S$185 Cheap Flights from Washington to Key West

View S$185 flight on Wed, 2 Jul, 2025Opens in a new window

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

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 40% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards
    Sign in

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

Prices were available within the past 7 days and start at S$185 for one-way flights and S$347 for return, for the period specified. Prices and availability are subject to change. Additional terms apply.
Delta
Mon, 28 Jul - Mon, 4 Aug
IAD
Washington
EYW
Key West
S$347
Return
Found 1 day ago
Select Delta flight, departing Mon, 28 Jul from Washington to Key West, returning Mon, 4 Aug, priced at S$347 Found 1 day ago
Delta
Mon, 28 Jul - Mon, 4 Aug
IAD
Washington
EYW
Key West
S$404
Return
Found 1 day ago
Select Delta flight, departing Mon, 28 Jul from Washington to Key West, returning Mon, 4 Aug, priced at S$404 Found 1 day ago
Delta
Mon, 28 Jul - Mon, 4 Aug
IAD
Washington
EYW
Key West
S$468
Return
Found 1 day ago
Select Delta flight, departing Mon, 28 Jul from Washington to Key West, returning Mon, 4 Aug, priced at S$468 Found 1 day ago
United
Wed, 2 Jul - Tue, 8 Jul
IAD
Washington
EYW
Key West
S$556
Return
Found 8 hours ago
Select United flight, departing Wed, 2 Jul from Washington to Key West, returning Tue, 8 Jul, priced at S$556 Found 8 hours ago
United
Wed, 2 Jul - Tue, 8 Jul
IAD
Washington
EYW
Key West
S$569
Return
Found 8 hours ago
Select United flight, departing Wed, 2 Jul from Washington to Key West, returning Tue, 8 Jul, priced at S$569 Found 8 hours ago
Delta
Mon, 28 Jul - Mon, 4 Aug
IAD
Washington
EYW
Key West
S$610
Return
Found 1 day ago
Select Delta flight, departing Mon, 28 Jul from Washington to Key West, returning Mon, 4 Aug, priced at S$610 Found 1 day ago
United
Wed, 2 Jul - Tue, 8 Jul
IAD
Washington
EYW
Key West
S$637
Return
Found 8 hours ago
Select United flight, departing Wed, 2 Jul from Washington to Key West, returning Tue, 8 Jul, priced at S$637 Found 8 hours ago
United
Wed, 2 Jul - Tue, 8 Jul
IAD
Washington
EYW
Key West
S$645
Return
Found 8 hours ago
Select United flight, departing Wed, 2 Jul from Washington to Key West, returning Tue, 8 Jul, priced at S$645 Found 8 hours ago
American Airlines
Mon, 28 Jul - Mon, 4 Aug
IAD
Washington
EYW
Key West
S$649
Return
Found 1 day ago
Select American Airlines flight, departing Mon, 28 Jul from Washington to Key West, returning Mon, 4 Aug, priced at S$649 Found 1 day ago
Delta
Mon, 28 Jul - Mon, 4 Aug
IAD
Washington
EYW
Key West
S$668
Return
Found 1 day ago
Select Delta flight, departing Mon, 28 Jul from Washington to Key West, returning Mon, 4 Aug, priced at S$668 Found 1 day ago
Delta
Mon, 28 Jul - Mon, 4 Aug
IAD
Washington
EYW
Key West
S$703
Return
Found 1 day ago
Select Delta flight, departing Mon, 28 Jul from Washington to Key West, returning Mon, 4 Aug, priced at S$703 Found 1 day ago
United
Wed, 2 Jul - Tue, 8 Jul
IAD
Washington
EYW
Key West
S$705
Return
Found 8 hours ago
Select United flight, departing Wed, 2 Jul from Washington to Key West, returning Tue, 8 Jul, priced at S$705 Found 8 hours ago
Washington to Key West route information
Origin airport
Washington Dulles Intl.
Destination airport
Key West Intl.
Return price
S$346
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 United, Delta, 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$185 and roundtrip prices from S$347*.
 

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$347. 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.