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$367+ 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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — ITO
Dec 19 — Dec 261
Fri 12/19
Fri 12/26
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 November 19, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$503
(Alaska Airlines)

One-way from

$367
(Alaska Airlines)

Popular in

March

Cheapest in

November

Average price

$627
Provider with most accurate pricing for Washington, D.C. Reagan-National-Hilo Intl flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Hilo Intl flights.
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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. 9% potential increase in price ($90 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 19, 2025.

This United Airlines deal was found by Cheapflights users on 11/17. 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 12/156:30 amDCA - ITO
2 stops18h 30mUnited Airlines
Wed 12/244:40 pmITO - DCA
2 stops17h 19mUnited Airlines
Deal found 11/17$1,004
This Delta deal was found by Cheapflights users on 11/17. 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.
Tue 12/166:10 amDCA - ITO
2 stops20h 06mDelta
Thu 12/251:44 pmITO - DCA
2 stops14h 29mDelta
Deal found 11/17$1,281
This Alaska Airlines deal was found by Cheapflights users on 11/18. 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 12/38:00 amDCA - ITO
2 stops16h 05mAlaska Airlines
Sun 12/79:00 pmITO - DCA
2 stops15h 59mAlaska Airlines
Deal found 11/18$1,330
This Delta deal was found by Cheapflights users on 11/17. 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.
Sun 12/146:00 amDCA - ITO
2 stops16h 39mDelta
Tue 12/231:44 pmITO - DCA
2 stops16h 53mDelta
Deal found 11/17$1,444
This Expedia deal was found by Cheapflights users on 11/18. 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.
Thu 12/188:59 amDCA - ITO
2 stops16h 00mAlaska Airlines
Mon 12/226:44 pmITO - DCA
2 stops21h 35mAlaska Airlines
Deal found 11/18$1,589
This United Airlines deal was found by Cheapflights users on 11/18. 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 12/96:00 amDCA - ITO
2 stops18h 05mUnited Airlines
Sat 12/207:44 pmITO - DCA
2 stops16h 13mUnited Airlines
Deal found 11/18$3,400

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 November 19, 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

Sat 1/24

8:00 am-10:34 pm

2 stops19h 34m

Hilo Intl

Wed 1/28

6:44 pm-4:09 pm

2 stops16h 25m

$503

Washington, D.C.Hilo

DCA - ITO

DCAITO

Washington, D.C. Reagan-National

Mon 1/12

8:59 am-9:24 pm

2 stops17h 25m

Hilo Intl

Thu 1/15

5:59 pm-4:01 pm

2 stops17h 02m

$508

Washington, D.C.Hilo

DCA - ITO

DCAITO

Washington, D.C. Reagan-National

Wed 2/18

8:59 am-9:24 pm

2 stops17h 25m

Hilo Intl

Wed 2/25

6:44 pm-5:59 pm

2 stops18h 15m

$508

Washington, D.C.Hilo

DCA - ITO

DCAITO

Washington, D.C. Reagan-National

Wed 2/18

8:59 am-9:24 pm

2 stops17h 25m

Hilo Intl

Thu 2/26

8:30 pm-5:59 pm

2 stops16h 29m

$508

Washington, D.C.Hilo

DCA - ITO

DCAITO

Washington, D.C. Reagan-National

Sun 2/22

8:59 am-10:35 pm

2 stops18h 36m

Hilo Intl

Tue 2/24

7:41 pm-5:59 pm

2 stops17h 18m

$527

Washington, D.C.Hilo

DCA - ITO

DCAITO

Washington, D.C. Reagan-National

Tue 3/10

8:59 am-9:24 pm

2 stops18h 25m

Hilo Intl

Wed 3/11

8:30 pm-5:59 pm

2 stops15h 29m

$527

Washington, D.C.Hilo

DCA - ITO

DCAITO

Washington, D.C. Reagan-National

Wed 2/18

8:59 am-9:24 pm

2 stops17h 25m

Hilo Intl

Tue 2/24

8:30 pm-5:59 pm

2 stops16h 29m

$527

Washington, D.C.Hilo

DCA - ITO

DCAITO

Washington, D.C. Reagan-National

Sun 2/22

8:59 am-10:35 pm

2 stops18h 36m

Hilo Intl

Thu 2/26

7:41 pm-5:59 pm

2 stops17h 18m

$527

Washington, D.C.Hilo

DCA - ITO

DCAITO

Washington, D.C. Reagan-National

Tue 2/17

8:59 am-9:24 pm

2 stops17h 25m

Hilo Intl

Thu 2/26

8:30 pm-5:59 pm

2 stops16h 29m

$527

Washington, D.C.Hilo

DCA - ITO

DCAITO

Washington, D.C. Reagan-National

Wed 3/18

8:59 am-6:18 pm

2 stops15h 19m

$367

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/16

Showing 1-10 of 15 results
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  • Most accurate provider: When it comes to deals on Washington, D.C. Reagan-National 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. Reagan-National Airport-Hilo flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Hilo flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National 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. Reagan-National 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 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, February is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Hilo (average of $211). Flying from Washington, D.C. Reagan-National Airport to Hilo in July is currently the most expensive (average of $819). 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 19h 34m. 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, February is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Hilo (average of $211). Flying from Washington, D.C. Reagan-National Airport to Hilo in July is currently the most expensive (average of $819). 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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