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Florida Keys

$103+ Cheap flights from Washington 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 3/15. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — EYW
Feb 10 — Feb 171
Tue 2/10
Tue 2/17
1 adult, Economy
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Cheap flight deals from Washington to Florida Keys

Keep the following information in mind while searching for Washington to Florida Keys flight deals. Data was last updated January 11, 2026.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$188
(Kiwi.com)

One-way from

$103
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$347
Provider with most accurate pricing for Seattle/Tacoma Intl-Miami flight deals.
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From Washington to Florida Keys
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One-way flight from Washington to Florida Keys
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Highest demand for flights based on searches. 10% potential increase in price ($42 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Washington to Florida Keys

Cheapest flights from Washington to Florida Keys
Explore the most affordable flight options available from Washington to Florida Keys. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 11, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/10. 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 2/98:44 amSEA - MIA
Nonstop5h 50mHawaiian Airlines
Wed 2/185:59 pmMIA - SEA
Nonstop7h 05mHawaiian Airlines
Deal found 1/10$188
This Gotogate deal was found by Cheapflights users on 1/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/2512:34 pmSEA - MIA
1 stop8h 25mFrontier
Thu 1/295:47 pmMIA - SEA
1 stop20h 32mFrontier
Deal found 1/10$190
This CheapOair deal was found by Cheapflights users on 1/8. 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.
Sun 1/2512:34 pmSEA - MIA
1 stop8h 25mFrontier
Wed 1/286:18 pmMIA - SEA
1 stop20h 01mFrontier
Deal found 1/8$191
This Trip.com deal was found by Cheapflights users on 1/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/2512:34 pmSEA - MIA
1 stop8h 25mMultiple Airlines
Wed 1/285:54 amMIA - SEA
1 stop18h 02mMultiple Airlines
Deal found 1/9$194
This Frontier deal was found by Cheapflights users on 1/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/281:16 pmSEA - MIA
1 stop12h 58mFrontier
Mon 3/95:50 amMIA - SEA
1 stop8h 29mFrontier
Deal found 1/9$195
This Super.com deal was found by Cheapflights users on 1/9. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/2512:34 pmSEA - MIA
1 stop8h 25mFrontier
Sat 1/316:18 pmMIA - SEA
1 stop20h 01mFrontier
Deal found 1/9$196
This Delta deal was found by Cheapflights users on 1/9. 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.
Mon 2/27:35 amSEA - MIA
Nonstop5h 52mDelta
Wed 2/115:02 pmMIA - SEA
Nonstop6h 58mDelta
Deal found 1/9$199
This Delta deal was found by Cheapflights users on 1/11. 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.
Mon 2/97:35 amSEA - MIA
Nonstop5h 52mDelta
Wed 2/186:29 pmMIA - SEA
Nonstop6h 46mDelta
Deal found 1/11$200
This Kiwi.com deal was found by Cheapflights users on 1/9. 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.
Fri 2/2012:00 pmSEA - MIA
1 stop14h 14mFrontier
Mon 2/235:05 amMIA - SEA
2 stops32h 49mFrontier
Deal found 1/9$204
This Kiwi.com deal was found by Cheapflights users on 1/10. 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 1/2612:34 pmSEA - MIA
2 stops44h 22mMultiple Airlines
Wed 2/411:33 amMIA - SEA
1 stop26h 46mMultiple Airlines
Deal found 1/10$207
This Trip.com deal was found by Cheapflights users on 1/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/212:34 pmSEA - MIA
1 stop25h 18mMultiple Airlines
Wed 2/116:34 pmMIA - SEA
Nonstop6h 55mMultiple Airlines
Deal found 1/9$208
This American Airlines deal was found by Cheapflights users on 1/10. 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.
Mon 5/411:40 pmPDX - MIA
1 stop9h 55mAmerican Airlines
Wed 5/68:22 pmMIA - PDX
Nonstop6h 30mAmerican Airlines
Deal found 1/10$212

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington 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 January 11, 2026.
Use the filters below to find and compare flights from Washington to Florida Keys that are best for you.

Fly from

Washington

Fly to

Florida Keys

Route

Depart

Return

Price

PortlandMiami

PDX - MIA

PDXMIA

Portland

Mon 3/2

5:30 am-5:14 pm

1 stop8h 44m

Miami

Thu 3/19

5:56 pm-11:59 pm

1 stop9h 03m

$215

PortlandMiami

PDX - MIA

PDXMIA

Portland

Tue 2/24

12:09 pm-12:53 am

1 stop9h 44m

Miami

Wed 3/4

6:43 am-12:25 pm

1 stop8h 42m

$215

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

Fri 2/6

5:40 pm-6:37 am

1 stop9h 57m

Miami

Fri 2/13

6:34 pm-10:30 pm

Nonstop6h 56m

$218

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

Mon 2/23

8:30 am-5:14 pm

Nonstop5h 44m

Miami

Sat 2/28

7:50 am-2:44 pm

1 stop9h 54m

$219

PortlandMiami

PDX - MIA

PDXMIA

Portland

Wed 3/4

5:05 am-6:35 pm

2 stops10h 30m

Miami

Tue 3/10

6:30 am-12:50 pm

1 stop9h 20m

$220

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

Mon 2/9

5:40 pm-6:35 am

1 stop9h 55m

Miami

Wed 2/18

8:05 am-2:20 pm

1 stop9h 15m

$239

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

Sun 2/22

8:30 am-5:14 pm

Nonstop5h 44m

Miami

Wed 2/25

6:29 pm-10:15 pm

Nonstop6h 46m

$239

SeattleMiami

SEA - MIA

SEAMIA

Seattle/Tacoma Intl

Wed 3/11

5:55 pm-6:49 am

1 stop9h 54m

Miami

Tue 3/17

6:49 am-2:54 pm

1 stop11h 05m

$239

PortlandMiami

PDX - MIA

PDXMIA

Portland

Wed 2/4

5:15 pm-5:28 am

2 stops9h 13m

Miami

Wed 2/18

6:29 pm-12:15 am

1 stop8h 46m

$251

SpokaneMiami

GEG - MIA

GEGMIA

Spokane

Thu 2/19

5:00 am-5:19 pm

1 stop9h 19m

Miami

Wed 2/25

12:03 pm-11:54 pm

2 stops14h 51m

$253

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/11

Showing 1-10 of 60 results
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Best time to book a flight from Washington to Florida Keys

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

What is the cheapest month to book a flight from State of Washington to Florida Keys?

Currently, March is the cheapest month in which you can book a flight from State of Washington to Florida Keys (average of $308). Flying from State of Washington to Florida Keys in June is currently the most expensive (average of $555). 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.

Related info for your journey

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

  • How long is the flight from State of Washington to Florida Keys?

    For as low as $215, Delta can have you in Florida Keys from State of Washington in 8h 44m. The distance from State of Washington to Florida Keys is about 2695 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from State of Washington to Florida Keys one-way?

    One-way options have recently been found by users for as low as $96 on Frontier. Other airlines that offer cheap prices include Spirit Airlines from $99 and Alaska Airlines from $118 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington 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 State of Washington to Florida Keys?

    Currently, March is the cheapest month in which you can book a flight from State of Washington to Florida Keys (average of $308). Flying from State of Washington to Florida Keys in June is currently the most expensive (average of $555). 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 Washington 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 Washington to Florida Keys

Discover the top 3 airlines that operate flights from Washington 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 January 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$278Average$493FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$328Average$593FlexibilityNo cancel feeOn-time71%
DeltaCheapest$338Average$638FlexibilityNo cancel feeOn-timeN/A

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