HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Kaua'i

$297+ Cheap flights from Dulles Intl (IAD) to Kaua'i

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 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — LIH
Mar 2 — Mar 91
Sun 3/2
Sun 3/9
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl to Kaua'i with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Dulles Intl to Kaua'i

Keep the following information in mind while searching for Dulles Intl to Kaua'i flight deals. Data was last updated February 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$574
(Alaska Airlines)

One-way from

$297
(Alaska Airlines)

Popular in

June

Cheapest in

September

Average price

$728
Provider with most accurate pricing for Washington, D.C. (WAS)-Lihue flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Lihue flights.
Search Deals
From Washington, D.C. Dulles Intl to Kaua'i
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Kaua'i
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($125 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

Find flight deals from Dulles Intl to Kaua'i

Cheapest flights from Dulles Intl to Kaua'i
Explore the most affordable flight options available from Dulles Intl to Kaua'i. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 25, 2025.

This Alaska Airlines deal was found by Cheapflights users on 2/24. 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.
Tue 4/87:31 amIAD - LIH
1 stop34h 09mAlaska Airlines
Tue 4/1510:45 amLIH - IAD
1 stop24h 37mAlaska Airlines
Deal found 2/24$574
This American Airlines deal was found by Cheapflights users on 2/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/266:30 amIAD - LIH
2 stops15h 32mAmerican Airlines
Wed 3/510:15 pmLIH - IAD
2 stops13h 07mAmerican Airlines
Deal found 2/25$595
This United Airlines deal was found by Cheapflights users on 2/24. 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 11/36:20 amIAD - LIH
2 stops15h 34mUnited Airlines
Mon 11/108:40 pmLIH - IAD
2 stops14h 21mUnited Airlines
Deal found 2/24$627
This Delta deal was found by Cheapflights users on 2/25. 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.
Wed 2/267:20 amIAD - LIH
2 stops17h 49mDelta
Wed 3/510:51 pmLIH - IAD
1 stop11h 37mDelta
Deal found 2/25$638
This Kiwi.com deal was found by Cheapflights users on 2/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/207:25 pmIAD - LIH
1 stop22h 20mHawaiian Airlines
Tue 5/2710:50 amLIH - IAD
1 stop23h 24mHawaiian Airlines
Deal found 2/23$735

Find flights from Dulles Intl to Kaua'i within your budget

Customize your flight search to find flights from Dulles Intl to Kaua'i 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 February 25, 2025.

Fly from

Dulles Intl

Fly to

Kaua'i

Route

Depart

Return

Price

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Tue 4/8

7:31 am-11:40 am

1 stop34h 09m

Lihue

Tue 4/15

10:45 am-5:22 pm

1 stop24h 37m

$574

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Tue 4/1

6:18 am-4:42 pm

2 stops16h 24m

Lihue

Tue 4/8

9:32 pm-4:23 pm

2 stops12h 51m

$604

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Sun 3/9

12:35 pm-10:06 pm

1 stop15h 31m

Lihue

Fri 3/14

1:33 pm-6:50 am

1 stop11h 17m

$649

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Wed 4/16

7:25 am-6:44 pm

1 stop17h 19m

Lihue

Wed 4/23

8:15 pm-6:21 am

1 stop28h 06m

$662

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Tue 5/20

7:25 pm-11:45 am

1 stop22h 20m

Lihue

Tue 5/27

10:50 am-4:14 pm

1 stop23h 24m

$735

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Mon 3/17

5:18 pm-11:00 am

2 stops23h 42m

$297

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Fri 5/9

6:00 am-5:19 pm

2 stops17h 19m

$323

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Sat 5/10

10:05 pm-11:32 am

1 stop19h 27m

$376

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/23

Best time to book a flight from Dulles Intl to Kaua'i

Have a flexible travel schedule? Discover the best time to fly to Kaua'i from Dulles Intl 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.

Travel insights for flights from Dulles Intl to Kaua'i

Get recent, data-driven insights about flights from Dulles Intl to Kaua'i including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Kaua'i (average of $440). Flying from Washington, D.C. Dulles Intl Airport to Kaua'i in June is currently the most expensive (average of $686). 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.

What is the cheapest time of day to fly from IAD to FUS?

Find hourly flight availability from Dulles Intl to Kaua'i. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 25, 2025.

When flying from Washington, D.C. Dulles Intl Airport to Kaua'i, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Kaua'i by month

Plan your trip to Kaua'i by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Kaua'i ranges from 2.2 - 6.7 inches per month. January is typically the wettest month, when rainfall can reach 6.7 in. June is typically the driest time to visit Kaua'i when rainfall is around 2.2 in.

Temperature in Kaua'i by month

Plan your trip to Kaua'i by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Kaua'i, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 69.8 F).

Reviews of airlines servicing Kaua'i

Get insights into the airlines that provide service to Kaua'i. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Kaua'i. Reviews last updated February 25, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta and Hawaiian Airlines from Washington, D.C. to Kaua'i by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,713 reviews

Comfort

7.9

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines
8.0
Very good
9,713 reviews
Alaska Airlines
8.0
Very good
9,713 reviews

Comfort

7.9

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta
8.0
Very good
8,163 reviews
Alaska Airlines
8.0
Very good
9,713 reviews

Comfort

7.9

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Hawaiian Airlines
7.9
Good
2,312 reviews
Alaska Airlines
8.0
Very good
9,713 reviews

Comfort

7.9

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines
7.4
Good
8,734 reviews
Alaska Airlines
8.0
Very good
9,713 reviews

Comfort

7.9

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,713 reviews

Comfort

7.9

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Kaua'i. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Kaua'i one-way?

    $297 is the cheapest one-way deal found within the past few days, from Alaska Airlines. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from $323 and $376, respectively.

  • Can I find deals for flights from Dulles Intl to Kaua'i that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Kaua'i flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Kaua'i?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Kaua'i.

  • Can I find deals for business class flights from Dulles Intl to Kaua'i?

    Yes. Cheapflights offers flight deals from Dulles Intl to Kaua'i 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. Dulles Intl Airport to Kaua'i?

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Kaua'i (average of $440). Flying from Washington, D.C. Dulles Intl Airport to Kaua'i in June is currently the most expensive (average of $686). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dulles Intl to Kaua'i

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Honolulu flights
Baltimore to Honolulu flights
Reagan-National to Honolulu flights
Dulles Intl to Kahului flights
Reagan-National to Kahului flights
Baltimore to Kahului flights
Dulles Intl to Kailua-Kona flights
Dulles Intl to Lihue flights
Reagan-National to Kailua-Kona flights
Baltimore to Kailua-Kona flights
Reagan-National to Lihue flights
Baltimore to Lihue flights
Dulles Intl to Hilo flights
Baltimore to Hilo flights
Reagan-National to Hilo flights
Dulles Intl to Kapalua flights
Baltimore to Kapalua flights
Baltimore to Hana flights
Dulles Intl to Hana flights
Baltimore to Lanai City flights
Baltimore to Hoolehua flights
Baltimore to Waimea (Kamuela) flights
Dulles Intl to Waimea (Kamuela) flights

Top 3 airlines flying from Dulles Intl to Kaua'i

Discover the top 3 airlines that operate flights from Dulles Intl to Kaua'i. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$455Average$887FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$517Average$987FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$569Average$907FlexibilityNo cancel feeOn-time69%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.