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Hilo

$305+ Cheap flights from Dulles Intl (IAD) to Hilo (ITO)

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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ITO
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap 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 11, 2025.

Round-trip from

$584
(Alaska Airlines)

One-way from

$305
(Kiwi.com)

Popular in

February

Cheapest in

November

Average price

$750
From Washington, D.C. Dulles Intl to Hilo Intl
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One-way flight from Washington, D.C. Dulles Intl to Hilo Intl
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Highest demand for flights based on searches. 15% potential increase in price ($163 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($23 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 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 September 11, 2025.

This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/307:43 amIAD - ITO
2 stops20h 43mAlaska Airlines
Mon 11/37:43 pmITO - IAD
2 stops15h 57mAlaska Airlines
Deal found 9/8$552
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.
Wed 10/228:53 amIAD - ITO
2 stops19h 26mAlaska Airlines
Mon 10/276:26 pmITO - IAD
2 stops16h 14mAlaska Airlines
Deal found 9/9$631
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.
Sat 11/17:43 amIAD - ITO
2 stops20h 43mAlaska Airlines
Sat 11/89:00 pmITO - IAD
2 stops28h 23mAlaska Airlines
Deal found 9/9$660
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.
Sat 11/157:43 amIAD - ITO
2 stops19h 39mAlaska Airlines
Tue 11/188:35 amITO - IAD
2 stops27h 38mAlaska Airlines
Deal found 9/9$719
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 11/37:43 amIAD - ITO
2 stops19h 39mAlaska Airlines
Tue 11/117:43 pmITO - IAD
2 stops15h 57mAlaska Airlines
Deal found 9/9$740
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.
Wed 9/249:00 amIAD - ITO
2 stops14h 39mAlaska Airlines
Sun 9/287:00 pmITO - IAD
2 stops15h 52mAlaska Airlines
Deal found 9/9$794
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.
Thu 10/96:25 amIAD - ITO
2 stops17h 19mAlaska Airlines
Mon 10/137:49 pmITO - IAD
2 stops22h 34mAlaska Airlines
Deal found 9/9$885
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.
Wed 11/266:17 pmIAD - ITO
2 stops31h 11mAlaska Airlines
Mon 12/110:55 amITO - IAD
2 stops25h 35mAlaska Airlines
Deal found 9/9$898
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.
Sat 11/159:05 amIAD - ITO
1 stop14h 56mUnited Airlines
Tue 11/187:43 pmITO - IAD
2 stops20h 42mUnited Airlines
Deal found 9/9$908
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/117:35 amIAD - ITO
2 stops20h 42mDelta
Thu 9/1810:59 amITO - IAD
2 stops16h 00mDelta
Deal found 9/9$946

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 September 11, 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

Thu 10/30

7:43 am-10:26 pm

2 stops20h 43m

Hilo Intl

Mon 11/3

7:43 pm-4:40 pm

2 stops15h 57m

$552

Washington, D.C.Hilo

IAD - ITO

IADITO

Washington, D.C. Dulles Intl

Wed 10/22

8:53 am-10:19 pm

2 stops19h 26m

Hilo Intl

Mon 10/27

6:26 pm-4:40 pm

2 stops16h 14m

$631

Washington, D.C.Hilo

IAD - ITO

IADITO

Washington, D.C. Dulles Intl

Sat 11/1

7:43 am-10:26 pm

2 stops20h 43m

Hilo Intl

Sat 11/8

9:00 pm-6:23 am

2 stops28h 23m

$660

Washington, D.C.Hilo

IAD - ITO

IADITO

Washington, D.C. Dulles Intl

Sat 11/15

7:43 am-10:22 pm

2 stops19h 39m

Hilo Intl

Tue 11/18

8:35 am-5:13 pm

2 stops27h 38m

$719

Washington, D.C.Hilo

IAD - ITO

IADITO

Washington, D.C. Dulles Intl

Mon 11/3

7:43 am-10:22 pm

2 stops19h 39m

Hilo Intl

Tue 11/11

7:43 pm-4:40 pm

2 stops15h 57m

$740

Washington, D.C.Hilo

IAD - ITO

IADITO

Washington, D.C. Dulles Intl

Wed 9/24

9:00 am-5:39 pm

2 stops14h 39m

Hilo Intl

Sun 9/28

7:00 pm-4:52 pm

2 stops15h 52m

$794

Washington, D.C.Hilo

IAD - ITO

IADITO

Washington, D.C. Dulles Intl

Thu 10/9

6:25 am-5:44 pm

2 stops17h 19m

Hilo Intl

Mon 10/13

7:49 pm-12:23 am

2 stops22h 34m

$885

Washington, D.C.Hilo

IAD - ITO

IADITO

Washington, D.C. Dulles Intl

Wed 11/26

6:17 pm-8:28 pm

2 stops31h 11m

Hilo Intl

Mon 12/1

10:55 am-5:30 pm

2 stops25h 35m

$898

Washington, D.C.Hilo

IAD - ITO

IADITO

Washington, D.C. Dulles Intl

Sun 9/14

7:00 am-5:39 pm

2 stops16h 39m

Hilo Intl

Thu 10/2

7:00 pm-5:09 pm

2 stops16h 09m

$949

Washington, D.C.Hilo

IAD - ITO

IADITO

Washington, D.C. Dulles Intl

Wed 10/22

6:05 am-5:44 pm

2 stops17h 39m

Hilo Intl

Sun 10/26

12:36 pm-11:57 am

2 stops17h 21m

$951

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 19 results
1
2

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, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Hilo (average of $330). Flying from Washington, D.C. Dulles Intl Airport to Hilo in December is currently the most expensive (average of $726). 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 September 11, 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
10,000 reviews

Entertainment

7.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

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 20h 43m. 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 $641. This flight start at 30% lower than the current average price 3 months from now.

  • 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, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Hilo (average of $330). Flying from Washington, D.C. Dulles Intl Airport to Hilo in December is currently the most expensive (average of $726). 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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Alternative routes for Dulles Intl to Hilo

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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$641Average$833FlexibilityNo cancel feeOn-time75%

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