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Dulles Intl

$226+ Cheap flights from Hyannis (HYA) 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 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
HYA — IAD
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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Cheap flight deals from Hyannis to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Hyannis (HYA) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 20, 2025.

Round-trip from

$610
(United)

One-way from

$226
(Kiwi.com)

Popular in

November

Cheapest in

January

Average price

$213
From Hyannis Barnstable to Washington, D.C. Dulles Intl
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One-way flight from Hyannis Barnstable to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 4% potential increase in price ($9 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Hyannis to Dulles Intl

Cheapest flights from Hyannis to Dulles Intl
Explore the most affordable flight options available from Hyannis to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

This United deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2510:29 amHYA - IAD
1 stop20h 41mMultiple Airlines
Mon 9/16:20 amIAD - HYA
2 stops11h 45mMultiple Airlines
Deal found 8/18$596
This United deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/306:48 amHYA - IAD
1 stop4h 26mMultiple Airlines
Wed 10/18:30 amIAD - HYA
2 stops9h 08mMultiple Airlines
Deal found 8/20$610
This American Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2912:10 pmHYA - IAD
2 stops11h 42mAmerican Airlines
Mon 9/15:20 pmIAD - HYA
2 stops18h 20mAmerican Airlines
Deal found 8/18$675
This United deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/96:48 amHYA - IAD
1 stop9h 35mMultiple Airlines
Wed 9/108:55 amIAD - HYA
1 stop3h 34mMultiple Airlines
Deal found 8/20$715
This United deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2611:45 amHYA - IAD
2 stops11h 14mMultiple Airlines
Wed 8/278:40 amIAD - HYA
2 stops6h 30mMultiple Airlines
Deal found 8/19$717
This American Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2512:10 pmHYA - IAD
3 stops10h 46mAmerican Airlines
Mon 9/18:19 pmIAD - HYA
3 stops15h 21mAmerican Airlines
Deal found 8/18$763
This American Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/231:40 pmHYA - IAD
3 stops10h 17mAmerican Airlines
Sun 8/248:19 pmIAD - HYA
3 stops15h 21mAmerican Airlines
Deal found 8/18$789

Cheapflights Fare Finder

 
Customize your flight search to find flights from Hyannis to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 20, 2025.
Use the filters below to find and compare flights from Hyannis to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Hyannis

Fly to

Dulles Intl

Route

Depart

Return

Price

HyannisWashington, D.C.

HYA - IAD

HYAIAD

Hyannis Barnstable

Tue 9/30

6:48 am-11:14 am

1 stop4h 26m

Washington, D.C. Dulles Intl

Wed 10/1

8:30 am-5:38 pm

2 stops9h 08m

$610

HyannisWashington, D.C.

HYA - IAD

HYAIAD

Hyannis Barnstable

Tue 9/9

6:48 am-4:23 pm

1 stop9h 35m

Washington, D.C. Dulles Intl

Wed 9/10

8:55 am-12:29 pm

1 stop3h 34m

$715

HyannisWashington, D.C.

HYA - IAD

HYAIAD

Hyannis Barnstable

Sat 9/20

10:36 am-6:14 pm

3 stops31h 38m

$226

HyannisWashington, D.C.

HYA - IAD

HYAIAD

Hyannis Barnstable

Thu 8/28

11:45 am-10:59 pm

2 stops11h 14m

$299

HyannisWashington, D.C.

HYA - IAD

HYAIAD

Hyannis Barnstable

Tue 9/2

6:48 am-7:10 am

1 stop24h 22m

$378

HyannisWashington, D.C.

HYA - IAD

HYAIAD

Hyannis Barnstable

Tue 9/2

12:10 pm-11:02 pm

3 stops10h 52m

$468

HyannisWashington, D.C.

HYA - IAD

HYAIAD

Hyannis Barnstable

Thu 8/28

1:44 pm-11:59 pm

3 stops10h 15m

$481

HyannisWashington, D.C.

HYA - IAD

HYAIAD

Hyannis Barnstable

Mon 9/1

6:48 am-7:10 am

1 stop24h 22m

$529

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Best time to book a flight from Hyannis to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Hyannis 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 Hyannis to Washington, D.C. Dulles Intl Airport

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

Currently, July is the cheapest month in which you can book a flight from Hyannis to Washington, D.C. Dulles Intl Airport (average of $303). Flying from Hyannis to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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.

Related info for your journey

Find useful and relevant information for your journey from Hyannis 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 airport do you fly from for flights from Hyannis to Washington, D.C. Dulles Intl?

    Hyannis Barnstable (HYA), located 1.0 mi from the city center, is the airport you fly out of when you book flights from Hyannis to Washington, D.C. Dulles Intl. 0 airlines have flights from Barnstable to Washington, D.C. Dulles Intl on a regular basis. Booking flights from Hyannis Barnstable to Washington, D.C. Dulles Intl should not be difficult; the airport handles an average of 0 outbound flights to Washington, D.C. Dulles Intl per day.

  • Can I find deals for flights from Hyannis to Dulles Intl that include hotel bookings?

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

  • How can I find direct flights from Hyannis to Dulles Intl?

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

  • Can I find deals for business class flights from Hyannis to Dulles Intl?

    Yes. Cheapflights offers flight deals from Hyannis 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 Hyannis to Washington, D.C. Dulles Intl Airport?

    Currently, July is the cheapest month in which you can book a flight from Hyannis to Washington, D.C. Dulles Intl Airport (average of $303). Flying from Hyannis to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Springfield
Fredericksburg
Gaithersburg
Towson
Linthicum Heights
Fairfax
Manassas
Falls Church
Laurel
Rockville
Oxon Hill
National Harbor
Dundalk
Waldorf
Bowie

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