34mAmerican Airlines
Deal found 3/27$317
This American Airlines deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/227:20 amSEA - EYW
1 stop8h 35mAmerican Airlines
Tue 4/293:56 pmEYW - SEA
1 stop10h 43mAmerican Airlines
Deal found 3/26$427
This Mytrip deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/3012:30 pmSEA - EYW
2 stops25h 19mMultiple Airlines
Wed 5/74:23 pmEYW - SEA
3 stops34h 47mMultiple Airlines
Deal found 3/26$445
This United deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2211:45 pmSEA - EYW
2 stops15h 20mUnited Airlines
Tue 4/298:45 amEYW - SEA
2 stops17h 05mUnited Airlines
Deal found 3/26$482

Cheapflights Fare Finder

Customize your flight search to find flights from Seattle to Florida Keys 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 2,558,603 searches. Data last updated March 28, 2025.
Use the filters below to find and compare flights from Seattle to Florida Keys that are best for you.

Fly from

Seattle

Fly to

Florida Keys

Route

Depart

Return

Price

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

Tue 4/29

12:30 pm-6:17 am

1 stop14h 47m

Miami

Fri 5/9

8:55 pm-2:25 pm

1 stop20h 30m

$225

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

Tue 4/22

12:30 pm-6:17 am

1 stop14h 47m

Miami

Sat 4/26

6:00 am-12:44 am

1 stop21h 44m

$233

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

Mon 4/28

8:01 am-5:01 pm

Nonstop6h 00m

Miami

Tue 5/6

6:01 pm-9:59 pm

Nonstop6h 58m

$235

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

Sun 4/20

7:30 am-4:22 pm

Nonstop5h 52m

Miami

Fri 4/25

5:55 pm-9:44 pm

Nonstop6h 49m

$237

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

Thu 4/24

6:00 am-5:21 am

1 stop20h 21m

Miami

Thu 5/1

6:00 am-12:44 am

1 stop21h 44m

$240

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

Sat 4/19

7:57 am-6:59 pm

1 stop8h 02m

Miami

Wed 4/23

6:01 pm-9:59 pm

Nonstop6h 58m

$247

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

Tue 5/20

6:15 am-8:34 pm

2 stops11h 19m

Miami

Thu 5/29

6:14 pm-12:59 am

1 stop9h 45m

$262

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

Sat 4/19

5:10 am-5:15 pm

2 stops9h 05m

Miami

Wed 4/23

7:00 am-4:50 pm

1 stop12h 50m

$313

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

Thu 4/24

10:10 pm-7:05 am

Nonstop5h 55m

Miami

Thu 5/1

6:17 pm-12:51 am

1 stop9h 34m

$317

SeattleKey West

SEA - EYW

SEAEYW

Seattle/Tacoma Intl

Tue 4/22

7:20 am-6:55 pm

1 stop8h 35m

Key West

Tue 4/29

3:56 pm-11:39 pm

1 stop10h 43m

$427

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 26 results
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Best time to book a flight from Seattle to Florida Keys

Have a flexible travel schedule? Discover the best time to fly to Florida Keys 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.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Florida Keys

What is the cheapest month to book a flight from Seattle to Florida Keys?

Currently, August is the cheapest month in which you can book a flight from Seattle to Florida Keys (average of $328). Flying from Seattle to Florida Keys in March is currently the most expensive (average of $495). 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.

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

Find hourly flight availability from Seattle to Florida Keys. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 28, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Florida Keys as you normally would.

Rainfall in Florida Keys by month

Plan your trip to Florida Keys by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Florida Keys ranges from 1.6 - 9.9 inches per month. September is typically the wettest month, when rainfall can reach 9.9 in. January is typically the driest time to visit Florida Keys when rainfall is around 1.6 in.

Temperature in Florida Keys by month

Plan your trip to Florida Keys by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Florida Keys, use this chart to help with planning. For those seeking warmer temperatures, July 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 68.0 F).

Reviews of airlines servicing Florida Keys

Get insights into the airlines that provide service to Florida Keys. 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 Florida Keys. Reviews last updated March 28, 2025.
Peruse reviews from past customers who have flown with Southwest, Alaska Airlines and Delta from Seattle to Florida Keys to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,273 reviews

Boarding

8.2

Food

7.1

Crew

8.6

Entertainment

7.6

Comfort

8.1

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very good
4,273 reviews
Southwest
8.1
Very good
4,273 reviews

Boarding

8.2

Food

7.1

Crew

8.6

Entertainment

7.6

Comfort

8.1

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Alaska Airlines
8.0
Very good
9,798 reviews
Southwest
8.1
Very good
4,273 reviews

Boarding

8.2

Food

7.1

Crew

8.6

Entertainment

7.6

Comfort

8.1

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,896 reviews
Southwest
8.1
Very good
4,273 reviews

Boarding

8.2

Food

7.1

Crew

8.6

Entertainment

7.6

Comfort

8.1

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Hawaiian Airlines
7.9
Good
2,336 reviews
Southwest
8.1
Very good
4,273 reviews

Boarding

8.2

Food

7.1

Crew

8.6

Entertainment

7.6

Comfort

8.1

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,603 reviews
Southwest
8.1
Very good
4,273 reviews

Boarding

8.2

Food

7.1

Crew

8.6

Entertainment

7.6

Comfort

8.1

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

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

  • What airport do you fly from for flights from Seattle to Florida Keys?

    Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Florida Keys. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

  • What are the cheapest airlines to fly from Seattle to Florida Keys one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $126. However, be on the lookout for offers from Alaska Airlines and Spirit Airlines, as they are both options that can get you from Seattle to Florida Keys for a low price.

  • Can I find deals for flights from Seattle to Florida Keys that include hotel bookings?

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

  • How can I find direct flights from Seattle to Florida Keys?

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

  • Can I find deals for business class flights from Seattle to Florida Keys?

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

  • What is the cheapest month to book a flight from Seattle to Florida Keys?

    Currently, August is the cheapest month in which you can book a flight from Seattle to Florida Keys (average of $328). Flying from Seattle to Florida Keys in March is currently the most expensive (average of $495). 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

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Alternative routes for Seattle to Florida Keys

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Seattle to Florida Keys

Discover the top 3 airlines that operate flights from Seattle to Florida Keys. 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 2,558,603 searches. Data last updated March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$278Average$507FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$383Average$658FlexibilityNo cancel feeOn-time71%
DeltaCheapest$473Average$878FlexibilityNo cancel feeOn-timeN/A
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