$238 Cheap Flights from Hyannis (HYA) to Washington (IAD)

View $238 flight on Sun, Mar 22, 2026Opens in a new window

Popular airlines from Hyannis, MA (HYA-Barnstable Municipal) to Washington Dulles Intl. Airport (IAD)

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Cheap Flights from Hyannis to Washington (HYA-IAD)

Prices were available within the past 7 days and start at $238 for one-way flights and $470 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Cape Air
Sat, Mar 21 - Tue, Mar 31
HYA
Hyannis
IAD
Washington
$470 Roundtrip, found 5 days ago
$470
Roundtrip
found 5 days ago
Select Cape Air flight, departing Sat, Mar 21 from Hyannis to Washington, returning Tue, Mar 31, priced at $470 found 5 days ago
Cape Air
Sat, Mar 21 - Tue, Mar 31
HYA
Hyannis
IAD
Washington
$485 Roundtrip, found 5 days ago
$485
Roundtrip
found 5 days ago
Select Cape Air flight, departing Sat, Mar 21 from Hyannis to Washington, returning Tue, Mar 31, priced at $485 found 5 days ago
Cape Air
Wed, Apr 8 - Wed, Apr 15
HYA
Hyannis
IAD
Washington
$499 Roundtrip, found 4 days ago
$499
Roundtrip
found 4 days ago
Select Cape Air flight, departing Wed, Apr 8 from Hyannis to Washington, returning Wed, Apr 15, priced at $499 found 4 days ago
Cape Air
Wed, Apr 8 - Wed, Apr 15
HYA
Hyannis
IAD
Washington
$504 Roundtrip, found 4 days ago
$504
Roundtrip
found 4 days ago
Select Cape Air flight, departing Wed, Apr 8 from Hyannis to Washington, returning Wed, Apr 15, priced at $504 found 4 days ago
Cape Air
Wed, Apr 8 - Wed, Apr 15
HYA
Hyannis
IAD
Washington
$509 Roundtrip, found 4 days ago
$509
Roundtrip
found 4 days ago
Select Cape Air flight, departing Wed, Apr 8 from Hyannis to Washington, returning Wed, Apr 15, priced at $509 found 4 days ago
Cape Air
Sat, Mar 21 - Tue, Mar 31
HYA
Hyannis
IAD
Washington
$535 Roundtrip, found 5 days ago
$535
Roundtrip
found 5 days ago
Select Cape Air flight, departing Sat, Mar 21 from Hyannis to Washington, returning Tue, Mar 31, priced at $535 found 5 days ago
American Airlines
Fri, Jul 3 - Tue, Jul 7
HYA
Hyannis
IAD
Washington
$546 Roundtrip, found 3 hours ago
$546
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Fri, Jul 3 from Hyannis to Washington, returning Tue, Jul 7, priced at $546 found 3 hours ago
Cape Air
Sat, Mar 21 - Tue, Mar 31
HYA
Hyannis
IAD
Washington
$550 Roundtrip, found 5 days ago
$550
Roundtrip
found 5 days ago
Select Cape Air flight, departing Sat, Mar 21 from Hyannis to Washington, returning Tue, Mar 31, priced at $550 found 5 days ago
Cape Air
Wed, Apr 8 - Wed, Apr 15
HYA
Hyannis
IAD
Washington
$607 Roundtrip, found 4 days ago
$607
Roundtrip
found 4 days ago
Select Cape Air flight, departing Wed, Apr 8 from Hyannis to Washington, returning Wed, Apr 15, priced at $607 found 4 days ago
Cape Air
Sat, Mar 21 - Tue, Mar 31
HYA
Hyannis
IAD
Washington
$610 Roundtrip, found 5 days ago
$610
Roundtrip
found 5 days ago
Select Cape Air flight, departing Sat, Mar 21 from Hyannis to Washington, returning Tue, Mar 31, priced at $610 found 5 days ago

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Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Ronald Reagan Washington National DCA. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $595
DCA
Ronald Reagan Washington National
CheapestClosest
Average driving time to city center8 min
Flights from $595

Frequently asked questions

How much does a flight from Hyannis, MA (HYA-Barnstable Municipal) to Washington, DC (IAD-Washington Dulles Intl.) cost?
You can find cheap one-way flights from $238 and cheap return flights from $470 HYA to IAD with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when HYA to IAD ticket fares go up or down.
What is the cheapest month to fly from Hyannis, MA (HYA-Barnstable Municipal) to Washington, DC (IAD-Washington Dulles Intl.)?
The cheapest month to fly from HYA to IAD is March when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Hyannis, MA (HYA-Barnstable Municipal) to Washington, DC (IAD-Washington Dulles Intl.)?
Enter HYA to IAD and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Hyannis, MA (HYA-Barnstable Municipal) to Washington, DC (IAD-Washington Dulles Intl.)?
To find a cheap flight from Hyannis, MA (HYA-Barnstable Municipal) to Washington, DC (IAD-Washington Dulles Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Hyannis, MA (HYA-Barnstable Municipal) to Washington, DC (IAD-Washington Dulles Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Hyannis, MA (HYA-Barnstable Municipal) to Washington, DC (IAD-Washington Dulles Intl.)?
Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from HYA to IAD. To compare more early flights, use the "Early Morning" and "Morning" filters in your search.
How long does it take to fly from Hyannis, MA (HYA-Barnstable Municipal) to Washington, DC (IAD-Washington Dulles Intl.)?
A flight from HYA to IAD with a layover takes around 4 hours, with the route covering approximately 421 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Hyannis, MA (HYA-Barnstable Municipal) to Washington, DC (IAD-Washington Dulles Intl.)?
Select the "Business class" and "First class" filters when looking for HYA to IAD flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Hyannis, MA (HYA-Barnstable Municipal) to Washington, DC (IAD-Washington Dulles Intl.) flight with Expedia?
It's easy to earn miles on a Hyannis, MA (HYA-Barnstable Municipal) to Washington, DC (IAD-Washington Dulles Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Washington from Barnstable Municipal (HYA)?
If you're planning to travel to Washington from Barnstable Municipal (HYA), you can fly into Ronald Reagan Washington National (DCA) Some flights may connect through major hubs like Logan Intl. (BOS), Martha's Vineyard (MVY), Nantucket Memorial (ACK) before reaching Washington. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Hyannis, MA (HYA-Barnstable Municipal) to Washington, DC (IAD-Washington Dulles Intl.) at the last minute?
Typically, booking a last minute flight from Hyannis, MA (HYA-Barnstable Municipal) to Washington, DC (IAD-Washington Dulles Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Hyannis, MA (HYA-Barnstable Municipal) to Washington, DC (IAD-Washington Dulles Intl.) flight and hotel package?
Securing a Hyannis, MA (HYA-Barnstable Municipal) to Washington, DC (IAD-Washington Dulles Intl.) Fairfax County Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Hyannis, MA (HYA-Barnstable Municipal) to Washington, DC (IAD-Washington Dulles Intl.)?
If you booked your Hyannis, MA (HYA-Barnstable Municipal) to Washington, DC (IAD-Washington Dulles Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Barnstable Municipal
Destination airport
Washington Dulles Intl.
Airlines serving
American Airlines
Roundtrip price
$470
Distance
421 mi

Book with confidence

Hyannis to Washington Flights

The cheapest times to fly from Hyannis to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Hyannis to Washington are during the month of March. You can find some of the cheapest flights from Hyannis to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Hyannis to Washington

Sunday is one of the best days to book for cheap flights from Hyannis to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Hyannis to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Hyannis to Washington in 2026. You can also book with separate airlines for your outbound and return journeys, from $238 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Hyannis to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Hyannis to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Hyannis to Washington Flights

*Flight schedules are subject to change.

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