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Hilo

$510+ 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 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ITO
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Dulles Intl to Hilo

Cheapest flights from Dulles Intl to Hilo
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 December 12, 2025.

This Delta deal was found by Cheapflights users on 12/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/126:00 amIAD - ITO
2 stops16h 39mDelta
Mon 12/153:02 pmITO - IAD
2 stops15h 16mDelta
Deal found 12/10$983
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Wed 12/3110:05 pmIAD - ITO
2 stops26h 54mUnited Airlines
Thu 1/86:44 pmITO - IAD
1 stop31h 39mUnited Airlines
Deal found 12/11$1,043
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Wed 12/3110:05 pmIAD - ITO
2 stops26h 54mUnited Airlines
Tue 1/67:44 pmITO - IAD
2 stops28h 40mUnited Airlines
Deal found 12/11$1,053
This Delta deal was found by Cheapflights users on 12/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:00 amIAD - ITO
2 stops16h 51mDelta
Wed 1/79:55 amITO - IAD
2 stops23h 04mDelta
Deal found 12/11$1,060
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Wed 12/318:15 amIAD - ITO
1 stop15h 59mUnited Airlines
Fri 1/98:24 amITO - IAD
2 stops22h 22mUnited Airlines
Deal found 12/11$1,112
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Tue 12/3012:40 pmIAD - ITO
2 stops35h 34mUnited Airlines
Tue 1/66:44 pmITO - IAD
2 stops31h 30mUnited Airlines
Deal found 12/11$1,123
This Expedia deal was found by Cheapflights users on 12/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/177:34 amIAD - ITO
2 stops16h 31mMultiple Airlines
Tue 12/238:29 pmITO - IAD
2 stops15h 52mMultiple Airlines
Deal found 12/10$1,137
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Wed 12/318:15 amIAD - ITO
1 stop15h 59mUnited Airlines
Wed 1/77:44 pmITO - IAD
1 stop30h 39mUnited Airlines
Deal found 12/11$1,157
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Tue 12/3010:33 pmIAD - ITO
2 stops24h 18mUnited Airlines
Thu 1/87:44 pmITO - IAD
1 stop30h 39mUnited Airlines
Deal found 12/11$1,175
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Tue 12/3010:33 pmIAD - ITO
2 stops24h 18mUnited Airlines
Fri 1/98:24 amITO - IAD
2 stops22h 22mUnited Airlines
Deal found 12/11$1,184

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 December 12, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$510
(Alaska Airlines)

Popular in

March

Cheapest in

November

Average price

$645
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Hilo Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Hilo Intl flights.
Search Deals
From Washington, D.C. Dulles Intl to Hilo Intl
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($98 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 2,558,603 searches. Data last updated December 12, 2025.
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

Dulles Intl

Fly to

Hilo

Route

Depart

Return

Price

Washington, D.C.Hilo

IAD - ITO

IADITO

Washington, D.C. Dulles Intl

Mon 2/2

6:04 pm-5:29 pm

2 stops28h 25m

Hilo Intl

Tue 2/10

7:44 pm-4:26 pm

2 stops15h 42m

$542

Washington, D.C.Hilo

IAD - ITO

IADITO

Washington, D.C. Dulles Intl

Mon 3/2

6:20 pm-4:00 pm

2 stops26h 40m

Hilo Intl

Wed 3/4

6:44 pm-5:27 pm

2 stops17h 43m

$545

Washington, D.C.Hilo

IAD - ITO

IADITO

Washington, D.C. Dulles Intl

Mon 3/2

6:20 pm-5:29 pm

2 stops28h 09m

Hilo Intl

Wed 3/4

6:44 pm-5:27 pm

2 stops17h 43m

$556

Washington, D.C.Hilo

IAD - ITO

IADITO

Washington, D.C. Dulles Intl

Tue 1/6

7:33 am-9:15 pm

2 stops18h 42m

Hilo Intl

Tue 1/13

7:44 pm-4:26 pm

2 stops15h 42m

$580

Washington, D.C.Hilo

IAD - ITO

IADITO

Washington, D.C. Dulles Intl

Fri 1/16

5:26 pm-8:29 pm

2 stops32h 03m

Hilo Intl

Tue 1/27

8:30 pm-5:04 pm

2 stops15h 34m

$706

Washington, D.C.Hilo

IAD - ITO

IADITO

Washington, D.C. Dulles Intl

Mon 3/2

8:25 am-5:29 pm

1 stop14h 04m

Hilo Intl

Wed 3/4

6:00 am-7:16 am

1 stop20h 16m

$825

Washington, D.C.Hilo

IAD - ITO

IADITO

Washington, D.C. Dulles Intl

Mon 2/2

8:15 am-7:04 pm

1 stop15h 49m

Hilo Intl

Tue 2/10

7:44 pm-7:35 pm

2 stops18h 51m

$832

Washington, D.C.Hilo

IAD - ITO

IADITO

Washington, D.C. Dulles Intl

Thu 1/1

8:15 am-7:14 pm

1 stop15h 59m

Hilo Intl

Fri 1/9

7:44 pm-7:23 am

1 stop30h 39m

$1,047

Washington, D.C.Hilo

IAD - ITO

IADITO

Washington, D.C. Dulles Intl

Tue 12/23

9:58 pm-12:13 pm

3 stops43h 15m

$726

Washington, D.C.Hilo

IAD - ITO

IADITO

Washington, D.C. Dulles Intl

Sun 12/28

9:58 pm-9:15 pm

3 stops52h 17m

$773

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Showing 1-10 of 15 results
1
2

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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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 Expedia the most. Expedia 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.
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 Washington, D.C. Dulles Intl Airport to Hilo

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

Currently, April is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Hilo (average of $211). Flying from Washington, D.C. Dulles Intl Airport to Hilo in December is currently the most expensive (average of $491). 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.

Reviews of airlines servicing Hilo

Get insights into the airlines that provide service to Hilo. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Hilo. Reviews last updated December 12, 2025.
Read reviews from past customers who have flown Alaska Airlines from Washington, D.C. Dulles Intl Airport to Hilo. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,432 reviews

Entertainment

7.0

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Alaska Airlines
8.0
Very good
11,432 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Entertainment

7.0

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

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.

  • What airport do you fly into for flights to Hilo from Washington, D.C. Dulles Intl?

    For a flight from Washington, D.C. Dulles Intl to Hilo, you will be flying into Hilo Intl. Hilo Intl (ITO) is just 3.0 mi from the center of the city. Hilo Intl is the only Hilo airport and it handles 0 inbound flights from Washington, D.C. Dulles Intl per day. 1 airline has flights to Hilo Intl from Washington, D.C. Dulles Intl on a regular basis.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Hilo?

    Alaska Airlines can get you from Washington, D.C. Dulles Intl Airport to Hilo in just under 28h 09m. Your travel time can differ by up to . The distance between Washington, D.C. Dulles Intl Airport and Hilo is about 4717 mi.

  • What is the cheapest airline to fly from Washington, D.C. Dulles Intl Airport to Hilo round-trip?

    Flying on Alaska Airlines is currently your cheapest option to Hilo, with prices starting at $591.

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Hilo (average of $211). Flying from Washington, D.C. Dulles Intl Airport to Hilo in December is currently the most expensive (average of $491). 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

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Top airline flying from Dulles Intl to Hilo

Discover the top airline that operate flights from Dulles Intl to Hilo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$591Average$815FlexibilityNo cancel feeOn-time75%

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