IAD - KOA

$229 Find Cheap Flights from Washington Dulles Airport to Kailua-Kona

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Kailua-Kona departing on 12/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Kailua-Kona

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Kailua-Kona, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Kailua-Kona, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Dulles Intl to Kailua-Kona (IAD-KOA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Kailua-Kona that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Kailua-Kona

Tue, Oct 14 - Tue, Oct 21
United Airlines Logo
3:00 pm - 8:45 pmIAD-KOA
11h 45m1 stop
United Airlines Logo
1:05 pm - 7:09 amKOA-IAD
12h 04m1 stop
$453United Airlines
Find Deal
Wed, Oct 29 - Wed, Nov 5
Alaska Airlines Logo
5:40 pm - 1:43 pmIAD-KOA
26h 03m1 stop
Alaska Airlines Logo
12:09 pm - 5:13 pmKOA-IAD
24h 04m1 stop
$456Alaska Airlines
Find Deal
Thu, Jan 29 - Wed, Feb 11
American Airlines Logo
6:30 am - 3:35 pmIAD-KOA
14h 05m1 stop
American Airlines Logo
6:30 pm - 10:45 amKOA-IAD
11h 15m1 stop
$457American Airlines
Find Deal
Wed, Oct 22 - Mon, Oct 27
Delta Logo
7:35 am - 5:30 pmIAD-KOA
15h 55m1 stop
Delta Logo
8:30 pm - 4:57 pmKOA-IAD
14h 27m2 stops
$462Delta
Find Deal
Thu, Jan 29 - Wed, Feb 11
American Airlines Logo
6:30 am - 7:27 pmIAD-KOA
17h 57m2 stops
American Airlines Logo
6:30 pm - 10:45 amKOA-IAD
11h 15m1 stop
$463American Airlines
Find Deal
Mon, Oct 20 - Sun, Nov 2
Alaska Airlines Logo
5:42 pm - 12:29 pmIAD-KOA
24h 47m1 stop
Alaska Airlines Logo
7:47 pm - 5:13 pmKOA-IAD
16h 26m2 stops
$468Alaska Airlines
Find Deal
Sun, Nov 9 - Sat, Nov 15
United Airlines Logo
8:25 am - 4:18 pmIAD-KOA
12h 53m1 stop
United Airlines Logo
2:20 pm - 6:48 amKOA-IAD
11h 28m1 stop
$469United Airlines
Find Deal
Sun, Jan 25 - Fri, Feb 6
Alaska Airlines Logo
5:51 pm - 4:26 pmIAD-KOA
27h 35m2 stops
Alaska Airlines Logo
7:13 pm - 5:55 pmKOA-IAD
17h 42m2 stops
$473Alaska Airlines
Find Deal
Sun, Nov 9 - Sat, Nov 15
United Airlines Logo
6:30 am - 4:18 pmIAD-KOA
14h 48m2 stops
United Airlines Logo
2:20 pm - 7:21 amKOA-IAD
12h 01m1 stop
$474United Airlines
Find Deal
Mon, Jan 12 - Fri, Jan 16
Delta Logo
7:00 am - 6:55 pmIAD-KOA
16h 55m1 stop
Delta Logo
9:45 pm - 6:42 pmKOA-IAD
15h 57m2 stops
$498Delta
Find Deal

Everything you should know

Top airlines
United Airlines
Cheapest • from $453 (round-trip)
Alaska Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
September
Cheapest • 26% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$453
Overall average: $569
United Airlines
Tue 10/14Tue 10/21
IAD - KOA • 1 stop
Cheapest one-way
$229
Typical prices: $428-885
Delta
Tue 12/9
IAD - KOA • 1 stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Kailua-Kona!
Booking Insights

KAYAK's insights & trends for Dulles Intl to Kailua-Kona flights

Get data-powered insights and trends into flights from Dulles Intl to Kailua-Kona to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Washington Dulles Airport to Kailua-Kona?

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to Kailua-Kona clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Kailua-Kona on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Friday is the most expensive day to fly from Washington Dulles Airport to Kailua-Kona. For your return ticket, we recommend flying on a Friday and avoiding Thursdays for the best deals.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Kailua-Kona?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Kailua-Kona, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Kailua-Kona is September, where tickets cost $561 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,624 and $858 respectively.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Kailua-Kona?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Kailua-Kona, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to Kailua-Kona, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$229
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly with an average 12% increase in price.
Flight from Washington Dulles Airport to Kailua-Kona

When to book flights from Dulles Intl to Kailua-Kona

Are your dates flexible? Find out the best times to travel from Dulles Intl to Kailua-Kona based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to Kailua-Kona flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Kailua-Kona?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Kailua-Kona was $229 for a one-way ticket and $453 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Kailua-Kona?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Kailua-Kona?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington Dulles Airport to Kailua-Kona?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Washington Dulles Airport and Kailua-Kona, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Washington, D.C. to Kailua-Kona, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Kailua-Kona are Alaska Airlines and Delta. With an average price for the route of $608 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $463 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Kailua-Kona?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Kailua-Kona.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Kailua-Kona?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Kailua-Kona from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Kailua-Kona?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Kailua-Kona with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and KOA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Kailua-Kona?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Kailua-Kona from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Dulles Intl to Kailua-Kona

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Kailua-Kona. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to Kailua-Kona? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 10000 reviews
7.8Comfort
7.1Food
8.1Boarding
8.5Crew
7.0Entertainment
Airline reviews

Awesome. Great flight. Super nice people and I like the extra space

10.0 ExcellentAnonymous, Sep 2025DCA - SAN
Read more Alaska Airlines reviews

Awesome. Great flight. Super nice people and I like the extra space

On time, WiFi worked, reasonable legroom, helpful staff. Unfortunately there was no water for handwashing in the rear lavatory.

Had to sit and wait to get off the plane for closeto a hour. My son also flying to a different destination that day also had like a 2.5 hr delay

My husband unfortunately had a very large lady next to him who did not fit in the seat and had to have the armrest up so she was partially in his seat and she also had horrible BO

Tickets we booked together in January became two different connecting flights. VERY PISSED a about this and a terrible start to our bucket list vacation

The Boeing 737 plane is old with narrow seats and tiny lavatories. The flight was delayed for over 2 hours. The flight attendants were discourteous.

Flight was delayed which led to missed connection, but rebooked on a more direct flight at the last minute and arrived in Juneau on time with all our luggage. Little stressful and our family seating got split, but it all worked out in the end.

Only offered water, no snacks provided, and it was cold on the plane, everyone was wearing sweatshirt or jacket in June. I asked for blanket, but crew said they didnt have anything and would turn the heat up, that didn't happen, so for 6 hours I remained cold.

One of the stewardess, Tre, went above and beyond to ensure my comfort!

they didn't fix a plane and we were delayed travelling an extra 12 hours.

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

The flight attendants in SLC were rude. I arrived 40 minutes early to gate. Ticket said I needed check in for seat assignments and tried check in and attendants said they weren’t doing it. And proceeded to never call me to give me a ticket so when time to board I received the very last seat. Please relay to employees to do their job better..,

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

Staff was rude. Didn’t give water for 2 hours. Worst service

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

We were given vouchers we couldn’t use with a 5.5 hour delay

I fly UAL 7-8 times per year. This flight was not up to snuff because it boarded very late "due to unexpected delays in restocking the plane" and yet Flight Aware showed the plane had landed some 10 hours earlier--so I think they could have planned accordingly. The FA's were nice but harried. The video system had to be rebooted 3-4 times. The food service was rather abrupt; they forgot my row and when I asked for my meal, they brought it with some impatience. Overall, the flight was fine, but the little details made it feel somewhat mundane and hurried.

Everything you need to know for your flight from Dulles Intl to Kailua-Kona

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