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Florida Keys

$77+ Cheap flights from Dulles Intl (IAD) 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 7/29. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — EYW
Jun 24 — Jul 11
Wed 6/24
Wed 7/1
1 adult, Economy
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Cheap flight deals from Dulles Intl to Florida Keys

Cheapest flights from Dulles Intl to Florida Keys
Explore the most affordable flight options available from Dulles Intl to Florida Keys. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 25, 2026.

This Kiwi.com deal was found by Cheapflights users on 5/20. 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.
Tue 6/238:57 pm
IAD
-
MIA
1 stop19h 34m
Frontier
Wed 7/228:30 am
MIA
-
IAD
1 stop8h 44m
Frontier
Deal found 5/20$152
This Kiwi.com deal was found by Cheapflights users on 5/20. 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.
Wed 8/127:49 am
IAD
-
MIA
1 stop6h 04m
Frontier
Wed 8/198:10 am
MIA
-
IAD
1 stop9h 31m
Frontier
Deal found 5/20$178
This Kiwi.com deal was found by Cheapflights users on 5/20. 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 8/107:49 am
IAD
-
MIA
1 stop6h 04m
Frontier
Tue 8/188:10 am
MIA
-
IAD
1 stop8h 10m
Frontier
Deal found 5/20$185
This Kiwi.com deal was found by Cheapflights users on 5/20. 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 8/177:49 am
IAD
-
MIA
1 stop8h 44m
Frontier
Mon 8/245:26 pm
MIA
-
IAD
1 stop5h 51m
Frontier
Deal found 5/20$189
This deal was found by Cheapflights users on 5/24. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/167:30 am
IAD
-
MIA
1 stop6h 19m
Frontier
Tue 6/2311:19 am
MIA
-
IAD
1 stop5h 33m
Frontier
Deal found 5/24$190
This Kiwi.com deal was found by Cheapflights users on 5/20. 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.
Wed 8/127:49 am
IAD
-
MIA
1 stop6h 04m
Frontier
Thu 8/138:30 am
MIA
-
IAD
1 stop7h 41m
Frontier
Deal found 5/20$192
This Kiwi.com deal was found by Cheapflights users on 5/20. 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.
Tue 6/97:30 am
IAD
-
MIA
1 stop6h 19m
Frontier
Tue 6/95:26 pm
MIA
-
IAD
1 stop5h 51m
Frontier
Deal found 5/20$193
This United Airlines deal was found by Cheapflights users on 5/24. 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.
Wed 7/88:45 am
IAD
-
MIA
Nonstop2h 50m
United Airlines
Thu 7/161:10 pm
MIA
-
IAD
Nonstop2h 43m
United Airlines
Deal found 5/24$197
This Kiwi.com deal was found by Cheapflights users on 5/20. 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.
Tue 8/117:49 am
IAD
-
MIA
1 stop8h 44m
Frontier
Tue 8/185:26 pm
MIA
-
IAD
1 stop5h 51m
Frontier
Deal found 5/20$200
This Kiwi.com deal was found by Cheapflights users on 5/20. 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.
Wed 6/247:30 am
IAD
-
MIA
1 stop9h 01m
Frontier
Sat 6/278:40 am
MIA
-
IAD
1 stop7h 20m
Frontier
Deal found 5/20$203
This Kiwi.com deal was found by Cheapflights users on 5/20. 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.
Thu 8/2711:11 am
IAD
-
MIA
1 stop11h 52m
Frontier
Thu 9/35:26 pm
MIA
-
IAD
1 stop5h 51m
Frontier
Deal found 5/20$204
This American Airlines deal was found by Cheapflights users on 5/19. 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.
Sat 9/126:58 am
IAD
-
EYW
2 stops5h 59m
American Airlines
Wed 9/161:59 pm
EYW
-
IAD
2 stops9h 52m
American Airlines
Deal found 5/19$319

Find flight deals from Dulles Intl to Florida Keys

Keep the following information in mind while searching for Dulles Intl to Florida Keys flight deals. Data was last updated May 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$152
(Kiwi.com)

One-way from

$77
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$276
Provider with most accurate pricing for Washington, D.C. (WAS)-Miami flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Miami flights.
Search Deals
From Washington, D.C. Dulles Intl to Florida Keys
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Florida Keys
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($58 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl 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 May 25, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Florida Keys that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Wed 6/10

12:37 pm-6:09 pm

1 stop5h 32m

Miami

Wed 6/17

7:16 pm-12:44 am

1 stop5h 28m

$232

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Wed 7/8

12:37 pm-5:23 pm

1 stop4h 46m

Key West

Wed 8/12

6:15 pm-12:33 am

1 stop6h 18m

$334

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Wed 6/3

8:45 am-11:35 am

Nonstop2h 50m

Miami

Sat 6/6

5:20 pm-11:19 pm

1 stop5h 59m

$354

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Thu 7/9

6:33 am-2:38 pm

1 stop8h 05m

Miami

Tue 7/14

1:10 pm-3:53 pm

Nonstop2h 43m

$360

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Sat 7/18

8:45 am-11:35 am

Nonstop2h 50m

Miami

Thu 7/23

1:10 pm-3:53 pm

Nonstop2h 43m

$362

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Thu 6/18

8:45 am-11:35 am

Nonstop2h 50m

Miami

Tue 6/23

5:22 pm-11:19 pm

1 stop5h 57m

$372

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Mon 6/15

8:45 am-11:35 am

Nonstop2h 50m

Miami

Fri 6/19

1:10 pm-3:53 pm

Nonstop2h 43m

$437

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Fri 7/3

12:39 pm-7:53 pm

1 stop7h 14m

Key West

Tue 7/7

7:50 am-2:01 pm

1 stop6h 11m

$441

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Thu 5/28

8:45 am-11:35 am

Nonstop2h 50m

Miami

Sat 5/30

4:06 pm-12:59 am

1 stop8h 53m

$458

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Wed 7/1

8:15 am-3:00 pm

1 stop6h 45m

Miami

Wed 7/29

1:10 pm-3:53 pm

Nonstop2h 43m

$477

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/21

Showing 1-10 of 47 resultsSorted by cheapest first
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Best time to book a flight from Dulles Intl to Florida Keys

Have a flexible travel schedule? Discover the best time to fly to Florida Keys from Dulles Intl 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, D.C. Dulles Intl Airport to Florida Keys

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Florida Keys?

Currently, December is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Florida Keys (average of $27). Flying from Washington, D.C. Dulles Intl Airport to Florida Keys in February is currently the most expensive (average of $1,304). 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.

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Florida Keys?

Booking 17 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. Dulles Intl Airport to Florida Keys. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 May 25, 2026.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Florida Keys, such as Delta,United Airlines, andJetBlue. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,434 reviews

Boarding

8.1

Entertainment

7.8

Food

7.2

Overall

7.9

Crew

8.5

Comfort

7.8

Reviews

1 / 20
4.0
Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.
Delta
7.9
Good
8,434 reviews
Delta
7.9
Good
8,434 reviews

Boarding

8.1

Entertainment

7.8

Food

7.2

Overall

7.9

Crew

8.5

Comfort

7.8

Reviews

1 / 20
4.0
Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.
United Airlines
7.4
Good
9,747 reviews
Delta
7.9
Good
8,434 reviews

Boarding

8.1

Entertainment

7.8

Food

7.2

Overall

7.9

Crew

8.5

Comfort

7.8

Reviews

1 / 20
4.0
Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.
JetBlue
7.2
Good
2,979 reviews
Delta
7.9
Good
8,434 reviews

Boarding

8.1

Entertainment

7.8

Food

7.2

Overall

7.9

Crew

8.5

Comfort

7.8

Reviews

1 / 20
4.0
Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.
American Airlines
7.1
Good
11,630 reviews
Delta
7.9
Good
8,434 reviews

Boarding

8.1

Entertainment

7.8

Food

7.2

Overall

7.9

Crew

8.5

Comfort

7.8

Reviews

1 / 20
4.0
Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.
Frontier
5.7
Fair
2,937 reviews
Delta
7.9
Good
8,434 reviews

Boarding

8.1

Entertainment

7.8

Food

7.2

Overall

7.9

Crew

8.5

Comfort

7.8

Reviews

1 / 20
4.0
Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Florida Keys?

    For as low as $354, Delta can have you in Florida Keys from Washington, D.C. Dulles Intl Airport in 2h 50m. Airlines will cover a distance of 923 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Florida Keys one-way?

    One-way options have recently been found by users for as low as $29 on Frontier. Other airlines that offer cheap prices include JetBlue from $58 and United Airlines from $88 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Florida Keys?

    Currently, December is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Florida Keys (average of $27). Flying from Washington, D.C. Dulles Intl Airport to Florida Keys in February is currently the most expensive (average of $1,304). 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 Dulles Intl 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 Dulles Intl to Florida Keys

Discover the top 3 airlines that operate flights from Dulles Intl 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 May 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$248Average$503FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$279Average$468FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$358Average$512FlexibilityNo cancel feeOn-time71%

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