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$70+ 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 7/3. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — EYW
May 10 — May 171
Sat 5/10
Sat 5/17
1 adult, Economy
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Cheap 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 5, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$113
(Cheapflightsfares)

One-way from

$70
(CheapOair)

Popular in

December

Cheapest in

February

Average price

$220
Provider with most accurate pricing for Washington, D.C. (WAS)-Miami flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Miami flights.
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From Washington, D.C. Dulles Intl to Florida Keys
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One-way flight from Washington, D.C. Dulles Intl to Florida Keys
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Highest demand for flights based on searches. 8% potential increase in price ($22 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Find 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 5, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 5/4. 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.
Mon 6/23:45 pmIAD - MIA
Nonstop2h 40mFrontier
Fri 6/63:39 pmMIA - IAD
Nonstop2h 40mFrontier
Deal found 5/4$113
This United Airlines deal was found by Cheapflights users on 5/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/38:55 amIAD - MIA
Nonstop2h 49mUnited Airlines
Wed 6/41:21 pmMIA - IAD
Nonstop2h 40mUnited Airlines
Deal found 5/5$167
This American Airlines deal was found by Cheapflights users on 5/4. 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 6/141:08 pmIAD - MIA
1 stop7h 41mAmerican Airlines
Tue 6/171:30 pmMIA - IAD
1 stop6h 14mAmerican Airlines
Deal found 5/4$251
This Mytrip deal was found by Cheapflights users on 5/4. 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.
Sat 6/282:40 pmIAD - EYW
2 stops24h 47mAllegiant Air
Thu 7/34:20 pmEYW - IAD
1 stop17h 03mAllegiant Air
Deal found 5/4$293
This United Airlines deal was found by Cheapflights users on 5/4. 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.
Sun 6/15:55 pmIAD - EYW
1 stop14h 05mUnited Airlines
Sun 6/86:45 pmEYW - IAD
1 stop25h 59mUnited Airlines
Deal found 5/4$303
This Mytrip deal was found by Cheapflights users on 5/4. 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.
Sun 6/112:55 pmIAD - EYW
2 stops27h 46mMultiple Airlines
Sun 6/88:53 amEYW - IAD
2 stops29h 30mMultiple Airlines
Deal found 5/4$308
This Delta deal was found by Cheapflights users on 5/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3112:45 pmIAD - EYW
1 stop7h 04mDelta
Wed 8/67:00 amEYW - IAD
1 stop7h 35mDelta
Deal found 5/5$314
This American Airlines deal was found by Cheapflights users on 5/4. 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 5/315:02 amIAD - EYW
1 stop7h 08mAmerican Airlines
Tue 6/31:39 pmEYW - IAD
2 stops10h 23mAmerican Airlines
Deal found 5/4$339

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 5, 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

Mon 6/2

3:45 pm-6:25 pm

Nonstop2h 40m

Miami

Fri 6/6

3:39 pm-6:19 pm

Nonstop2h 40m

$113

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Tue 6/3

8:55 am-11:44 am

Nonstop2h 49m

Miami

Wed 6/4

1:21 pm-4:01 pm

Nonstop2h 40m

$167

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Sat 6/14

8:14 pm-12:29 am

1 stop4h 15m

Miami

Sat 6/21

6:18 am-12:38 pm

1 stop6h 20m

$251

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Sat 6/28

2:40 pm-3:27 pm

2 stops24h 47m

Key West

Thu 7/3

4:20 pm-9:23 am

1 stop17h 03m

$293

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Sun 6/1

5:55 pm-8:00 am

1 stop14h 05m

Key West

Sun 6/8

6:45 pm-8:44 pm

1 stop25h 59m

$303

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Sun 6/1

12:55 pm-4:41 pm

2 stops27h 46m

Key West

Sun 6/8

8:53 am-2:23 pm

2 stops29h 30m

$308

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Thu 7/31

12:45 pm-7:49 pm

1 stop7h 04m

Key West

Wed 8/6

7:00 am-2:35 pm

1 stop7h 35m

$314

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Sat 5/31

5:02 am-12:10 pm

1 stop7h 08m

Key West

Tue 6/3

1:39 pm-12:02 am

2 stops10h 23m

$339

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Thu 7/3

7:25 pm-10:05 pm

Nonstop2h 40m

$70

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Fri 6/13

8:50 am-12:19 am

1 stop15h 29m

$75

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/4

Showing 1-10 of 19 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, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Florida Keys (average of $328). Flying from Washington, D.C. Dulles Intl Airport to Florida Keys in March is currently the most expensive (average of $492). 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 May 5, 2025.

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.

Rainfall in Florida Keys by month

Plan your trip to Florida Keys by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Florida Keys ranges from 1.6 - 9.9 inches per month. September is typically the wettest month, when rainfall can reach 9.9 in. January is typically the driest time to visit Florida Keys when rainfall is around 1.6 in.

Temperature in Florida Keys by month

Plan your trip to Florida Keys by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Florida Keys, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 68.0 F).

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 5, 2025.
Peruse reviews from past customers who have flown with Delta, Avelo Airlines and United Airlines from Washington, D.C. to Florida Keys to help guide your decision. 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
7,939 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

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
8.0
Very good
7,939 reviews
Delta
8.0
Very good
7,939 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

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.
Avelo Airlines
7.5
Good
Delta
8.0
Very good
7,939 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

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
8,702 reviews
Delta
8.0
Very good
7,939 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

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.
Allegiant Air
7.3
Good
734 reviews
Delta
8.0
Very good
7,939 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

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
10,000 reviews
Delta
8.0
Very good
7,939 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

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.

  • 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 $70 on Frontier. Other airlines that offer cheap prices include Avelo Airlines from $75 and United Airlines from $84 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 $443. While the most popular route (Washington, D.C. Dulles Intl - Miami) can be booked for $97 on average our data indicates $962 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, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Florida Keys (average of $328). Flying from Washington, D.C. Dulles Intl Airport to Florida Keys in March is currently the most expensive (average of $492). 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.

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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 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$179Average$346FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$237Average$489FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$348Average$548FlexibilityNo cancel feeOn-time71%

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