$236 Cheap Flights from Hilo (ITO) to Washington (IAD)

View $236 flight on Mon, Dec 8, 2025Opens in a new window

Popular airlines from Hilo Intl. Airport (ITO) to Washington Dulles Intl. Airport (IAD)

Cheap Flights from Hilo to Washington (ITO-IAD)

Prices were available within the past 7 days and start at $236 for one-way flights and $498 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Thu, Dec 4 - Tue, Dec 9
ITO
Hawaii Island
IAD
Washington
$498 Roundtrip, found 4 days ago
$498
Roundtrip
found 4 days ago
Select Hawaiian Airlines flight, departing Thu, Dec 4 from Hawaii Island to Washington, returning Tue, Dec 9, priced at $498 found 4 days ago
Hawaiian Airlines
Mon, Nov 3 - Mon, Nov 17
ITO
Hawaii Island
IAD
Washington
$504 Roundtrip, found 4 days ago
$504
Roundtrip
found 4 days ago
Select Hawaiian Airlines flight, departing Mon, Nov 3 from Hawaii Island to Washington, returning Mon, Nov 17, priced at $504 found 4 days ago
Hawaiian Airlines
Mon, Nov 10 - Mon, Nov 17
ITO
Hawaii Island
IAD
Washington
$514 Roundtrip, found 6 days ago
$514
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Mon, Nov 10 from Hawaii Island to Washington, returning Mon, Nov 17, priced at $514 found 6 days ago
Alaska Airlines
Thu, Nov 13 - Wed, Nov 19
ITO
Hawaii Island
IAD
Washington
$521 Roundtrip, found 5 days ago
$521
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Thu, Nov 13 from Hawaii Island to Washington, returning Wed, Nov 19, priced at $521 found 5 days ago
Alaska Airlines
Tue, Nov 4 - Mon, Nov 17
ITO
Hawaii Island
IAD
Washington
$528 Roundtrip, found 6 days ago
$528
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Tue, Nov 4 from Hawaii Island to Washington, returning Mon, Nov 17, priced at $528 found 6 days ago
Alaska Airlines
Fri, Dec 5 - Tue, Dec 9
ITO
Hawaii Island
IAD
Washington
$547 Roundtrip, found 6 days ago
$547
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Fri, Dec 5 from Hawaii Island to Washington, returning Tue, Dec 9, priced at $547 found 6 days ago
Alaska Airlines
Mon, Nov 3 - Sun, Nov 16
ITO
Hawaii Island
IAD
Washington
$558 Roundtrip, found 4 days ago
$558
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Mon, Nov 3 from Hawaii Island to Washington, returning Sun, Nov 16, priced at $558 found 4 days ago
Alaska Airlines
Fri, Dec 5 - Tue, Dec 9
ITO
Hawaii Island
IAD
Washington
$562 Roundtrip, found 6 days ago
$562
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Fri, Dec 5 from Hawaii Island to Washington, returning Tue, Dec 9, priced at $562 found 6 days ago
United
Mon, Jan 26 - Mon, Feb 16
ITO
Hawaii Island
IAD
Washington
$764 Roundtrip, found 4 days ago
$764
Roundtrip
found 4 days ago
Select United flight, departing Mon, Jan 26 from Hawaii Island to Washington, returning Mon, Feb 16, priced at $764 found 4 days ago
Delta
Thu, Jan 15 - Tue, Jan 20
ITO
Hawaii Island
IAD
Washington
$901 Roundtrip, found 1 day ago
$901
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Jan 15 from Hawaii Island to Washington, returning Tue, Jan 20, priced at $901 found 1 day ago

Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Ronald Reagan Washington National DCA. Closest option available. Average driving time to city center is 8 minutes. Flights from $958
DCA
Ronald Reagan Washington National
Closest
Average driving time to city center8 min
Flights from $958

Frequently asked questions

How much does a flight from Hilo Intl. Airport (ITO) to Washington Dulles Intl. Airport (IAD) cost?
Secure a cheap one-way flight from $236 or cheap return flight from $498 from Hilo Intl. Airport (ITO) to Washington Dulles Intl. Airport (IAD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Hilo Intl. Airport (ITO) to Washington Dulles Intl. Airport (IAD)?
The cheapest month to fly from ITO to IAD is December, when there's less demand. Off-peak months are often when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Hilo Intl. Airport (ITO) to Washington Dulles Intl. Airport (IAD)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest ITO to IAD flight.
How many flights per day from Hilo Intl. Airport (ITO) to Washington Dulles Intl. Airport (IAD)?
There aren't any daily nonstop flights available from Hilo Intl. Airport (ITO) to Washington Dulles Intl. Airport (IAD). But you can choose flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be on your way before you know it.
What day of the week has the most flights from ITO to IAD?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Hilo Intl. Airport (ITO) to Washington Dulles Intl. Airport (IAD)?
To reach Washington Dulles Intl. Airport (IAD) on schedule, select a flight that takes off from Hilo Intl. Airport (ITO) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Hilo Intl. Airport (ITO) to Washington Dulles Intl. Airport (IAD) last-minute?
Booking your ticket from ITO to IAD just before your journey is usually more expensive. However, if there's some wiggle room with your itinerary, you could land a cheap last-minute fare.
Is it cheaper to book an ITO to IAD flight and hotel package?
Compared with arranging flights and hotels separately, booking an ITO to IAD flight and hotel package with Expedia could result in significant savings. Better still, having everything in one place will take the stress out of planning your trip. Simply pick your flights and select from our extensive range of hotels, then customize your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Hilo Intl. Airport (ITO) to Washington Dulles Intl. Airport (IAD)?
Typically, it's possible to reschedule or cancel your ITO to IAD flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Travel information

Origin airport
Hilo Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Alaska Airlines, Delta, United
Roundtrip price
$497
Distance
4720 mi

Book with confidence

Book with confidence

Hilo to Washington Flights

The cheapest times to fly from Hilo to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Hilo to Washington are during the month of December. You can find some of the cheapest flights from Hilo to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Hilo to Washington

Sunday is one of the best days to book for cheap flights from Hilo to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Hilo to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Hilo to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $236 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Hilo to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Hilo to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Hilo to Washington Flights

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*Available to One Key members.