$217 Cheap Flights from Kailua-Kona (KOA) to Washington (IAD)

View $217 flight on Wed, Dec 17, 2025Opens in a new window

Popular airlines from Kona Intl. Airport (KOA) to Washington Dulles Intl. Airport (IAD)

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Cheap Flights from Kailua-Kona to Washington (KOA-IAD)

Prices were available within the past 7 days and start at $217 for one-way flights and $449 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Aug 20 - Mon, Sep 1
KOA
Kona Coast
IAD
Washington
$449 Roundtrip, found 1 hour ago
$449
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Aug 20 from Kona Coast to Washington, returning Mon, Sep 1, priced at $449 found 1 hour ago
Alaska Airlines
Fri, Oct 31 - Sun, Nov 16
KOA
Kona Coast
IAD
Washington
$454 Roundtrip, found 1 day ago
$454
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Fri, Oct 31 from Kona Coast to Washington, returning Sun, Nov 16, priced at $454 found 1 day ago
Hawaiian Airlines
Mon, Oct 6 - Mon, Oct 20
KOA
Kona Coast
IAD
Washington
$454 Roundtrip, found 1 day ago
$454
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Mon, Oct 6 from Kona Coast to Washington, returning Mon, Oct 20, priced at $454 found 1 day ago
American Airlines
Tue, Sep 30 - Tue, Oct 7
KOA
Kona Coast
IAD
Washington
$458 Roundtrip, found 1 day ago
$458
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Sep 30 from Kona Coast to Washington, returning Tue, Oct 7, priced at $458 found 1 day ago
Hawaiian Airlines
Thu, Oct 23 - Sun, Nov 9
KOA
Kona Coast
IAD
Washington
$460 Roundtrip, found 1 day ago
$460
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Thu, Oct 23 from Kona Coast to Washington, returning Sun, Nov 9, priced at $460 found 1 day ago
United
Tue, Sep 2 - Wed, Sep 3
KOA
Kona Coast
IAD
Washington
$467 Roundtrip, found 12 hours ago
$467
Roundtrip
found 12 hours ago
Select United flight, departing Tue, Sep 2 from Kona Coast to Washington, returning Wed, Sep 3, priced at $467 found 12 hours ago
Alaska Airlines
Fri, Oct 24 - Sun, Nov 9
KOA
Kona Coast
IAD
Washington
$469 Roundtrip, found 1 day ago
$469
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Fri, Oct 24 from Kona Coast to Washington, returning Sun, Nov 9, priced at $469 found 1 day ago
Alaska Airlines
Fri, Oct 24 - Sun, Nov 9
KOA
Kona Coast
IAD
Washington
$471 Roundtrip, found 1 day ago
$471
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Fri, Oct 24 from Kona Coast to Washington, returning Sun, Nov 9, priced at $471 found 1 day ago
United
Wed, Aug 6 - Mon, Aug 18
KOA
Kona Coast
IAD
Washington
$481 Roundtrip, found 1 hour ago
$481
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Aug 6 from Kona Coast to Washington, returning Mon, Aug 18, priced at $481 found 1 hour ago
Southwest Airlines
Wed, Aug 20 - Mon, Sep 1
KOA
Kona Coast
IAD
Washington
$490 Roundtrip, found 1 hour ago
$490
Roundtrip
found 1 hour ago
Select Southwest Airlines flight, departing Wed, Aug 20 from Kona Coast to Washington, returning Mon, Sep 1, priced at $490 found 1 hour ago
Flights from Kailua-Kona (KOA) to Washington (IAD)
Origin airport
Kona Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$449
Distance
4772 mi

Kailua-Kona to Washington Flights

The cheapest times to fly from Kailua-Kona 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 Kailua-Kona to Washington are during the month of August. You can find some of the cheapest flights from Kailua-Kona to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Kailua-Kona to Washington

Sunday is one of the best days to book for cheap flights from Kailua-Kona 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 Kailua-Kona 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 Kailua-Kona to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $217 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 Kailua-Kona 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 Kailua-Kona 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.

 

Frequently asked questions

How much does a flight from Kona Intl. Airport (KOA) to Washington Dulles Intl. Airport (IAD) cost?
Discover the latest flight deals from KOA to IAD by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from KOA to IAD?
The cheapest flights from KOA to IAD are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from KOA to IAD?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from KOA to IAD. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Kona Intl. Airport (KOA) to Washington Dulles Intl. Airport (IAD)?
There are no daily nonstop flights from Kona Intl. Airport (KOA) to Washington Dulles Intl. Airport (IAD). But you can book flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from KOA to IAD?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary 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 Kona Intl. Airport (KOA) to Washington Dulles Intl. Airport (IAD)?
To avoid potential delays on the Kona Intl. Airport (KOA) to Washington Dulles Intl. Airport (IAD) route, aim to travel before 3 PM. Later flights have a 22% higher chance of being canceled.**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 Kona Intl. Airport (KOA) to Washington Dulles Intl. Airport (IAD) last-minute?
Holding off until just before your departure to book a ticket from KOA to IAD generally means paying more. While you may come across some last-minute deals, they aren't always guaranteed. Be flexible with your itinerary for a better chance of landing a bargain.
Is it cheaper to book a KOA to IAD flight and hotel package?
Compared with arranging flights and hotels separately, booking a KOA to IAD flight and hotel package with Expedia could lead to significant savings. Better still, managing everything in one place will take the hassle out of planning your trip. Just secure your flights and choose from our wide range of hotels, then customize your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Kona Intl. Airport (KOA) to Washington Dulles Intl. Airport (IAD)?
If you booked your KOA to IAD flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for further details.

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*Available to One Key members.