What are the cheapest airlines to fly from Florida Keys to Washington, D.C. Dulles Intl Airport one-way?

$65 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on United Airlines and Delta, with prices starting from $74 and $495, respectively.

What is the cheapest month to book a flight from Florida Keys to Washington, D.C. Dulles Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Florida Keys to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Florida Keys to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $345). 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.

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 cheapest flights from Florida Keys to Washington, D.C. Dulles Intl Airport?

Looking for the cheapest flight from Florida Keys to Washington, D.C. Dulles Intl Airport? While on average our users pay $588, our data indicates the cheapest price to be $588. The most popular route (Miami - Washington, D.C. Dulles Intl), is priced around $80.

How far in advance should I book a flight from Florida Keys to Washington, D.C. Dulles Intl Airport?

Travelers have found it’s best to book a flight 27 days in advance to save up to 88% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 27 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Florida Keys to Washington, D.C. Dulles Intl Airport 1-2 weeks in advance for as low as $136, or $308 for flights within the next 24 hours.

What is the cheapest month to fly from Florida Keys to Washington, D.C. Dulles Intl Airport?

Our data shows that February tends to be the cheapest month to fly to Washington, D.C. Dulles Intl Airport from Florida Keys. Users have commonly found prices around $176 for the month, but tickets can be as low as $49. Due to multiple factors, prepare for potentially higher prices in December.

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.

$65+ Flights from Florida Keys to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from Florida Keys to Dulles Intl

Round-trip from	$104 (Priceline)
One-way from	$65 (Priceline)
Popular in	March
Cheapest in	September
Average price	$363

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 ($143 potential increase over avg. RT price).

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Cheapest flight prices on average. 7% potential price decrease ($30 potential savings vs. average RT price).

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Average for round-trip flights in June 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 June 30, 2025.

Thu 7/103:50 pmMIA - IAD

Nonstop2h 38mFrontier

Mon 7/149:58 pmIAD - MIA

Nonstop2h 47mFrontier

Deal found 6/27

$104

Fri 9/126:10 pmEYW - IAD

1 stop6h 03mDelta

Tue 9/1610:07 amIAD - EYW

1 stop7h 08mDelta

Deal found 6/30

$269

Thu 7/241:25 pmEYW - IAD

2 stops10h 33mAmerican Airlines

Wed 7/306:35 amIAD - EYW

1 stop5h 25mAmerican Airlines

Deal found 6/28

$353

Tue 7/222:12 pmEYW - IAD

1 stop7h 08mUnited Airlines

Thu 7/246:15 amIAD - EYW

1 stop6h 57mUnited Airlines

Deal found 6/29

$509

Thu 7/311:47 pmEYW - IAD

3 stops21h 33mMultiple Airlines

Tue 8/55:40 pmIAD - EYW

3 stops21h 30mMultiple Airlines

Deal found 6/30

$529

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 June 30, 2025.

Thu 7/103:50 pmMIA - IAD

Nonstop2h 38mFrontier

Sat 7/127:25 pmIAD - MIA

Nonstop2h 47mFrontier

Deal found 6/28

$104

Fri 9/126:10 pmEYW - IAD

1 stop6h 03mDelta

Tue 9/1610:07 amIAD - EYW

1 stop7h 08mDelta

Deal found 6/30

$269

Thu 7/241:25 pmEYW - IAD

2 stops10h 33mAmerican Airlines

Wed 7/306:35 amIAD - EYW

1 stop5h 25mAmerican Airlines

Deal found 6/28

$353

Tue 7/222:12 pmEYW - IAD

1 stop7h 08mUnited Airlines

Thu 7/246:15 amIAD - EYW

1 stop6h 57mUnited Airlines

Deal found 6/29

$509

Thu 7/311:47 pmEYW - IAD

3 stops21h 33mMultiple Airlines

Tue 8/55:40 pmIAD - EYW

3 stops21h 30mMultiple Airlines

Deal found 6/30

$529

Last-minute flights from Florida Keys to Dulles Intl
Discover last-minute flight deals from Florida Keys to Dulles Intl. Data last updated June 30, 2025 and is based on user searches.

Thu 7/103:50 pmMIA - IAD

Nonstop2h 38mFrontier

Sat 7/127:25 pmIAD - MIA

Nonstop2h 47mFrontier

Deal found 6/28

$104

Tue 7/222:12 pmEYW - IAD

1 stop7h 08mUnited Airlines

Thu 7/246:15 amIAD - EYW

1 stop6h 57mUnited Airlines

Deal found 6/29

$509

Thu 7/241:25 pmEYW - IAD

2 stops10h 33mAmerican Airlines

Wed 7/306:35 amIAD - EYW

1 stop5h 25mAmerican Airlines

Deal found 6/28

$353

Thu 7/317:00 amEYW - IAD

1 stop7h 42mDelta

Tue 8/512:45 pmIAD - EYW

1 stop7h 04mDelta

Deal found 6/30

$269

Thu 7/311:47 pmEYW - IAD

3 stops21h 33mMultiple Airlines

Tue 8/55:40 pmIAD - EYW

3 stops21h 30mMultiple Airlines

Deal found 6/30

$529

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 June 30, 2025.

Wed 8/203:58 pmMIA - IAD

1 stop5h 41mFrontier

Deal found 6/30

$65

Wed 9/312:50 pmMIA - IAD

Nonstop2h 35mUnited Airlines

Deal found 6/30

$74

Mon 7/142:12 pmEYW - IAD

1 stop8h 15mUnited Airlines

Deal found 6/30

$329

Mon 7/1410:02 amEYW - IAD

2 stops26h 29mMultiple Airlines

Deal found 6/30

$352

Thu 9/252:00 pmEYW - IAD

1 stop4h 24mDelta

Deal found 6/28

$495

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

Thu 7/10

3:50 pm-6:28 pm

Nonstop2h 38m

Washington, D.C. Dulles Intl

Sat 7/12

7:25 pm-10:12 pm

Nonstop2h 47m

$104

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Fri 9/12

6:10 pm-12:13 am

1 stop6h 03m

Washington, D.C. Dulles Intl

Tue 9/16

10:07 am-5:15 pm

1 stop7h 08m

$269

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 7/24

1:25 pm-11:58 pm

2 stops10h 33m

Washington, D.C. Dulles Intl

Wed 7/30

6:35 am-12:00 pm

1 stop5h 25m

$353

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Tue 7/22

2:12 pm-9:20 pm

1 stop7h 08m

Washington, D.C. Dulles Intl

Thu 7/24

6:15 am-1:12 pm

1 stop6h 57m

$509

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 7/31

1:47 pm-11:20 am

3 stops21h 33m

Washington, D.C. Dulles Intl

Tue 8/5

5:40 pm-3:10 pm

3 stops21h 30m

$529

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Wed 8/20

3:58 pm-9:39 pm

1 stop5h 41m

$65

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Wed 9/3

12:50 pm-3:25 pm

Nonstop2h 35m

$74

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Mon 7/14

2:12 pm-10:27 pm

1 stop8h 15m

$329

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Mon 7/14

10:02 am-12:31 pm

2 stops26h 29m

$352

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 9/25

2:00 pm-6:24 pm

1 stop4h 24m

$495

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 11 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

8.0

Very good

7,973 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

8.0

Very good

7,973 reviews

Delta

8.0

Very good

7,973 reviews

Reviews

1 / 20

6.0

Good

pilar,May 2025

RSW - ATL

United Airlines

7.4

Good

8,852 reviews

Delta

8.0

Very good

7,973 reviews

Reviews

1 / 20

6.0

Good

pilar,May 2025

RSW - ATL

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,973 reviews

Reviews

1 / 20

6.0

Good

pilar,May 2025

RSW - ATL

Frontier

5.9

Fair

3,290 reviews

Delta

8.0

Very good

7,973 reviews

Reviews

1 / 20

6.0

Good

pilar,May 2025

RSW - ATL

Related info for your journey

What are the cheapest airlines to fly from Florida Keys to Washington, D.C. Dulles Intl Airport one-way?
$65 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on United Airlines and Delta, with prices starting from $74 and $495, respectively.
What are the cheapest flights from Florida Keys to Washington, D.C. Dulles Intl Airport?
Looking for the cheapest flight from Florida Keys to Washington, D.C. Dulles Intl Airport? While on average our users pay $588, our data indicates the cheapest price to be $588. The most popular route (Miami - Washington, D.C. Dulles Intl), is priced around $80.
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, August is the cheapest month in which you can book a flight from Florida Keys to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Florida Keys to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $345). 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

Arlington

Woodbridge

Alexandria

Tysons

Silver Spring

Linthicum Heights

Fredericksburg

Gaithersburg

Fairfax

Easton

Towson

Falls Church

Rockville

Springfield

National Harbor

Manassas

Dundalk

Waldorf

Bowie

Hanover

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$293	FlexibilityNo cancel fee	On-timeN/A

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$65+ 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 8/20. 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

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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 June 30, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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 June 30, 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 June 30, 2025.

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.

What are the cheapest airlines to fly from Florida Keys to Washington, D.C. Dulles Intl Airport one-way?

What are the cheapest flights 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?

What is the cheapest month to book a flight from Florida Keys to Washington, D.C. Dulles Intl Airport?

Traveling to a place near Florida Keys?

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

100% Free

Book with Flexibility

Travel Smart

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 June 30, 2025.