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Dulles Intl

$263+ 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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
HYA — IAD
Aug 31 — Sep 71
Mon 8/31
Mon 9/7
1 adult, Economy
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Cheap 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 1, 2026.

This United deal was found by Cheapflights users on 7/27. 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.
Thu 8/272:10 pm
HYA
-
IAD
1 stop17h 10m
Multiple Airlines
Sun 8/308:35 am
IAD
-
HYA
1 stop6h 20m
Multiple Airlines
Deal found 7/27$514
This United deal was found by Cheapflights users on 7/29. 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.
Sat 9/511:02 am
HYA
-
IAD
2 stops11h 57m
Multiple Airlines
Sun 9/68:35 am
IAD
-
HYA
1 stop7h 30m
Multiple Airlines
Deal found 7/29$520
This United deal was found by Cheapflights users on 7/27. 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.
Wed 8/1911:02 am
HYA
-
IAD
1 stop20h 18m
Multiple Airlines
Sat 8/2210:15 pm
IAD
-
HYA
1 stop16h 40m
Multiple Airlines
Deal found 7/27$534
This American Airlines deal was found by Cheapflights users on 7/28. 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.
Tue 8/251:47 pm
HYA
-
IAD
2 stops9h 08m
American Airlines
Tue 9/16:10 am
IAD
-
HYA
2 stops7h 04m
American Airlines
Deal found 7/28$575
This American Airlines deal was found by Cheapflights users on 7/27. 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.
Wed 8/1912:42 pm
HYA
-
IAD
2 stops10h 13m
American Airlines
Sat 8/225:34 pm
IAD
-
HYA
2 stops18h 38m
American Airlines
Deal found 7/27$581
This American Airlines deal was found by Cheapflights users on 7/29. 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 9/512:42 pm
HYA
-
IAD
2 stops9h 11m
American Airlines
Sun 9/66:33 am
IAD
-
HYA
2 stops6h 38m
American Airlines
Deal found 7/29$618
This American Airlines deal was found by Cheapflights users on 7/27. 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.
Thu 8/271:47 pm
HYA
-
IAD
2 stops9h 08m
American Airlines
Sun 8/306:33 am
IAD
-
HYA
2 stops6h 41m
American Airlines
Deal found 7/27$634

Find 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 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$514
(United)

One-way from

$263
(United)

Popular in

June

Cheapest in

December

Average price

$256
Provider with most accurate pricing for Boston Logan Intl-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Washington, D.C. (WAS) flights.
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From Hyannis Barnstable to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Hyannis Barnstable to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($36 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

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 1, 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HyannisWashington, D.C.

HYA - IAD

HYAIAD

Hyannis Barnstable

Thu 8/27

2:10 pm-7:20 am

1 stop17h 10m

Washington, D.C. Dulles Intl

Sun 8/30

8:35 am-2:55 pm

1 stop6h 20m

$514
Quickest round-trip

HyannisWashington, D.C.

HYA - IAD

HYAIAD

Hyannis Barnstable

Sat 9/5

11:02 am-10:59 pm

2 stops11h 57m

Washington, D.C. Dulles Intl

Sun 9/6

8:35 am-4:05 pm

1 stop7h 30m

$520

HyannisWashington, D.C.

HYA - IAD

HYAIAD

Hyannis Barnstable

Wed 8/19

11:02 am-7:20 am

1 stop20h 18m

Washington, D.C. Dulles Intl

Sat 8/22

10:15 pm-2:55 pm

1 stop16h 40m

$534

HyannisWashington, D.C.

HYA - IAD

HYAIAD

Hyannis Barnstable

Wed 8/19

1:47 pm-10:55 pm

2 stops9h 08m

Washington, D.C. Dulles Intl

Sat 8/22

5:34 pm-12:12 pm

3 stops18h 38m

$692

HyannisWashington, D.C.

HYA - IAD

HYAIAD

Hyannis Barnstable

Thu 10/22

1:20 pm-7:20 am

1 stop18h 00m

Washington, D.C. Dulles Intl

Sun 10/25

10:35 pm-3:00 pm

2 stops16h 25m

$865

HyannisWashington, D.C.

HYA - IAD

HYAIAD

Hyannis Barnstable

Thu 8/13

12:42 pm-10:55 pm

2 stops10h 13m

Washington, D.C. Dulles Intl

Mon 8/17

5:34 pm-12:12 pm

3 stops18h 38m

$905

HyannisWashington, D.C.

HYA - IAD

HYAIAD

Hyannis Barnstable

Tue 8/11

11:02 am-7:20 am

1 stop20h 18m

Washington, D.C. Dulles Intl

Thu 8/13

10:15 pm-5:12 pm

1 stop18h 57m

$934
Cheapest one-way
Quickest one-way

HyannisWashington, D.C.

HYA - IAD

HYAIAD

Hyannis Barnstable

Sat 9/5

11:02 am-9:08 pm

1 stop10h 06m

$263

HyannisWashington, D.C.

HYA - IAD

HYAIAD

Hyannis Barnstable

Sat 8/29

2:10 pm-7:20 am

1 stop17h 10m

$297

HyannisWashington, D.C.

HYA - IAD

HYAIAD

Hyannis Barnstable

Tue 8/18

11:02 am-7:20 am

1 stop20h 18m

$303

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

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.

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.

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
Alexandria
Owings Mills
Arlington
Tysons
Springfield
Lanham
Reston
Herndon
Rockville
Chantilly
Hyattsville
Fredericksburg
Falls Church
Hanover
Laurel
Sterling
Clinton
Hunt Valley
Cordova
Woodbridge

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