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$503+ Cheap flights from Reagan-National (DCA) 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — ITO
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Reagan-National to Hilo

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) 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

$638
(Alaska Airlines)

One-way from

$503
(Alaska Airlines)

Popular in

March

Cheapest in

November

Average price

$907
From Washington, D.C. Reagan-National to Hilo Intl
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One-way flight from Washington, D.C. Reagan-National to Hilo Intl
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Highest demand for flights based on searches. 12% potential increase in price ($128 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($32 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 Reagan-National to Hilo

Cheapest flights from Reagan-National to Hilo
Explore the most affordable flight options available from Reagan-National 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 9/9. 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 10/308:00 amDCA - ITO
2 stops20h 26mAlaska Airlines
Mon 11/36:01 pmITO - DCA
2 stops17h 52mAlaska Airlines
Deal found 9/9$638
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Mon 10/206:00 amDCA - ITO
2 stops32h 06mUnited Airlines
Sat 10/256:00 amITO - DCA
2 stops21h 53mUnited Airlines
Deal found 9/11$926
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 12/235:00 pmDCA - ITO
2 stops29h 50mAlaska Airlines
Thu 1/14:40 pmITO - DCA
2 stops22h 59mAlaska Airlines
Deal found 9/9$1,639
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/258:00 amDCA - ITO
2 stops16h 14mAlaska Airlines
Thu 1/17:44 pmITO - DCA
2 stops17h 13mAlaska Airlines
Deal found 9/10$1,838
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.
Tue 12/237:00 amDCA - ITO
2 stops39h 50mUnited Airlines
Thu 1/17:44 pmITO - DCA
3 stops34h 46mUnited Airlines
Deal found 9/9$6,870

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National 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. Reagan-National Airport to Hilo that are best for you.

Fly from

Reagan-National

Fly to

Hilo

Route

Depart

Return

Price

Washington, D.C.Hilo

DCA - ITO

DCAITO

Washington, D.C. Reagan-National

Thu 10/30

8:00 am-10:26 pm

2 stops20h 26m

Hilo Intl

Mon 11/3

6:01 pm-4:53 pm

2 stops17h 52m

$638

Washington, D.C.Hilo

DCA - ITO

DCAITO

Washington, D.C. Reagan-National

Sat 1/31

8:00 am-10:14 pm

2 stops19h 14m

Hilo Intl

Sat 2/7

7:50 pm-9:55 pm

2 stops21h 05m

$693

Washington, D.C.Hilo

DCA - ITO

DCAITO

Washington, D.C. Reagan-National

Tue 12/23

5:00 pm-5:50 pm

2 stops29h 50m

Hilo Intl

Thu 1/1

4:40 pm-8:39 pm

2 stops22h 59m

$1,639

Washington, D.C.Hilo

DCA - ITO

DCAITO

Washington, D.C. Reagan-National

Thu 12/25

8:00 am-7:14 pm

2 stops16h 14m

Hilo Intl

Thu 1/1

7:44 pm-5:57 pm

2 stops17h 13m

$1,838

Washington, D.C.Hilo

DCA - ITO

DCAITO

Washington, D.C. Reagan-National

Mon 2/2

8:59 am-8:18 pm

2 stops16h 19m

Hilo Intl

Thu 2/12

3:52 pm-4:04 pm

2 stops19h 12m

$2,683

Washington, D.C.Hilo

DCA - ITO

DCAITO

Washington, D.C. Reagan-National

Mon 2/2

8:59 am-10:14 pm

2 stops18h 15m

Hilo Intl

Mon 2/9

7:50 pm-4:04 pm

2 stops15h 14m

$2,683

Washington, D.C.Hilo

DCA - ITO

DCAITO

Washington, D.C. Reagan-National

Wed 2/4

8:59 am-7:18 pm

2 stops15h 19m

Hilo Intl

Tue 2/10

5:30 pm-4:04 pm

2 stops17h 34m

$2,683

Washington, D.C.Hilo

DCA - ITO

DCAITO

Washington, D.C. Reagan-National

Mon 2/2

8:59 am-6:18 pm

2 stops14h 19m

Hilo Intl

Tue 2/10

3:50 pm-4:04 pm

2 stops19h 14m

$2,683

Washington, D.C.Hilo

DCA - ITO

DCAITO

Washington, D.C. Reagan-National

Wed 2/4

8:59 am-7:18 pm

2 stops15h 19m

Hilo Intl

Mon 2/9

6:49 pm-4:04 pm

2 stops16h 15m

$2,683

Washington, D.C.Hilo

DCA - ITO

DCAITO

Washington, D.C. Reagan-National

Wed 2/4

8:59 am-7:18 pm

2 stops15h 19m

Hilo Intl

Wed 2/11

4:40 pm-5:32 pm

2 stops19h 52m

$2,690

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 14 results
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Best time to book a flight from Reagan-National to Hilo

Have a flexible travel schedule? Discover the best time to fly to Hilo from Reagan-National 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. Reagan-National Airport to Hilo

What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Hilo?

Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Hilo (average of $330). Flying from Washington, D.C. Reagan-National 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.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National 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. Reagan-National?

    For a flight from Washington, D.C. Reagan-National 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. Reagan-National per day. 0 airlines have flights to Hilo Intl from Washington, D.C. Reagan-National on a regular basis.

  • How long is the flight from Washington, D.C. Reagan-National Airport to Hilo?

    Departing from Washington, D.C. Reagan-National Airport to Hilo will take you 20h 26m. There are 4740 mi between Washington, D.C. Reagan-National Airport and Hilo.

  • Can I find deals for flights from Reagan-National to Hilo that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Hilo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Hilo?

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

  • Can I find deals for business class flights from Reagan-National to Hilo?

    Yes. Cheapflights offers flight deals from Reagan-National 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. Reagan-National Airport to Hilo?

    Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Hilo (average of $330). Flying from Washington, D.C. Reagan-National 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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