In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What are the most popular airlines that fly from Florida Keys to Washington, D.C. Dulles Intl Airport?

Consider Frontier, United Airlines or Delta when booking your flight. These represent the most popular airlines when flying from Florida Keys to Washington, D.C. Dulles Intl Airport.

What is the cheapest time of day to fly from EOA to IAD?

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

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.

$59+ Flights from Florida Keys to Washington, D.C. Dulles Intl Airport

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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 October 23, 2025.

Wed 11/52:21 pmMIA - IAD

1 stop5h 59mFrontier

Sun 11/94:00 pmIAD - MIA

Nonstop2h 43mFrontier

Deal found 10/21

$93

Sat 11/81:58 pmMIA - IAD

1 stop9h 57mFrontier

Mon 11/104:00 pmIAD - MIA

Nonstop2h 43mFrontier

Deal found 10/21

$94

Fri 12/55:30 amMIA - IAD

1 stop10h 54mFrontier

Sun 12/712:04 pmIAD - MIA

Nonstop2h 45mFrontier

Deal found 10/21

$99

Thu 11/612:28 pmMIA - IAD

Nonstop2h 47mFrontier

Tue 11/118:40 amIAD - MIA

1 stop10h 18mFrontier

Deal found 10/22

$100

Fri 11/711:53 amMIA - IAD

Nonstop2h 47mFrontier

Sun 11/94:00 pmIAD - MIA

Nonstop2h 43mFrontier

Deal found 10/21

$101

Thu 11/67:07 pmMIA - IAD

1 stop5h 04mFrontier

Sun 11/94:00 pmIAD - MIA

Nonstop2h 43mFrontier

Deal found 10/23

$102

Fri 11/711:53 amMIA - IAD

Nonstop2h 47mFrontier

Sat 11/155:58 amIAD - MIA

1 stop6h 50mFrontier

Deal found 10/21

$104

Fri 12/1212:26 pmMIA - IAD

Nonstop2h 39mMultiple Airlines

Sun 12/145:45 amIAD - MIA

1 stop5h 27mMultiple Airlines

Deal found 10/21

$106

Wed 11/269:05 amMIA - IAD

Nonstop2h 47mFrontier

Fri 12/54:00 pmIAD - MIA

Nonstop2h 45mFrontier

Deal found 10/21

$107

Sun 11/237:15 amMIA - IAD

Nonstop2h 47mFrontier

Mon 11/2412:47 pmIAD - MIA

Nonstop2h 43mFrontier

Deal found 10/21

$111

Fri 10/3112:20 pmMIA - IAD

Nonstop2h 34mFrontier

Tue 11/48:40 amIAD - MIA

1 stop27h 49mFrontier

Deal found 10/22

$112

Tue 12/166:10 pmEYW - IAD

1 stop6h 02mDelta

Wed 4/296:00 amIAD - EYW

1 stop4h 58mDelta

Deal found 10/21

$294

Best flights from Florida Keys to Dulles Intl
Discover carefully curated flight deals from Florida Keys to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 23, 2025.

Wed 12/1012:50 pmMIA - IAD

Nonstop2h 34mUnited Airlines

Mon 12/158:26 amIAD - MIA

Nonstop2h 48mUnited Airlines

Deal found 10/20

$161

Wed 3/42:35 pmEYW - IAD

1 stop6h 38mDelta

Sun 3/81:00 pmIAD - EYW

1 stop6h 44mDelta

Deal found 10/20

$264

Sat 12/208:45 amMIA - IAD

Nonstop2h 39mUnited Airlines

Sun 12/2810:10 pmIAD - MIA

Nonstop2h 58mUnited Airlines

Deal found 10/20

$181

Thu 10/3012:51 pmMIA - IAD

Nonstop2h 34mUnited Airlines

Tue 11/48:25 amIAD - MIA

Nonstop2h 49mUnited Airlines

Deal found 10/21

$187

Thu 11/612:51 pmMIA - IAD

Nonstop2h 34mUnited Airlines

Mon 11/108:25 amIAD - MIA

Nonstop2h 49mUnited Airlines

Deal found 10/22

$197

Tue 12/912:50 pmMIA - IAD

Nonstop2h 34mUnited Airlines

Tue 12/168:26 amIAD - MIA

Nonstop2h 48mUnited Airlines

Deal found 10/20

$198

Tue 12/166:10 pmEYW - IAD

1 stop6h 02mDelta

Wed 4/296:00 amIAD - EYW

1 stop4h 58mDelta

Deal found 10/23

$274

Wed 12/1012:50 pmMIA - IAD

Nonstop2h 34mUnited Airlines

Tue 12/168:26 amIAD - MIA

Nonstop2h 48mUnited Airlines

Deal found 10/20

$198

Tue 1/206:00 pmEYW - IAD

1 stop6h 07mDelta

Tue 1/276:00 amIAD - EYW

1 stop5h 03mDelta

Deal found 10/21

$294

Fri 12/125:56 pmMIA - IAD

1 stop5h 59mUnited Airlines

Tue 12/168:45 amIAD - MIA

1 stop7h 57mUnited Airlines

Deal found 10/20

$213

Tue 1/206:00 pmEYW - IAD

1 stop6h 07mDelta

Mon 1/267:00 amIAD - EYW

1 stop6h 12mDelta

Deal found 10/21

$294

Wed 11/1912:51 pmMIA - IAD

Nonstop2h 34mUnited Airlines

Wed 11/268:25 amIAD - MIA

Nonstop2h 49mUnited Airlines

Deal found 10/21

$218

Fri 12/1212:50 pmMIA - IAD

Nonstop2h 34mUnited Airlines

Thu 2/51:20 pmIAD - MIA

Nonstop3h 02mUnited Airlines

Deal found 10/22

$231

Tue 1/66:25 pmMIA - IAD

Nonstop2h 46mUnited Airlines

Mon 1/121:20 pmIAD - MIA

Nonstop3h 02mUnited Airlines

Deal found 10/21

$239

Last-minute flights from Florida Keys to Dulles Intl
Discover last-minute flight deals from Florida Keys to Dulles Intl. Data last updated October 23, 2025 and is based on user searches.

Fri 10/3112:20 pmMIA - IAD

Nonstop2h 34mFrontier

Tue 11/48:40 amIAD - MIA

1 stop27h 49mFrontier

Deal found 10/22

$112

Wed 11/52:21 pmMIA - IAD

1 stop5h 59mFrontier

Sun 11/94:00 pmIAD - MIA

Nonstop2h 43mFrontier

Deal found 10/21

$93

Thu 11/612:28 pmMIA - IAD

Nonstop2h 47mFrontier

Thu 11/134:00 pmIAD - MIA

Nonstop2h 43mFrontier

Deal found 10/23

$97

Thu 11/612:28 pmMIA - IAD

Nonstop2h 47mFrontier

Sat 11/155:58 amIAD - MIA

1 stop6h 50mFrontier

Deal found 10/23

$100

Thu 11/67:07 pmMIA - IAD

1 stop5h 04mFrontier

Sun 11/94:00 pmIAD - MIA

Nonstop2h 43mFrontier

Deal found 10/23

$103

Thu 11/63:00 pmEYW - IAD

1 stop5h 57mUnited Airlines

Mon 11/106:00 amIAD - EYW

1 stop8h 04mUnited Airlines

Deal found 10/22

$359

Fri 11/711:53 amMIA - IAD

Nonstop2h 47mFrontier

Sun 11/94:00 pmIAD - MIA

Nonstop2h 43mFrontier

Deal found 10/21

$101

Fri 11/711:53 amMIA - IAD

Nonstop2h 47mFrontier

Mon 11/104:00 pmIAD - MIA

Nonstop2h 43mFrontier

Deal found 10/23

$106

Sat 11/81:58 pmMIA - IAD

1 stop9h 57mFrontier

Mon 11/104:00 pmIAD - MIA

Nonstop2h 43mFrontier

Deal found 10/21

$94

Sun 11/98:55 amEYW - IAD

1 stop10h 56mMultiple Airlines

Wed 11/128:40 amIAD - EYW

2 stops26h 40mMultiple Airlines

Deal found 10/20

$361

Sun 11/237:15 amMIA - IAD

Nonstop2h 47mFrontier

Mon 11/2412:47 pmIAD - MIA

Nonstop2h 43mFrontier

Deal found 10/21

$111

Wed 11/269:05 amMIA - IAD

Nonstop2h 47mFrontier

Fri 12/54:00 pmIAD - MIA

Nonstop2h 45mFrontier

Deal found 10/21

$107

One-way flights from Florida Keys to Dulles Intl
Search for one-way flight options from Florida Keys to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated October 23, 2025.

Mon 11/312:22 pmMIA - IAD

Nonstop2h 47mFrontier

Deal found 10/23

$59

Fri 1/161:45 pmMIA - IAD

Nonstop2h 40mUnited Airlines

Deal found 10/22

$61

Tue 11/118:08 pmMIA - IAD

1 stop24h 12mFrontier

Deal found 10/21

$62

Mon 12/225:30 amMIA - IAD

1 stop6h 08mFrontier

Deal found 10/22

$63

Wed 11/1212:51 pmMIA - IAD

Nonstop2h 34mUnited Airlines

Deal found 10/21

$64

Sun 1/1110:27 amMIA - IAD

Nonstop2h 39mFrontier

Deal found 10/21

$66

Thu 1/86:25 pmMIA - IAD

Nonstop2h 46mUnited Airlines

Deal found 10/22

$67

Wed 11/122:21 pmMIA - IAD

1 stop5h 59mFrontier

Deal found 10/22

$68

Mon 11/246:21 pmMIA - IAD

1 stop5h 38mFrontier

Deal found 10/23

$69

Thu 1/810:27 amMIA - IAD

Nonstop2h 39mFrontier

Deal found 10/23

$71

Sun 12/218:55 amEYW - IAD

1 stop12h 08mMultiple Airlines

Deal found 10/22

$91

Sat 12/203:36 pmEYW - IAD

1 stop24h 17mMultiple Airlines

Deal found 10/22

$102

Cheap flight deals from Florida Keys to Dulles Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$93 (Kiwi.com)
One-way from	$59 (CheapOair)
Popular in	March
Cheapest in	September
Average price	$339

Provider with most accurate pricing for Key West-Washington, D.C. (WAS) flight deals.

Search Deals

Provider most trusted by Cheapflights users for Key West-Washington, D.C. (WAS) flights.

Search Deals

From Florida Keys to Washington, D.C. Dulles Intl

Search Deals

One-way flight from Florida Keys to Washington, D.C. Dulles Intl

Search Deals

Highest demand for flights based on searches. 26% potential increase in price ($155 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease ($28 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2025

Search Deals

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Wed 12/10

12:50 pm-3:24 pm

Nonstop2h 34m

Washington, D.C. Dulles Intl

Mon 12/15

8:26 am-11:14 am

Nonstop2h 48m

$161

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Sat 12/20

8:45 am-11:24 am

Nonstop2h 39m

Washington, D.C. Dulles Intl

Sun 12/28

10:10 pm-1:08 am

Nonstop2h 58m

$181

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Thu 10/30

12:51 pm-3:25 pm

Nonstop2h 34m

Washington, D.C. Dulles Intl

Tue 11/4

8:25 am-11:14 am

Nonstop2h 49m

$187

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Thu 11/6

12:51 pm-3:25 pm

Nonstop2h 34m

Washington, D.C. Dulles Intl

Mon 11/10

8:25 am-11:14 am

Nonstop2h 49m

$197

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Tue 12/9

12:50 pm-3:24 pm

Nonstop2h 34m

Washington, D.C. Dulles Intl

Tue 12/16

8:26 am-11:14 am

Nonstop2h 48m

$198

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Wed 12/10

12:50 pm-3:24 pm

Nonstop2h 34m

Washington, D.C. Dulles Intl

Tue 12/16

8:26 am-11:14 am

Nonstop2h 48m

$198

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Fri 12/12

5:56 pm-11:55 pm

1 stop5h 59m

Washington, D.C. Dulles Intl

Tue 12/16

8:45 am-4:42 pm

1 stop7h 57m

$213

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Wed 11/19

12:51 pm-3:25 pm

Nonstop2h 34m

Washington, D.C. Dulles Intl

Wed 11/26

8:25 am-11:14 am

Nonstop2h 49m

$218

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Fri 12/12

12:50 pm-3:24 pm

Nonstop2h 34m

Washington, D.C. Dulles Intl

Thu 2/5

1:20 pm-4:22 pm

Nonstop3h 02m

$231

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Tue 1/6

6:25 pm-9:11 pm

Nonstop2h 46m

Washington, D.C. Dulles Intl

Mon 1/12

1:20 pm-4:22 pm

Nonstop3h 02m

$239

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/22

Showing 1-10 of 33 results

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

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

7.9

Good

7,982 reviews

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

7.9

Good

7,982 reviews

Delta

7.9

Good

7,982 reviews

Reviews

1 / 20

6.0

Good

pilar,May 2025

RSW - ATL

United Airlines

7.4

Good

8,995 reviews

Delta

7.9

Good

7,982 reviews

Reviews

1 / 20

6.0

Good

pilar,May 2025

RSW - ATL

American Airlines

7.2

Good

11,033 reviews

Delta

7.9

Good

7,982 reviews

Reviews

1 / 20

6.0

Good

pilar,May 2025

RSW - ATL

Spirit Airlines

6.3

Okay

8,103 reviews

Delta

7.9

Good

7,982 reviews

Reviews

1 / 20

6.0

Good

pilar,May 2025

RSW - ATL

Frontier

5.8

Fair

3,128 reviews

Delta

7.9

Good

7,982 reviews

Reviews

1 / 20

6.0

Good

pilar,May 2025

RSW - ATL

Related info for your journey

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 34m. Fly via United Airlines 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.

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Tysons

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Springfield

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Oxon Hill

Laurel

Towson

National Harbor

Waldorf

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Florida Keys to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$223	Average$268	FlexibilityNo cancel fee	On-timeN/A

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$59+ 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 11/3. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Florida Keys to Dulles Intl with Cheapflights

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3. Compare prices and book

Find flight deals from Florida Keys to Dulles Intl

Cheapest flights from Florida Keys to Dulles IntlExplore 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 October 23, 2025.

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 October 23, 2025.

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 October 23, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Florida Keys to Washington, D.C. Dulles Intl Airport that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from Florida Keys to Washington, D.C. Dulles Intl Airport

Reviews of airlines servicing Dulles Intl

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.

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?

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

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

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

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

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 Florida Keys to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Florida Keys to Dulles Intl

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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 October 23, 2025.