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Dulles Intl

$238+ 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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
HYA — IAD
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
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 September 16, 2025.

Round-trip from

$465
(United)

One-way from

$238
(United)

Popular in

November

Cheapest in

January

Average price

$197
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 ($8 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 September 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 September 16, 2025.

This United deal was found by Cheapflights users on 9/15. 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.
Fri 9/198:55 amHYA - IAD
1 stop12h 00mMultiple Airlines
Mon 9/228:40 amIAD - HYA
2 stops9h 25mMultiple Airlines
Deal found 9/15$595
This United deal was found by Cheapflights users on 9/14. 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.
Fri 10/312:54 pmHYA - IAD
1 stop18h 17mMultiple Airlines
Sun 10/56:15 amIAD - HYA
2 stops11h 23mMultiple Airlines
Deal found 9/14$610
This United deal was found by Cheapflights users on 9/15. 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 9/2010:29 amHYA - IAD
1 stop4h 14mMultiple Airlines
Sun 9/218:55 amIAD - HYA
1 stop11h 32mMultiple Airlines
Deal found 9/15$670
This United deal was found by Cheapflights users on 9/15. 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.
Sun 9/216:48 amHYA - IAD
1 stop24h 22mMultiple Airlines
Mon 9/2210:18 pmIAD - HYA
1 stop13h 48mMultiple Airlines
Deal found 9/15$710

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 September 16, 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

Fri 10/3

12:54 pm-7:11 am

1 stop18h 17m

Washington, D.C. Dulles Intl

Sun 10/5

6:15 am-5:38 pm

2 stops11h 23m

$610

HyannisWashington, D.C.

HYA - IAD

HYAIAD

Hyannis Barnstable

Fri 10/3

10:29 am-11:14 am

1 stop24h 45m

$238

HyannisWashington, D.C.

HYA - IAD

HYAIAD

Hyannis Barnstable

Thu 9/25

6:48 am-11:14 am

1 stop4h 26m

$288

HyannisWashington, D.C.

HYA - IAD

HYAIAD

Hyannis Barnstable

Sun 10/19

4:09 pm-11:18 pm

3 stops31h 09m

$361

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

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, August is the cheapest month in which you can book a flight from Hyannis to Washington, D.C. Dulles Intl Airport (average of $292). 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, August is the cheapest month in which you can book a flight from Hyannis to Washington, D.C. Dulles Intl Airport (average of $292). 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
Gaithersburg
Fredericksburg
Linthicum Heights
Fairfax
Falls Church
Owings Mills
Manassas
Rockville
Hanover
Oxon Hill
Laurel
Towson
National Harbor
Dundalk

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