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Dulles Intl

$66+ Cheap flights from Florida Keys to Dulles Intl (IAD)

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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — IAD
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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Cheap flight deals from Florida Keys to Dulles Intl

Keep the following information in mind while searching for Florida Keys to Dulles Intl flight deals. Data was last updated August 18, 2025.

Round-trip from

$91
(CheapOair)

One-way from

$66
(Cheapflightsfares)

Popular in

March

Cheapest in

September

Average price

$416
From Florida Keys to Washington, D.C. Dulles Intl
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One-way flight from Florida Keys to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 24% potential increase in price ($135 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Florida Keys to Dulles Intl

Cheapest flights from Florida Keys to Dulles Intl
Explore the most affordable flight options available from Florida Keys to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 8/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/211:35 amMIA - IAD
Nonstop2h 50mFrontier
Sun 10/53:15 pmIAD - MIA
Nonstop2h 49mFrontier
Deal found 8/17$96
This Cheapflightsfares deal was found by Cheapflights users on 8/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1811:35 amMIA - IAD
Nonstop2h 50mFrontier
Sun 9/213:15 pmIAD - MIA
Nonstop2h 49mFrontier
Deal found 8/17$97
This Frontier deal was found by Cheapflights users on 8/17. 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 10/3012:32 pmMIA - IAD
Nonstop2h 34mFrontier
Sun 11/23:51 pmIAD - MIA
Nonstop2h 47mFrontier
Deal found 8/17$98
This Mytrip deal was found by Cheapflights users on 8/17. 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.
Thu 9/1811:35 amMIA - IAD
Nonstop2h 50mFrontier
Fri 9/193:15 pmIAD - MIA
Nonstop2h 49mFrontier
Deal found 8/17$99
This FlightHub deal was found by Cheapflights users on 8/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/411:35 amMIA - IAD
Nonstop2h 50mFrontier
Thu 9/113:15 pmIAD - MIA
Nonstop2h 49mFrontier
Deal found 8/18$100
This FlightHub deal was found by Cheapflights users on 8/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2611:35 amMIA - IAD
Nonstop2h 50mFrontier
Sun 9/283:15 pmIAD - MIA
Nonstop2h 49mFrontier
Deal found 8/16$105
This FlightHub deal was found by Cheapflights users on 8/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1211:35 amMIA - IAD
Nonstop2h 50mFrontier
Mon 9/153:15 pmIAD - MIA
Nonstop2h 49mFrontier
Deal found 8/18$108
This Mytrip deal was found by Cheapflights users on 8/17. 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.
Fri 9/125:30 amMIA - IAD
1 stop7h 25mFrontier
Sun 9/143:15 pmIAD - MIA
Nonstop2h 49mFrontier
Deal found 8/17$110
This CheapOair deal was found by Cheapflights users on 8/17. 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 8/284:34 pmMIA - IAD
Nonstop2h 50mFrontier
Thu 9/43:15 pmIAD - MIA
Nonstop2h 49mFrontier
Deal found 8/17$112
This Gotogate deal was found by Cheapflights users on 8/16. 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.
Thu 9/411:35 amMIA - IAD
Nonstop2h 50mFrontier
Sun 9/71:55 pmIAD - MIA
1 stop10h 17mFrontier
Deal found 8/16$113
This CheapOair deal was found by Cheapflights users on 8/17. 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.
Fri 9/511:35 amMIA - IAD
Nonstop2h 50mFrontier
Sat 9/67:00 amIAD - MIA
1 stop9h 30mFrontier
Deal found 8/17$114
This Cheapflightsfares deal was found by Cheapflights users on 8/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/284:34 pmMIA - IAD
Nonstop2h 50mFrontier
Mon 9/18:19 pmIAD - MIA
Nonstop2h 47mFrontier
Deal found 8/16$115

Cheapflights Fare Finder

 
Customize your flight search to find flights from Florida Keys to Dulles Intl 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 August 18, 2025.
Use the filters below to find and compare flights from Florida Keys to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Florida Keys

Fly to

Dulles Intl

Route

Depart

Return

Price

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Thu 10/2

11:35 am-2:25 pm

Nonstop2h 50m

Washington, D.C. Dulles Intl

Sun 10/5

3:15 pm-6:04 pm

Nonstop2h 49m

$96

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Thu 11/6

12:32 pm-3:06 pm

Nonstop2h 34m

Washington, D.C. Dulles Intl

Mon 11/10

3:51 pm-6:38 pm

Nonstop2h 47m

$96

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Thu 9/25

11:35 am-2:25 pm

Nonstop2h 50m

Washington, D.C. Dulles Intl

Sun 9/28

3:15 pm-6:04 pm

Nonstop2h 49m

$96

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Fri 9/19

11:35 am-2:25 pm

Nonstop2h 50m

Washington, D.C. Dulles Intl

Mon 9/22

3:15 pm-6:04 pm

Nonstop2h 49m

$96

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Thu 9/18

11:35 am-2:25 pm

Nonstop2h 50m

Washington, D.C. Dulles Intl

Sun 9/21

3:15 pm-6:04 pm

Nonstop2h 49m

$97

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Thu 9/11

11:35 am-2:25 pm

Nonstop2h 50m

Washington, D.C. Dulles Intl

Thu 9/25

3:15 pm-6:04 pm

Nonstop2h 49m

$97

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Thu 10/9

11:34 am-2:25 pm

Nonstop2h 51m

Washington, D.C. Dulles Intl

Sun 10/12

3:10 pm-5:57 pm

Nonstop2h 47m

$97

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Fri 9/19

11:35 am-2:25 pm

Nonstop2h 50m

Washington, D.C. Dulles Intl

Sun 9/21

3:15 pm-6:04 pm

Nonstop2h 49m

$97

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Fri 10/24

11:34 am-2:25 pm

Nonstop2h 51m

Washington, D.C. Dulles Intl

Mon 10/27

3:10 pm-5:57 pm

Nonstop2h 47m

$97

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 9/18

7:00 am-11:40 am

1 stop4h 40m

Washington, D.C. Dulles Intl

Mon 9/22

6:00 am-1:02 pm

1 stop7h 02m

$249

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Showing 1-10 of 35 results
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Best time to book a flight from Florida Keys to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Florida Keys 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 Florida Keys to Washington, D.C. Dulles Intl Airport
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated August 18, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Florida Keys to Washington, D.C. Dulles Intl Airport have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
United Airlines
7.4
Good
8,925 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Spirit Airlines
6.3
Okay
8,038 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Frontier
5.8
Fair
3,212 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.

Related info for your journey

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

    There are many flights that can get you from Florida Keys to Washington, D.C. Dulles Intl Airport in 2h 50m. Fly via Frontier or Delta to get the fastest option. Florida Keys and Washington, D.C. Dulles Intl Airport are separated by a distance of 923 mi. This flight may include one or multiple stops.

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

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

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

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

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

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

    Currently, July is the cheapest month in which you can book a flight from Florida Keys to Washington, D.C. Dulles Intl Airport (average of $302). Flying from Florida Keys to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Springfield
Fredericksburg
Gaithersburg
Towson
Linthicum Heights
Fairfax
Manassas
Falls Church
Laurel
Rockville
Oxon Hill
National Harbor
Dundalk
Waldorf
Bowie

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Florida Keys to Dulles Intl

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

Top airline flying from Florida Keys to Dulles Intl

Discover the top airline that operate flights from Florida Keys to Dulles Intl. 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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$223Average$268FlexibilityNo cancel feeOn-timeN/A

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