$339+ Cheap flights from Hyannis (HYA) to Dulles Intl (IAD)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
HYA — IAD
Nov 12 — Nov 191
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Hyannis to Dulles Intl with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Hyannis to Dulles Intl
Cheapest
Best
Last-minute
One-way
Cheapest flights from Hyannis to Dulles IntlExplore 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 October 13, 2026.
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 October 13, 2026.
This United deal was found by Cheapflights users on 10/13. 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 10/197:05 am -
1 stop12h 48m
Wed 10/211:10 pm -
1 stop20h 05m
Deal found 10/13![Multiple Airlines logo]()
$898
This United deal was found by Cheapflights users on 10/13. 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 11/127:05 am -
1 stop4h 10m
Thu 11/198:37 am -
2 stops7h 13m
Deal found 10/13![Multiple Airlines logo]()
$911
This Mytrip deal was found by Cheapflights users on 10/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:05 am -
3 stops27h 12m
Tue 10/279:06 pm -
2 stops18h 44m
Deal found 10/8![Multiple Airlines logo]()
$1,060
Best flights from Hyannis to Dulles IntlDiscover carefully curated flight deals from Hyannis to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 13, 2026.
Discover carefully curated flight deals from Hyannis to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 13, 2026.
This United deal was found by Cheapflights users on 10/13. 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 11/127:05 am -
1 stop4h 10m
Thu 11/198:37 am -
2 stops7h 13m
Deal found 10/13![Multiple Airlines logo]()
$911
This Mytrip deal was found by Cheapflights users on 10/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:05 am -
3 stops27h 12m
Tue 10/279:06 pm -
2 stops18h 44m
Deal found 10/8![Multiple Airlines logo]()
$1,060
Last-minute flights from Hyannis to Dulles IntlDiscover last-minute flight deals from Hyannis to Dulles Intl. Data last updated October 13, 2026 and is based on user searches.
Discover last-minute flight deals from Hyannis to Dulles Intl. Data last updated October 13, 2026 and is based on user searches.
This United deal was found by Cheapflights users on 10/13. 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 10/197:05 am -
1 stop12h 48m
Wed 10/211:10 pm -
1 stop20h 05m
Deal found 10/13![Multiple Airlines logo]()
$898
This Mytrip deal was found by Cheapflights users on 10/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:05 am -
3 stops27h 12m
Tue 10/279:06 pm -
2 stops18h 44m
Deal found 10/8![Multiple Airlines logo]()
$1,060
This United deal was found by Cheapflights users on 10/13. 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 11/127:05 am -
1 stop4h 10m
Thu 11/198:37 am -
2 stops7h 13m
Deal found 10/13![Multiple Airlines logo]()
$911
One-way flights from Hyannis to Dulles IntlSearch for one-way flight options from Hyannis to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated October 13, 2026.
Search for one-way flight options from Hyannis to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated October 13, 2026.
This United deal was found by Cheapflights users on 10/8. 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 1/912:45 pm -
2 stops22h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Multiple Airlines logo]()
$339
This United deal was found by Cheapflights users on 10/10. 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 1/108:48 am -
1 stop26h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/10![Multiple Airlines logo]()
$370
This United deal was found by Cheapflights users on 10/9. 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 11/1012:45 pm -
2 stops22h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Multiple Airlines logo]()
$379
This United deal was found by Cheapflights users on 10/9. 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 12/106:10 am -
2 stops25h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Multiple Airlines logo]()
$384
This United deal was found by Cheapflights users on 10/8. 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 11/912:45 pm -
2 stops22h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Multiple Airlines logo]()
$409
This United deal was found by Cheapflights users on 10/12. 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 11/1212:45 pm -
2 stops18h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Multiple Airlines logo]()
$413
This United deal was found by Cheapflights users on 10/13. 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 12/136:10 am -
2 stops25h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Multiple Airlines logo]()
$414
This United deal was found by Cheapflights users on 10/9. 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 12/912:45 pm -
2 stops8h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Multiple Airlines logo]()
$427
This United deal was found by Cheapflights users on 10/12. 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 10/227:05 am -
1 stop4h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Multiple Airlines logo]()
$449
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 October 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $670 (United) |
One-way from | $339 (United) |
Popular in | June |
Cheapest in | December |
Average price | $282 |
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 7,457,451 searches. Data last updated October 13, 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
Cheapest round-trip
HyannisWashington, D.C.
HYA Hyannis Barnstable - IAD Washington, D.C. Dulles Intl
HYAIAD
Hyannis Barnstable
Mon 1/11
12:45 pm-4:29 pm
3 stops27h 44m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$344
HyannisWashington, D.C.
HYA Hyannis Barnstable - IAD Washington, D.C. Dulles Intl
HYAIAD
Hyannis Barnstable
Sat 1/9
6:10 am-4:29 pm
3 stops10h 19m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$344
HyannisWashington, D.C.
HYA Hyannis Barnstable - IAD Washington, D.C. Dulles Intl
HYAIAD
Hyannis Barnstable
Wed 11/11
6:10 am-9:28 pm
2 stops15h 18m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$379
HyannisWashington, D.C.
HYA Hyannis Barnstable - IAD Washington, D.C. Dulles Intl
HYAIAD
Hyannis Barnstable
Thu 12/10
6:10 am-7:25 am
2 stops25h 15m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$384
HyannisWashington, D.C.
HYA Hyannis Barnstable - IAD Washington, D.C. Dulles Intl
HYAIAD
Hyannis Barnstable
Sun 12/13
6:10 am-7:25 am
2 stops25h 15m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$414
Quickest round-trip
HyannisWashington, D.C.
HYA Hyannis Barnstable - IAD Washington, D.C. Dulles Intl
HYAIAD
Hyannis Barnstable
Tue 11/10
7:05 am-11:15 am
1 stop4h 10m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$424
HyannisWashington, D.C.
HYA Hyannis Barnstable - IAD Washington, D.C. Dulles Intl
HYAIAD
Hyannis Barnstable
Mon 11/9
7:05 am-7:10 am
1 stop24h 05m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$430
HyannisWashington, D.C.
HYA Hyannis Barnstable - IAD Washington, D.C. Dulles Intl
HYAIAD
Hyannis Barnstable
Thu 11/12
10:26 am-7:10 am
1 stop20h 44m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$430
HyannisWashington, D.C.
HYA Hyannis Barnstable - IAD Washington, D.C. Dulles Intl
HYAIAD
Hyannis Barnstable
Sat 12/12
10:26 am-7:25 am
1 stop20h 59m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$430
HyannisWashington, D.C.
HYA Hyannis Barnstable - IAD Washington, D.C. Dulles Intl
HYAIAD
Hyannis Barnstable
Thu 11/12
7:05 am-11:15 am
1 stop4h 10m
Washington, D.C. Dulles Intl
Thu 11/19
8:37 am-3:50 pm
2 stops7h 13m
$911
Showing 1-10 of 11 resultsSorted by cheapest first
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.
HYA-IAD
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.
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 locationsAlexandria
Chantilly
Arlington
Woodbridge
Owings Mills
Lanham
Sterling
Tysons
Herndon
Reston
Hyattsville
Rockville
Springfield
Fredericksburg
Falls Church
Oxon Hill
Laurel
Towson
Clinton
Hunt Valley
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Dulles Intl flight routes
Flights by cabin class
Other flight options
Other flights from Hyannis
Popular flights