HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Florida Keys

$65+ 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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — EYW
May 10 — May 171
Sun 5/10
Sun 5/17
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl to Florida Keys with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 April 10, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/6. 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 4/206:19 pm
IAD
-
MIA
1 stop6h 30m
Frontier
Tue 4/287:04 pm
MIA
-
IAD
1 stop5h 32m
Frontier
Deal found 4/6$159
This Frontier deal was found by Cheapflights users on 4/6. 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 4/257:05 am
IAD
-
MIA
1 stop7h 05m
Frontier
Wed 4/291:10 pm
MIA
-
IAD
1 stop11h 26m
Frontier
Deal found 4/6$160
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 4/218:20 am
IAD
-
MIA
1 stop16h 29m
Frontier
Sun 4/267:21 pm
MIA
-
IAD
1 stop29h 15m
Frontier
Deal found 4/6$161
This Kiwi.com deal was found by Cheapflights users on 4/9. 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.
Mon 4/276:19 pm
IAD
-
MIA
1 stop6h 30m
Frontier
Wed 4/291:10 pm
MIA
-
IAD
1 stop11h 26m
Frontier
Deal found 4/9$162
This Kiwi.com deal was found by Cheapflights users on 4/10. 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.
Sat 4/257:05 am
IAD
-
MIA
1 stop7h 05m
Frontier
Thu 4/3012:50 pm
MIA
-
IAD
1 stop11h 46m
Frontier
Deal found 4/10$163
This Frontier deal was found by Cheapflights users on 4/7. 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.
Tue 5/1911:07 am
IAD
-
MIA
1 stop5h 20m
Frontier
Tue 5/268:03 pm
MIA
-
IAD
1 stop12h 09m
Frontier
Deal found 4/7$165
This Kiwi.com deal was found by Cheapflights users on 4/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/177:40 am
IAD
-
MIA
1 stop8h 47m
Frontier
Tue 5/198:10 am
MIA
-
IAD
1 stop8h 11m
Frontier
Deal found 4/8$166
This Kiwi.com deal was found by Cheapflights users on 4/7. 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.
Sat 4/257:05 am
IAD
-
MIA
1 stop7h 05m
Multiple Airlines
Tue 4/283:54 pm
MIA
-
IAD
1 stop8h 42m
Multiple Airlines
Deal found 4/7$167
This Kiwi.com deal was found by Cheapflights users on 4/5. 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 4/276:19 pm
IAD
-
MIA
1 stop17h 44m
Multiple Airlines
Mon 5/411:24 am
MIA
-
IAD
2 stops28h 57m
Multiple Airlines
Deal found 4/5$168
This Kiwi.com deal was found by Cheapflights users on 4/10. 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.
Tue 5/55:26 pm
IAD
-
MIA
1 stop29h 21m
Multiple Airlines
Mon 5/1111:24 am
MIA
-
IAD
2 stops22h 48m
Multiple Airlines
Deal found 4/10$169
This Frontier deal was found by Cheapflights users on 4/7. 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.
Thu 4/910:13 pm
IAD
-
MIA
Nonstop3h 01m
Frontier
Wed 5/205:22 pm
MIA
-
IAD
1 stop5h 47m
Frontier
Deal found 4/7$170
This American Airlines deal was found by Cheapflights users on 4/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/66:25 am
IAD
-
EYW
1 stop4h 51m
American Airlines
Wed 5/132:01 pm
EYW
-
IAD
1 stop5h 24m
American Airlines
Deal found 4/8$309

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 April 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$159
(Kiwi.com)

One-way from

$65
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$292
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. 20% potential increase in price ($60 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 10, 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

Mon 4/20

8:35 am-11:31 am

Nonstop2h 56m

Miami

Sat 4/25

6:00 pm-8:49 pm

Nonstop2h 49m

$245

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Thu 8/20

5:30 pm-10:48 pm

1 stop5h 18m

Miami

Mon 8/24

7:30 pm-12:10 am

1 stop4h 40m

$265

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Thu 5/7

8:40 am-11:36 am

Nonstop2h 56m

Miami

Sat 5/9

6:10 pm-9:00 pm

Nonstop2h 50m

$297

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Tue 5/5

6:00 am-2:23 pm

1 stop8h 23m

Miami

Thu 5/7

6:10 pm-9:00 pm

Nonstop2h 50m

$307

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Thu 5/7

3:08 pm-7:49 pm

1 stop4h 41m

Key West

Tue 5/12

6:19 pm-12:51 am

1 stop6h 32m

$329

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Mon 4/27

8:35 am-11:31 am

Nonstop2h 56m

Miami

Thu 5/7

6:10 pm-9:00 pm

Nonstop2h 50m

$331

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Fri 6/19

3:02 pm-7:53 pm

1 stop4h 51m

Key West

Fri 6/26

2:24 pm-9:04 pm

1 stop6h 40m

$334

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Wed 4/29

6:00 am-1:14 pm

1 stop7h 14m

Miami

Fri 5/8

6:10 pm-9:00 pm

Nonstop2h 50m

$341
Quickest round-trip

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Fri 5/15

1:20 pm-4:16 pm

Nonstop2h 56m

Miami

Sat 5/23

1:10 pm-3:53 pm

Nonstop2h 43m

$354

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Sun 5/24

8:45 am-11:35 am

Nonstop2h 50m

Miami

Mon 6/1

5:22 pm-11:19 pm

1 stop5h 57m

$368

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/5

Showing 1-10 of 45 resultsSorted by cheapest first
1
2
3
...
5

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, July is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Florida Keys (average of $179). Flying from Washington, D.C. Dulles Intl Airport to Florida Keys in May is currently the most expensive (average of $369). 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 IAD to EOA?

Find hourly flight availability from Dulles Intl 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 April 10, 2026.

When flying from Washington, D.C. Dulles Intl Airport to Florida Keys, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Washington, D.C. Dulles Intl Airport to Florida Keys

Explore weekly flight availability from Dulles Intl to Florida Keys. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 10, 2026.

The most flights from IAD to zzEOA are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

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 April 10, 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
8,404 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Crew

8.5

Entertainment

7.8

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

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
7.9
Good
8,404 reviews
Delta
7.9
Good
8,404 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Crew

8.5

Entertainment

7.8

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

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
9,565 reviews
Delta
7.9
Good
8,404 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Crew

8.5

Entertainment

7.8

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

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
7.2
Good
2,928 reviews
Delta
7.9
Good
8,404 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Crew

8.5

Entertainment

7.8

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

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
7.1
Good
11,568 reviews
Delta
7.9
Good
8,404 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Crew

8.5

Entertainment

7.8

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

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.
Frontier
5.7
Fair
2,998 reviews
Delta
7.9
Good
8,404 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Crew

8.5

Entertainment

7.8

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

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 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 $245, United Airlines can have you in Florida Keys from Washington, D.C. Dulles Intl Airport in 2h 56m. 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 $89 one-way.

  • What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Florida Keys?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. Dulles Intl Airport to Florida Keys on time: Mesa Airlines (92%), United Airlines (68%), Republic Airways (56%).

  • What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Florida Keys?

    Looking at all options, your cheapest flight can be booked for $178. While the most popular route (Washington, D.C. Dulles Intl - Miami) can be booked for $130 on average, our data indicates $438 when flying from Washington, D.C. Dulles Intl Airport to Florida Keys.

  • 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, July is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Florida Keys (average of $179). Flying from Washington, D.C. Dulles Intl Airport to Florida Keys in May is currently the most expensive (average of $369). 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 Dulles Intl to Florida Keys

See prices for flight routes from nearby airports that may be better suited for you.
Reagan-National to Miami flights
Dulles Intl to Miami flights
Baltimore to Miami flights
Dulles Intl to Orlando flights
Baltimore to Fort Lauderdale flights
Reagan-National to Orlando flights
Dulles Intl to Fort Lauderdale flights
Dulles Intl to Tampa flights
Baltimore to Orlando flights
Baltimore to Tampa flights
Reagan-National to Fort Lauderdale flights
Reagan-National to Tampa flights
Reagan-National to West Palm Beach flights
Baltimore to West Palm Beach flights
Dulles Intl to West Palm Beach flights
Baltimore to Sarasota flights
Dulles Intl to Fort Myers flights
Baltimore to Jacksonville flights
Reagan-National to Fort Myers flights
Dulles Intl to Jacksonville flights
Reagan-National to Jacksonville flights
Reagan-National to Key West flights
Dulles Intl to Key West flights
Reagan-National to Sarasota flights
Reagan-National to Pensacola flights
Dulles Intl to Pensacola flights
Dulles Intl to Sarasota flights
Dulles Intl to Panama City flights
Baltimore to Key West flights
Baltimore to Fort Myers flights
Reagan-National to Panama City flights
Baltimore to Panama City flights
Baltimore to Pensacola flights
Dulles Intl to Valparaiso flights
Reagan-National to Valparaiso flights
Dulles Intl to Daytona Beach flights
Baltimore to Melbourne flights
Reagan-National to Melbourne flights
Dulles Intl to Melbourne flights
Reagan-National to Daytona Beach flights
Baltimore to Daytona Beach flights
Dulles Intl to Tallahassee flights
Baltimore to Gainesville flights
Dulles Intl to Orlando Sanford Intl flights
Reagan-National to Tallahassee flights
Baltimore to Tallahassee flights
Dulles Intl to Gainesville flights
Reagan-National to Gainesville flights
Reagan-National to Valdosta flights

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 April 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$179Average$472FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$279Average$475FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$358Average$515FlexibilityNo cancel feeOn-time71%

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.