$253 Find Cheap Flights from Washington Dulles Airport to Kaua'i

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 Kaua'i departing on 1/31. 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, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Kaua'i

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

Book Cheap Dulles Intl to Kaua'i Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Kaua'i 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 Kaua'i

Tue, Feb 17 - Tue, Feb 24
Delta Logo
7:30 am - 7:55 pm
IAD
-
LIH
17h 25m1 stop
Delta Logo
10:55 pm - 7:09 pm
LIH
-
IAD
15h 14m2 stops
$432Delta
Tue, Feb 17 - Tue, Feb 24
Delta Logo
7:00 am - 7:55 pm
IAD
-
LIH
17h 55m2 stops
Delta Logo
10:55 pm - 7:09 pm
LIH
-
IAD
15h 14m2 stops
$436Delta
Mon, Mar 2 - Tue, Mar 17
Alaska Airlines Logo
6:27 pm - 10:18 pm
IAD
-
LIH
32h 51m1 stop
Alaska Airlines Logo
10:19 pm - 5:55 pm
LIH
-
IAD
13h 36m1 stop
$443Alaska Airlines
Sun, Feb 1 - Tue, Feb 10
Multiple Airlines Logo
5:26 pm - 1:45 pm
IAD
-
LIH
25h 19m1 stop
Multiple Airlines Logo
6:33 pm - 5:04 pm
LIH
-
IAD
17h 31m2 stops
$450Multiple Airlines
Mon, Mar 2 - Tue, Mar 17
Hawaiian Airlines Logo
7:05 am - 3:50 pm
IAD
-
LIH
13h 45m1 stop
Hawaiian Airlines Logo
10:19 pm - 5:55 pm
LIH
-
IAD
13h 36m1 stop
$454Hawaiian Airlines
Wed, Jan 14 - Wed, Jan 21
American Airlines Logo
6:00 am - 4:37 pm
IAD
-
LIH
15h 37m2 stops
American Airlines Logo
11:00 pm - 9:17 pm
LIH
-
IAD
17h 17m2 stops
$456American Airlines
Tue, Feb 17 - Wed, Feb 25
Delta Logo
7:30 am - 7:55 pm
IAD
-
LIH
17h 25m1 stop
Delta Logo
10:55 pm - 11:10 pm
LIH
-
IAD
19h 15m1 stop
$459Delta
Thu, Feb 19 - Thu, Feb 26
Multiple Airlines Logo
7:05 am - 10:22 pm
IAD
-
LIH
20h 17m2 stops
Multiple Airlines Logo
11:19 pm - 5:20 pm
LIH
-
IAD
13h 01m1 stop
$473Multiple Airlines
Tue, Feb 17 - Wed, Feb 25
Delta Logo
7:30 am - 7:55 pm
IAD
-
LIH
17h 25m1 stop
Delta Logo
10:55 pm - 7:09 pm
LIH
-
IAD
15h 14m2 stops
$479Delta
Mon, Jan 19 - Fri, Jan 23
Multiple Airlines Logo
5:26 pm - 1:03 pm
IAD
-
LIH
24h 37m1 stop
Multiple Airlines Logo
9:00 pm - 5:04 pm
LIH
-
IAD
15h 04m2 stops
$480Multiple Airlines
Booking Insights

KAYAK's insights & trends for Dulles Intl to Kaua'i flights

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

Can I save money by flying with a layover from Washington, D.C. Dulles Intl Airport to Kaua'i?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $463, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Kaua'i?

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 Kaua'i, 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 Kaua'i is November, when tickets cost $647 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of round-trip tickets is $1,062 and $994 respectively.

What’s the cheapest day of the week to fly from Washington Dulles Airport to Kaua'i?

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

Your flight ticket price will generally be cheaper if you fly to Kaua'i on a Wednesday and more expensive on a Monday. On your return trip to Washington Dulles Airport, you should consider flying back on a Tuesday, and avoid Wednesdays for better deals.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Kaua'i?

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 Kaua'i, 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 Kaua'i, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$258
Best time to beat the crowds but there is an average 15% increase in price.
Most popular time to fly with an average 9% increase in price.
Flight from Washington Dulles Airport to Lihue

FAQs - booking Kaua'i flights

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Kaua'i?

    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 Kaua'i.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington Dulles Airport to Kaua'i 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 Kaua'i?

    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 from Washington Dulles Airport to Kaua'i with an airline and back with another airline.

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

    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 from Washington Dulles Airport to Kaua'i up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Kaua'i?

    The cheapest time of day to fly to Kaua'i is generally in the evening, when round-trip flights cost $785 on average. Morning departures are around 15% more expensive than evening flights, on average. The most expensive time of day to fly to Kaua'i is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,137.

Reviews of the top airlines flying from Dulles Intl to Kaua'i

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Kaua'i. 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 Kaua'i? 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 11465 reviews
8.5Crew
8.1Boarding
7.1Food
7.0Entertainment
7.8Comfort
Airline reviews

See previous. It was the flight from Honolulu to Kapalua that was cancelled.

8.0 ExcellentEvie, Dec 2025
SAN - HNL
Read more Alaska Airlines reviews

See previous. It was the flight from Honolulu to Kapalua that was cancelled.

Short trip from Honolulu to Kauai. Not a major issue. Only concern was the drop off of the luggage for departure. Only one person handling all of the passengers. She was busting her butt.

We appreciated that the flight attendant came through 3 times with drinks or water on the long flight..I was also glad that they were separating out recycling! I would have liked a 12oz sofa can instead of 7oz, but that's a minor quibble. The knee space in economy was also better than most of Alaska's competitors.

I liked the free snacks and drink. I liked the onboard entertainment. I did not like the WiFi cutting out in middle of my movie.

Good. Flight was good. Crew was good. Wish they offered coffee refills. Wish I didn’t have to pay for headphones. Otherwise good for a commercial flight.

Flight from LAX to STS das excellent. Flight from DCA to LAX was troubled by the previous flight returning to the one DCA gate putting our flight in jeopardy. However another gate was arranged and that flight was a bit late, but was handled exceptionally.

Should have been forthcoming for reason for delay. Should have been able to check in for seat I'd like.

It was fine. It was a 30 minute flight so there was water or fruit juice and no food. Which was totally fine. The check in, gate and flight crew were all excellent.

Boarding process was poorly handled by the gate crew and the onboard crew. No effort was made to provide equal treatment to passengers with overhead bin space. Crew seemed disengaged and unfriendly.

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

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

7 hours delayed due to operational issues on United’s end. Basically laziness.

Short flight but an "eager to help" crew made the journey more enjoyable!

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

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 .

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

Everything you need to know for your flight to Kaua'i

Information on your arrival and departure airports