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

One-way options have recently been found by users for as low as $198 on United Airlines. Other airlines that offer cheap prices include American Airlines from $259 and Delta from $329 one-way.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Key West?

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Key West flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Key West?

The cheapest flight price from Washington, D.C. Dulles Intl Airport to Key West is $379. On average you can expect to pay $542. The most popular route, (Washington, D.C. Dulles Intl - Key West), can usually be booked for $269.

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

American Airlines, Delta and United Airlines are the most popular airlines when flying from Washington, D.C. Dulles Intl Airport to Key West.

What is the cheapest day to fly round-trip from Washington, D.C. Dulles Intl Airport to Key West?

Flying to your destination on a Saturday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Key West. Check prices with Cheapflights to find a great deal for your trip.

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

January is one of the best times of the year to fly to Key West from Washington, D.C. Dulles Intl Airport. Prices for January average $457 per person but you can even find prices for as low as $179. The most expensive prices can be found in the month of April. Opting for a January flight can save you 12% on your journey compared to booking in April

Most accurate provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-Key West flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Key West flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Key West flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-Key West flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Key West flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly into for flights to Key West from Washington, D.C. Dulles Intl?

Key West (EYW) is the airport you will fly into if you book a flight from Washington, D.C. Dulles Intl to Key West. You should not have trouble finding flights to Key West from Washington, D.C. Dulles Intl; the airport handles an average of 0 inbound flights from Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 3 airlines have flights to the Key West airport from Washington, D.C. Dulles Intl. It is only a 2.6 mi journey from Key West (EYW) to Key West’s city center.

Can I find deals for flights from Dulles Intl to Key West that include hotel bookings?

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

How can I find direct flights from Dulles Intl to Key West?

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

Can I find deals for business class flights from Dulles Intl to Key West?

Yes. Cheapflights offers flight deals from Dulles Intl to Key West by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$140+ Flights from Washington, D.C. Dulles Intl Airport to Key West

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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Key West are usually found in September or January, booked 51 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from Dulles Intl to Key West

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$269 (Delta)
One-way from	$140 (Mytrip)
Popular in	December
Cheapest in	September
Average price	$443
Good round-trip deal	$494 or less

Provider with most accurate pricing for Washington, D.C. Dulles Intl-Key West flight deals.

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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Key West flights.

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From Washington, D.C. Dulles Intl to Key West

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One-way flight from Washington, D.C. Dulles Intl to Key West

Search Deals

Highest demand for flights based on searches. 4% potential increase in price ($25 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).

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Average for round-trip flights in April 2025

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Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Key West.

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Find flight deals from Dulles Intl to Key West

Cheapest flights from Dulles Intl to Key West
Explore the most affordable flight options available from Dulles Intl to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 11, 2025.

Sat 5/103:33 pmIAD - EYW

1 stop4h 34mDelta

Tue 5/136:25 pmEYW - IAD

1 stop5h 10mDelta

Deal found 4/10

$269

Fri 6/273:13 pmIAD - EYW

2 stops23h 55mMultiple Airlines

Mon 6/3010:23 amEYW - IAD

2 stops25h 03mMultiple Airlines

Deal found 4/10

$304

Wed 7/168:40 amIAD - EYW

1 stop23h 20mUnited Airlines

Mon 7/216:45 pmEYW - IAD

1 stop25h 54mUnited Airlines

Deal found 4/10

$343

Wed 6/256:55 amIAD - EYW

1 stop5h 11mAmerican Airlines

Wed 7/24:45 pmEYW - IAD

1 stop7h 14mAmerican Airlines

Deal found 4/11

$349

Best flights from Dulles Intl to Key West
Discover carefully curated flight deals from Dulles Intl to Key West that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 11, 2025.

Sat 5/103:33 pmIAD - EYW

1 stop4h 34mDelta

Tue 5/136:25 pmEYW - IAD

1 stop5h 10mDelta

Deal found 4/10

$269

Fri 6/273:13 pmIAD - EYW

2 stops23h 55mMultiple Airlines

Mon 6/3010:23 amEYW - IAD

2 stops25h 03mMultiple Airlines

Deal found 4/10

$304

Wed 6/259:10 amIAD - EYW

1 stop7h 01mAmerican Airlines

Wed 7/24:45 pmEYW - IAD

1 stop7h 14mAmerican Airlines

Deal found 4/10

$349

Thu 4/248:50 amIAD - EYW

1 stop9h 15mUnited Airlines

Fri 6/202:45 pmEYW - IAD

1 stop23h 35mUnited Airlines

Deal found 4/10

$367

Last-minute flights from Dulles Intl to Key West
Discover last-minute flight deals from Dulles Intl to Key West. Data last updated April 11, 2025 and is based on user searches.

Wed 4/1612:29 pmIAD - EYW

1 stop4h 48mDelta

Wed 4/236:13 pmEYW - IAD

1 stop6h 12mDelta

Deal found 4/9

$344

Thu 4/179:10 amIAD - EYW

2 stops9h 35mAmerican Airlines

Sun 4/205:20 pmEYW - IAD

1 stop6h 36mAmerican Airlines

Deal found 4/11

$853

Fri 4/188:30 amIAD - EYW

2 stops29h 44mMultiple Airlines

Sun 4/209:03 amEYW - IAD

2 stops27h 47mMultiple Airlines

Deal found 4/9

$485

Mon 4/218:50 amIAD - EYW

1 stop9h 15mUnited Airlines

Wed 4/238:45 amEYW - IAD

1 stop26h 42mUnited Airlines

Deal found 4/10

$437

Thu 4/248:50 amIAD - EYW

1 stop9h 15mUnited Airlines

Fri 6/202:45 pmEYW - IAD

1 stop23h 35mUnited Airlines

Deal found 4/10

$367

Sun 4/2712:55 pmIAD - EYW

2 stops27h 21mMultiple Airlines

Thu 5/18:53 amEYW - IAD

3 stops31h 22mMultiple Airlines

Deal found 4/10

$316

Sat 5/39:10 amIAD - EYW

2 stops9h 36mAmerican Airlines

Wed 5/75:24 pmEYW - IAD

1 stop6h 38mAmerican Airlines

Deal found 4/11

$354

Sat 5/103:33 pmIAD - EYW

1 stop4h 34mDelta

Tue 5/136:25 pmEYW - IAD

1 stop5h 10mDelta

Deal found 4/10

$269

One-way flights from Dulles Intl to Key West
Search for one-way flight options from Dulles Intl to Key West. Find affordable one-way fares based on user searches. Data last updated April 11, 2025.

Thu 4/245:40 pmIAD - EYW

2 stops22h 36mMultiple Airlines

Deal found 4/10

$140

Sat 5/108:50 amIAD - EYW

1 stop9h 15mUnited Airlines

Deal found 4/10

$198

Sat 5/105:02 amIAD - EYW

2 stops7h 58mAmerican Airlines

Deal found 4/10

$259

Thu 4/241:56 pmIAD - EYW

1 stop6h 34mDelta

Deal found 4/10

$329

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Sat 5/10

3:33 pm-8:07 pm

1 stop4h 34m

Key West

Tue 5/13

6:25 pm-11:35 pm

1 stop5h 10m

$269

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Fri 6/27

3:13 pm-3:08 pm

2 stops23h 55m

Key West

Mon 6/30

10:23 am-11:26 am

2 stops25h 03m

$304

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Wed 7/16

8:40 am-8:00 am

1 stop23h 20m

Key West

Mon 7/21

6:45 pm-8:39 pm

1 stop25h 54m

$343

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Wed 6/25

6:55 am-12:06 pm

1 stop5h 11m

Key West

Wed 7/2

4:45 pm-11:59 pm

1 stop7h 14m

$349

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Thu 4/24

5:40 pm-4:16 pm

2 stops22h 36m

$140

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Sun 7/27

8:40 am-8:00 am

1 stop23h 20m

$193

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Wed 5/21

5:02 am-12:10 pm

1 stop7h 08m

$254

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Thu 4/24

1:56 pm-8:30 pm

1 stop6h 34m

$329

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/10

Compare providers for flights from Dulles Intl to Key West

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Key West in April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Key West flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Key West flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Key West flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Key West flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Key West flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Dulles Intl to Key West

Have a flexible travel schedule? Discover the best time to fly to Key West 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 Key West

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Key West?

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Key West may vary depending on when you book. For the best chance of a lower fare, look to book 50 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Key West (average of $328). Flying from Washington, D.C. Dulles Intl Airport to Key West in March is currently the most expensive (average of $493). 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 EYW?

It’s optimal to fly from Washington, D.C. Dulles Intl Airport to Key West in the afternoon. By choosing this option you can save up to 8% on the cost of your flight, compared to a flight in the morning.

Rainfall in Key West by month

In terms of precipitation, rainfall in Key West ranges from 1.5 - 6.7 inches per month. September is typically the wettest month, when rainfall can reach 6.7 in. February is typically the driest time to visit Key West when rainfall is around 1.5 in.

Temperature in Key West by month

If weather is an important factor for your trip to Key West, use this chart to help with planning. For those seeking warmer temperatures, June 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 69.8 F).

Reviews of airlines servicing Key West

To help decide which airline to fly from Washington, D.C. to Key West, see what other customers have to say about Delta, United Airlines and American Airlines. 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

7,911 reviews

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

7,911 reviews

Delta

8.0

Very good

7,911 reviews

Reviews

1 / 20

2.0

Mediocre

Joseph,Aug 2023

MSP - MCO

United Airlines

7.4

Good

8,636 reviews

Delta

8.0

Very good

7,911 reviews

Reviews

1 / 20

2.0

Mediocre

Joseph,Aug 2023

MSP - MCO

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,911 reviews

Reviews

1 / 20

2.0

Mediocre

Joseph,Aug 2023

MSP - MCO

Related info for your journey

What airport do you fly into for flights to Key West from Washington, D.C. Dulles Intl?
Key West (EYW) is the airport you will fly into if you book a flight from Washington, D.C. Dulles Intl to Key West. You should not have trouble finding flights to Key West from Washington, D.C. Dulles Intl; the airport handles an average of 0 inbound flights from Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 3 airlines have flights to the Key West airport from Washington, D.C. Dulles Intl. It is only a 2.6 mi journey from Key West (EYW) to Key West’s city center.
What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Key West round-trip?
According to our current data, Delta ($269), American Airlines ($349), and United Airlines ($367) offers the cheapest pricing from Washington, D.C. Dulles Intl Airport to Key West. Delta is 44% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Key West one-way?
One-way options have recently been found by users for as low as $198 on United Airlines. Other airlines that offer cheap prices include American Airlines from $259 and Delta from $329 one-way.
What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Key West?
The cheapest flight price from Washington, D.C. Dulles Intl Airport to Key West is $379. On average you can expect to pay $542. The most popular route, (Washington, D.C. Dulles Intl - Key West), can usually be booked for $269.
Can I find deals for flights from Dulles Intl to Key West that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Key West flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Key West?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Key West.
Can I find deals for business class flights from Dulles Intl to Key West?
Yes. Cheapflights offers flight deals from Dulles Intl to Key West 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 Key West?
Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Key West (average of $328). Flying from Washington, D.C. Dulles Intl Airport to Key West in March is currently the most expensive (average of $493). 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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Other flights to Key West

Top 3 airlines flying from Dulles Intl to Key West

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$238	Average$367	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$239	Average$486	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$348	Average$530	FlexibilityNo cancel fee	On-time71%

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$140+ Cheap flights from Dulles Intl (IAD) to Key West (EYW)

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 4/24. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Key West with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Key West are usually found in September or January, booked 51 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from Dulles Intl to Key West

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Find flight deals from Dulles Intl to Key West

Cheapest flights from Dulles Intl to Key WestExplore the most affordable flight options available from Dulles Intl to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 11, 2025.

Explore the most affordable flight options available from Dulles Intl to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 11, 2025.

Cheapflights Fare Finder

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

Compare providers for flights from Dulles Intl to Key West

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Key West in April.

Best time to book a flight from Dulles Intl to Key West

Have a flexible travel schedule? Discover the best time to fly to Key West from Dulles Intl with our price prediction graph.

Cheapflights Insights

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

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Key West?

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Key West. Price data was last updated on April 4, 2025.

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

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

Find hourly flight availability from Dulles Intl to Key West. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 11, 2025.

Rainfall in Key West by month

Plan your trip to Key West by taking into account the average rainfall totals by month.

Temperature in Key West by month

Plan your trip to Key West by taking into account the average temperature totals by month.

Reviews of airlines servicing Key West

To help decide which airline to fly from Washington, D.C. to Key West, see what other customers have to say about Delta, United Airlines and American Airlines. 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 Dulles Intl to Key West. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Key West from Washington, D.C. Dulles Intl?

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Key West round-trip?

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

What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Key West?

Can I find deals for flights from Dulles Intl to Key West that include hotel bookings?

How can I find direct flights from Dulles Intl to Key West?

Can I find deals for business class flights from Dulles Intl to Key West?

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

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 Dulles Intl to Key West

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

Top 3 airlines flying from Dulles Intl to Key West

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Cheapest flights from Dulles Intl to Key West
Explore the most affordable flight options available from Dulles Intl to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 11, 2025.