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Florida Keys

$49+ 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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — EYW
Jan 9 — Jan 161
Fri 1/9
Fri 1/16
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 December 10, 2025.

This Frontier deal was found by Cheapflights users on 12/7. 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.
Sun 12/1412:04 pmIAD - MIA
Nonstop2h 45mFrontier
Mon 12/1512:26 pmMIA - IAD
Nonstop2h 39mFrontier
Deal found 12/7$80
This Trip.com deal was found by Cheapflights users on 12/8. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/154:00 pmIAD - MIA
Nonstop2h 45mFrontier
Thu 12/185:30 amMIA - IAD
1 stop6h 08mFrontier
Deal found 12/8$87
This Kiwi.com deal was found by Cheapflights users on 12/8. 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.
Mon 12/154:00 pmIAD - MIA
Nonstop2h 45mMultiple Airlines
Tue 1/69:59 pmMIA - IAD
1 stop13h 29mMultiple Airlines
Deal found 12/8$91
This Kiwi.com deal was found by Cheapflights users on 12/8. 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.
Mon 12/154:00 pmIAD - MIA
Nonstop2h 45mMultiple Airlines
Mon 12/229:59 pmMIA - IAD
1 stop13h 39mMultiple Airlines
Deal found 12/8$94
This Frontier deal was found by Cheapflights users on 12/9. 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.
Sun 12/1412:04 pmIAD - MIA
Nonstop2h 45mFrontier
Sat 12/207:30 amMIA - IAD
Nonstop2h 39mFrontier
Deal found 12/9$105
This CheapOair deal was found by Cheapflights users on 12/8. 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.
Mon 12/84:00 pmIAD - MIA
Nonstop2h 45mFrontier
Mon 12/1512:26 pmMIA - IAD
Nonstop2h 39mFrontier
Deal found 12/8$112
This Kiwi.com deal was found by Cheapflights users on 12/7. 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.
Sun 12/1412:04 pmIAD - MIA
Nonstop2h 45mFrontier
Wed 12/175:58 pmMIA - IAD
1 stop24h 18mFrontier
Deal found 12/7$113
This United Airlines deal was found by Cheapflights users on 12/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/221:06 pmIAD - EYW
Nonstop3h 23mUnited Airlines
Sat 12/275:10 pmEYW - IAD
Nonstop2h 49mUnited Airlines
Deal found 12/8$279
This Kiwi.com deal was found by Cheapflights users on 12/9. 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.
Wed 12/242:35 pmIAD - EYW
1 stop5h 20mMultiple Airlines
Sun 12/2810:37 pmEYW - IAD
1 stop11h 11mMultiple Airlines
Deal found 12/9$285
This Kiwi.com deal was found by Cheapflights users on 12/9. 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.
Wed 12/242:35 pmIAD - EYW
1 stop5h 20mMultiple Airlines
Mon 12/291:10 pmEYW - IAD
1 stop7h 53mMultiple Airlines
Deal found 12/9$292
This Kiwi.com deal was found by Cheapflights users on 12/9. 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.
Thu 12/1812:50 pmIAD - EYW
2 stops20h 39mMultiple Airlines
Sun 12/219:59 amEYW - IAD
1 stop27h 43mMultiple Airlines
Deal found 12/9$293
This Delta deal was found by Cheapflights users on 12/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/314:17 pmIAD - EYW
1 stop4h 41mDelta
Wed 1/76:06 pmEYW - IAD
1 stop5h 31mDelta
Deal found 12/8$296

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 December 10, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$78
(Frontier)

One-way from

$49
(Frontier)

Popular in

December

Cheapest in

February

Average price

$296
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. 5% potential increase in price ($12 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 10, 2025.
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

Dulles Intl

Fly to

Florida Keys

Route

Depart

Return

Price

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Sun 1/4

10:10 pm-1:08 am

Nonstop2h 58m

Miami

Fri 1/9

6:25 pm-9:11 pm

Nonstop2h 46m

$181

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Tue 1/13

8:29 am-4:34 pm

1 stop8h 05m

Miami

Fri 1/16

4:54 pm-11:18 pm

1 stop6h 24m

$201

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Tue 1/20

6:00 am-2:38 pm

1 stop8h 38m

Miami

Wed 1/21

4:54 pm-11:18 pm

1 stop6h 24m

$201

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Wed 1/21

1:20 pm-4:22 pm

Nonstop3h 02m

Miami

Tue 1/27

6:25 pm-9:11 pm

Nonstop2h 46m

$207

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Wed 1/28

1:20 pm-4:22 pm

Nonstop3h 02m

Miami

Fri 1/30

6:25 pm-9:11 pm

Nonstop2h 46m

$207

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Sat 1/17

8:29 am-4:34 pm

1 stop8h 05m

Miami

Tue 1/20

6:25 pm-9:11 pm

Nonstop2h 46m

$213

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Sun 12/21

10:10 pm-1:08 am

Nonstop2h 58m

Miami

Fri 12/26

8:45 am-11:24 am

Nonstop2h 39m

$221

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Wed 1/14

8:29 am-4:34 pm

1 stop8h 05m

Miami

Tue 2/10

6:25 pm-9:11 pm

Nonstop2h 46m

$234

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Wed 1/14

1:20 pm-4:22 pm

Nonstop3h 02m

Miami

Sat 2/7

4:54 pm-11:13 pm

1 stop6h 19m

$234

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Wed 1/14

1:20 pm-4:22 pm

Nonstop3h 02m

Miami

Thu 1/22

5:40 pm-11:18 pm

1 stop5h 38m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 43 results
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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, 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 $429). 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 December 10, 2025.

It’s optimal to fly from Washington, D.C. Dulles Intl Airport to Florida Keys at noon. By choosing this option you can save up to 40% on the cost of your flight, compared to a flight in the evening.

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 December 10, 2025.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Florida Keys, such as Delta, United Airlines, and American Airlines. 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
8,009 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.1

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
8,009 reviews
Delta
7.9
Good
8,009 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.1

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
9,095 reviews
Delta
7.9
Good
8,009 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.1

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
7.2
Good
11,048 reviews
Delta
7.9
Good
8,009 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.1

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.
Spirit Airlines
6.3
Okay
8,175 reviews
Delta
7.9
Good
8,009 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.1

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
5.8
Fair
3,085 reviews
Delta
7.9
Good
8,009 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.1

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 $181, United Airlines can have you in Florida Keys from Washington, D.C. Dulles Intl Airport in 2h 58m. 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 $32 on Frontier. Other airlines that offer cheap prices include Spirit Airlines from $37 and JetBlue from $58 one-way.

  • 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 $299. While the most popular route (Washington, D.C. Dulles Intl - Miami) can be booked for $59 on average, our data indicates $327 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 $429). 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 December 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$179Average$492FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$250Average$491FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$354Average$477FlexibilityNo cancel feeOn-time71%

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