S$324 Cheap Flights from Washington to Key West

View S$324 flight on Sun, 17 Aug, 2025Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Key West Intl. Airport (EYW)

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Cheap Flights from Washington to Key West (IAD-EYW)

Prices were available within the past 7 days and start at S$324 for one-way flights and S$668 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sun, 17 Aug - Sun, 24 Aug
IAD
Washington
EYW
Key West
S$668 Return, found 1 day ago
S$668
Return
found 1 day ago
Select Delta flight, departing Sun, 17 Aug from Washington to Key West, returning Sun, 24 Aug, priced at S$668 found 1 day ago
American Airlines
Sun, 17 Aug - Sun, 24 Aug
IAD
Washington
EYW
Key West
S$694 Return, found 1 day ago
S$694
Return
found 1 day ago
Select American Airlines flight, departing Sun, 17 Aug from Washington to Key West, returning Sun, 24 Aug, priced at S$694 found 1 day ago
Delta
Sun, 17 Aug - Sun, 24 Aug
IAD
Washington
EYW
Key West
S$725 Return, found 1 day ago
S$725
Return
found 1 day ago
Select Delta flight, departing Sun, 17 Aug from Washington to Key West, returning Sun, 24 Aug, priced at S$725 found 1 day ago
Delta
Sun, 17 Aug - Sun, 24 Aug
IAD
Washington
EYW
Key West
S$749 Return, found 1 day ago
S$749
Return
found 1 day ago
Select Delta flight, departing Sun, 17 Aug from Washington to Key West, returning Sun, 24 Aug, priced at S$749 found 1 day ago
Delta
Sun, 17 Aug - Sun, 24 Aug
IAD
Washington
EYW
Key West
S$757 Return, found 1 day ago
S$757
Return
found 1 day ago
Select Delta flight, departing Sun, 17 Aug from Washington to Key West, returning Sun, 24 Aug, priced at S$757 found 1 day ago
United
Sun, 17 Aug - Sun, 24 Aug
IAD
Washington
EYW
Key West
S$773 Return, found 1 day ago
S$773
Return
found 1 day ago
Select United flight, departing Sun, 17 Aug from Washington to Key West, returning Sun, 24 Aug, priced at S$773 found 1 day ago
Delta
Sun, 17 Aug - Sun, 24 Aug
IAD
Washington
EYW
Key West
S$789 Return, found 1 day ago
S$789
Return
found 1 day ago
Select Delta flight, departing Sun, 17 Aug from Washington to Key West, returning Sun, 24 Aug, priced at S$789 found 1 day ago
United
Sun, 17 Aug - Sun, 24 Aug
IAD
Washington
EYW
Key West
S$807 Return, found 1 day ago
S$807
Return
found 1 day ago
Select United flight, departing Sun, 17 Aug from Washington to Key West, returning Sun, 24 Aug, priced at S$807 found 1 day ago
Delta
Sun, 17 Aug - Sun, 24 Aug
IAD
Washington
EYW
Key West
S$814 Return, found 1 day ago
S$814
Return
found 1 day ago
Select Delta flight, departing Sun, 17 Aug from Washington to Key West, returning Sun, 24 Aug, priced at S$814 found 1 day ago
American Airlines
Sun, 17 Aug - Sun, 24 Aug
IAD
Washington
EYW
Key West
S$832 Return, found 1 day ago
S$832
Return
found 1 day ago
Select American Airlines flight, departing Sun, 17 Aug from Washington to Key West, returning Sun, 24 Aug, priced at S$832 found 1 day ago
Delta
Sun, 17 Aug - Sun, 24 Aug
IAD
Washington
EYW
Key West
S$859 Return, found 1 day ago
S$859
Return
found 1 day ago
Select Delta flight, departing Sun, 17 Aug from Washington to Key West, returning Sun, 24 Aug, priced at S$859 found 1 day ago
Delta
Sun, 17 Aug - Sun, 24 Aug
IAD
Washington
EYW
Key West
S$879 Return, found 1 day ago
S$879
Return
found 1 day ago
Select Delta flight, departing Sun, 17 Aug from Washington to Key West, returning Sun, 24 Aug, priced at S$879 found 1 day ago
United
Sun, 17 Aug - Sun, 24 Aug
IAD
Washington
EYW
Key West
S$883 Return, found 1 day ago
S$883
Return
found 1 day ago
Select United flight, departing Sun, 17 Aug from Washington to Key West, returning Sun, 24 Aug, priced at S$883 found 1 day ago
American Airlines
Sun, 17 Aug - Sun, 24 Aug
IAD
Washington
EYW
Key West
S$909 Return, found 1 day ago
S$909
Return
found 1 day ago
Select American Airlines flight, departing Sun, 17 Aug from Washington to Key West, returning Sun, 24 Aug, priced at S$909 found 1 day ago
Delta
Sun, 17 Aug - Sun, 24 Aug
IAD
Washington
EYW
Key West
S$916 Return, found 1 day ago
S$916
Return
found 1 day ago
Select Delta flight, departing Sun, 17 Aug from Washington to Key West, returning Sun, 24 Aug, priced at S$916 found 1 day ago
American Airlines
Sun, 17 Aug - Sun, 24 Aug
IAD
Washington
EYW
Key West
S$928 Return, found 1 day ago
S$928
Return
found 1 day ago
Select American Airlines flight, departing Sun, 17 Aug from Washington to Key West, returning Sun, 24 Aug, priced at S$928 found 1 day ago

Find the cheapest month to fly from Washington (IAD) to Key West (EYW)

March is typically the cheapest month to fly

From S$240 - S$776 per traveller.

Graph displaying average flight prices per month

Washington to Key West route information
Origin airport
Washington Dulles Intl.
Destination airport
Key West Intl.
Return price
S$668
Distance
1641 km

Perfect flights from Washington to Key West

Your Journey from Washington to Key West

Start your unforgettable journey with Expedia. Our broad selection of flights from Washington to Key West caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including Delta, United, American Airlines. Our selection of flights from Washington Dulles Intl. to Key West Intl. caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Washington to Key West Flights

Experience the joy of finding cheap flights from Washington Dulles Intl. to Key West Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$324 and roundtrip prices from S$668*.
 

Pre-Flight Essentials

Ensure a smooth journey from Washington to Key West with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Key West

Picture yourself stepping off the plane in Key West and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Washington to Key West Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Washington to Key West.
 

Beyond the Flight – Exploring Key West

With Expedia, your adventure extends beyond the flight. Explore Key West at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Washington to Key West with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Washington to Key West with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

Frequently asked questions

How much is a flight from Washington Dulles Intl. Airport (IAD) to Key West Intl. Airport (EYW)?
If you're planning on travelling between Washington Dulles Intl. Airport (IAD) and Key West Intl. Airport (EYW), round-trip journeys start from S$668. This price is based on fares advertised within the last 7 days on Expedia for flights departing within the next year, so don't delay. Book now and save yourself money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Washington Dulles Intl. Airport (IAD) to Key West Intl. Airport?
Most flights can be cancelled online, but every airline has a different set of terms and conditions. If you do need to cancel your flight, visit our Customer Service Portal and follow the instructions.
How do I find cheap flights from Dulles Intl. Airport to Key West Intl. Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for IAD to Key West Intl. Airport (EYW) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Washington Dulles Intl. Airport (IAD) to Key West Intl. Airport (EYW)?
Around 1,650 kilometres separates Chantilly and Key West, so pack some in-flight entertainment to keep you busy for a few hours. That juicy novel you haven't started will be perfect.
Which airlines fly direct from Washington Dulles Intl. Airport (IAD) to EYW?
Check out the airfares with United Airlines (UA) if you want to fly straight from IAD to Key West Intl. Airport. This popular carrier operates 4 flights monthly, so you're sure to find one that fits your schedule.
Are Washington Dulles Intl. Airport (IAD) to Key West Intl. Airport (EYW) flight tickets cheaper when they're purchased at the last minute?
Flight prices are constantly going up and down, so it's no sure thing. While last-minute deals between IAD and Key West Intl. Airport are possible, it also makes sense to keep track of prices well before you fly. In fact, some carriers publicize their prices up to 12 months ahead of the departure date. Expedia is continuously updating the biggest bargains around, so keep checking back and be ready to book when the price is right.

Explore a world of travel with Expedia

*Available to Expedia members.