$344+ Cheap flights from Dulles Intl (IAD) to Hilo (ITO)
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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ITO
Oct 10 — Oct 171
Round-trip
1 adult, Economy
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Find cheap flights from Dulles Intl to Hilo 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 Dulles Intl to Hilo
Cheapest
Best
Last-minute
One-way
Cheapest flights from Dulles Intl to HiloExplore the most affordable flight options available from Dulles Intl to Hilo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.
Explore the most affordable flight options available from Dulles Intl to Hilo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.
This Booking.com deal was found by Cheapflights users on 9/7. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/97:00 am -
2 stops40h 19m
Wed 1/67:30 pm -
2 stops17h 20m
Deal found 9/7![Multiple Airlines logo]()
$668
This Priceline deal was found by Cheapflights users on 9/9. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/55:38 pm -
2 stops24h 45m
Thu 12/108:45 pm -
2 stops17h 16m
Deal found 9/9![Multiple Airlines logo]()
$733
This Alaska Airlines deal was found by Cheapflights users on 9/7. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/299:03 am -
2 stops15h 14m
Mon 10/58:30 am -
2 stops33h 29m
Deal found 9/7![Multiple Airlines logo]()
$737
This American Airlines deal was found by Cheapflights users on 9/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/27:14 am -
2 stops15h 33m
Thu 2/256:19 pm -
2 stops12h 20m
Deal found 9/9![American Airlines logo]()
$751
This Booking.com deal was found by Cheapflights users on 9/9. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/65:25 pm -
2 stops43h 35m
Tue 12/156:51 pm -
2 stops19h 10m
Deal found 9/9![Multiple Airlines logo]()
$769
This American Airlines deal was found by Cheapflights users on 9/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:00 am -
2 stops15h 21m
Sun 11/85:50 pm -
2 stops14h 43m
Deal found 9/8![American Airlines logo]()
$790
This Booking.com deal was found by Cheapflights users on 9/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:02 am -
2 stops41h 15m
Thu 10/88:30 am -
2 stops33h 29m
Deal found 9/6![Multiple Airlines logo]()
$817
This American Airlines deal was found by Cheapflights users on 9/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:00 am -
2 stops14h 27m
Fri 10/231:51 pm -
2 stops18h 27m
Deal found 9/8![American Airlines logo]()
$829
This Expedia deal was found by Cheapflights users on 9/5. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/169:03 am -
2 stops15h 14m
Tue 9/226:49 pm -
2 stops17h 25m
Deal found 9/5![Multiple Airlines logo]()
$911
This Priceline deal was found by Cheapflights users on 9/7. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/47:02 am -
2 stops16h 44m
Sun 10/117:30 pm -
2 stops28h 10m
Deal found 9/7![Multiple Airlines logo]()
$915
Best flights from Dulles Intl to HiloDiscover carefully curated flight deals from Dulles Intl to Hilo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
Discover carefully curated flight deals from Dulles Intl to Hilo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/266:53 pm -
2 stops28h 26m
Thu 2/47:30 pm -
2 stops17h 20m
Deal found 9/9![Multiple Airlines logo]()
$641
This United Airlines deal was found by Cheapflights users on 9/9. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/228:25 am -
1 stop16h 46m
Tue 2/237:36 am -
1 stop18h 07m
Deal found 9/9![United Airlines logo]()
$961
This Booking.com deal was found by Cheapflights users on 9/5. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/56:53 pm -
2 stops30h 18m
Mon 1/116:51 pm -
2 stops16h 36m
Deal found 9/5![Multiple Airlines logo]()
$676
This Alaska Airlines deal was found by Cheapflights users on 9/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/227:00 am -
2 stops18h 11m
Tue 2/236:51 pm -
2 stops19h 10m
Deal found 9/9![Multiple Airlines logo]()
$721
Last-minute flights from Dulles Intl to HiloDiscover last-minute flight deals from Dulles Intl to Hilo. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from Dulles Intl to Hilo. Data last updated September 10, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 9/5. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/169:03 am -
2 stops15h 14m
Tue 9/226:49 pm -
2 stops17h 25m
Deal found 9/5![Multiple Airlines logo]()
$911
This Expedia deal was found by Cheapflights users on 9/5. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:00 am -
2 stops19h 13m
Fri 9/258:45 pm -
2 stops15h 29m
Deal found 9/5![Multiple Airlines logo]()
$991
This Alaska Airlines deal was found by Cheapflights users on 9/7. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/299:03 am -
2 stops15h 14m
Mon 10/58:30 am -
2 stops33h 29m
Deal found 9/7![Multiple Airlines logo]()
$737
This American Airlines deal was found by Cheapflights users on 9/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:14 am -
3 stops18h 58m
Tue 10/273:53 pm -
2 stops16h 25m
Deal found 9/8![American Airlines logo]()
$971
This Booking.com deal was found by Cheapflights users on 9/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:02 am -
2 stops41h 15m
Thu 10/88:30 am -
2 stops33h 29m
Deal found 9/6![Multiple Airlines logo]()
$817
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:02 am -
2 stops17h 52m
Sun 10/118:45 pm -
2 stops21h 14m
Deal found 9/6![Multiple Airlines logo]()
$956
This Priceline deal was found by Cheapflights users on 9/6. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:02 am -
2 stops37h 25m
Sat 10/107:30 pm -
2 stops28h 10m
Deal found 9/6![Multiple Airlines logo]()
$1,013
This Priceline deal was found by Cheapflights users on 9/7. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/47:02 am -
2 stops16h 44m
Sun 10/117:30 pm -
2 stops28h 10m
Deal found 9/7![Multiple Airlines logo]()
$915
This American Airlines deal was found by Cheapflights users on 9/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:00 am -
2 stops14h 27m
Fri 10/231:51 pm -
2 stops18h 27m
Deal found 9/8![American Airlines logo]()
$829
This American Airlines deal was found by Cheapflights users on 9/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:00 am -
2 stops15h 21m
Mon 10/194:51 pm -
2 stops15h 27m
Deal found 9/8![American Airlines logo]()
$1,002
This American Airlines deal was found by Cheapflights users on 9/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:00 am -
2 stops15h 21m
Sun 11/85:50 pm -
2 stops14h 43m
Deal found 9/8![American Airlines logo]()
$790
One-way flights from Dulles Intl to HiloSearch for one-way flight options from Dulles Intl to Hilo. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
Search for one-way flight options from Dulles Intl to Hilo. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:02 am -
2 stops16h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$344
This Booking.com deal was found by Cheapflights users on 9/5. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:02 am -
2 stops19h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$388
This American Airlines deal was found by Cheapflights users on 9/5. 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 10/2010:35 am -
3 stops17h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![American Airlines logo]()
$679
Find flight deals from Dulles Intl to Hilo
Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Hilo (ITO). 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 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $641 (Alaska Airlines) |
One-way from | $344 (Alaska Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from Dulles Intl to Hilo 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 September 10, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Hilo that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
Washington, D.C.Hilo
IAD Washington, D.C. Dulles Intl - ITO Hilo Intl
IADITO
Washington, D.C. Dulles Intl
Tue 10/20
7:02 am-5:46 pm
2 stops16h 44m
Hilo Intl
Wed 12/31
12:00 am-5:00 am
Nonstop0h 00m
$344
Washington, D.C.Hilo
IAD Washington, D.C. Dulles Intl - ITO Hilo Intl
IADITO
Washington, D.C. Dulles Intl
Mon 10/19
7:02 am-8:54 am
3 stops31h 52m
Hilo Intl
Wed 12/31
12:00 am-5:00 am
Nonstop0h 00m
$569
Washington, D.C.Hilo
IAD Washington, D.C. Dulles Intl - ITO Hilo Intl
IADITO
Washington, D.C. Dulles Intl
Tue 1/26
6:53 pm-6:19 pm
2 stops28h 26m
Hilo Intl
Thu 2/4
7:30 pm-5:50 pm
2 stops17h 20m
$641
Washington, D.C.Hilo
IAD Washington, D.C. Dulles Intl - ITO Hilo Intl
IADITO
Washington, D.C. Dulles Intl
Tue 1/5
6:53 pm-8:11 pm
2 stops30h 18m
Hilo Intl
Mon 1/11
6:51 pm-4:27 pm
2 stops16h 36m
$676
Washington, D.C.Hilo
IAD Washington, D.C. Dulles Intl - ITO Hilo Intl
IADITO
Washington, D.C. Dulles Intl
Tue 10/20
10:35 am-9:57 pm
3 stops17h 22m
Hilo Intl
Wed 12/31
12:00 am-5:00 am
Nonstop0h 00m
$679
Washington, D.C.Hilo
IAD Washington, D.C. Dulles Intl - ITO Hilo Intl
IADITO
Washington, D.C. Dulles Intl
Mon 2/22
7:00 am-8:11 pm
2 stops18h 11m
Hilo Intl
Tue 2/23
6:51 pm-7:01 pm
2 stops19h 10m
$721
Washington, D.C.Hilo
IAD Washington, D.C. Dulles Intl - ITO Hilo Intl
IADITO
Washington, D.C. Dulles Intl
Mon 2/22
8:25 am-8:11 pm
1 stop16h 46m
Hilo Intl
Tue 2/23
7:36 am-6:43 am
1 stop18h 07m
$961
Sorted by cheapest first
Compare providers for flights from Dulles Intl to Hilo
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Hilo in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Hilo flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Hilo flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Hilo flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Hilo flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Hilo flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Dulles Intl to Hilo
Have a flexible travel schedule? Discover the best time to fly to Hilo from Dulles Intl with our price prediction graph.
IAD-ITO
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 Dulles Intl to Hilo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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