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Kaua'i

$230+ Cheap flights from Washington, D.C. (WAS) 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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — LIH
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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Cheap flight deals from Washington, D.C. to Kaua'i

Cheapest flights from Washington, D.C. to Kaua'i
Explore the most affordable flight options available from Washington, D.C. to Kaua'i. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2026.

This Alaska Airlines deal was found by Cheapflights users on 1/20. 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.
Thu 4/307:10 am
IAD
-
LIH
1 stop20h 16m
Alaska Airlines
Thu 5/710:26 pm
LIH
-
IAD
1 stop19h 43m
Alaska Airlines
Deal found 1/20$422
This Alaska Airlines deal was found by Cheapflights users on 1/21. 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.
Wed 4/297:10 am
IAD
-
LIH
1 stop20h 16m
Alaska Airlines
Wed 5/61:36 pm
LIH
-
IAD
1 stop22h 05m
Alaska Airlines
Deal found 1/21$460
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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.
Wed 4/298:00 am
DCA
-
LIH
1 stop19h 26m
Alaska Airlines
Wed 5/61:36 pm
LIH
-
DCA
1 stop25h 24m
Alaska Airlines
Deal found 1/20$460
This Expedia deal was found by Cheapflights users on 1/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/86:20 pm
IAD
-
LIH
1 stop24h 36m
Multiple Airlines
Thu 3/124:22 pm
LIH
-
IAD
2 stops18h 58m
Multiple Airlines
Deal found 1/19$465
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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.
Wed 4/298:00 am
DCA
-
LIH
2 stops18h 29m
Multiple Airlines
Wed 5/61:36 pm
LIH
-
DCA
1 stop25h 24m
Multiple Airlines
Deal found 1/20$465
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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.
Wed 4/299:00 am
IAD
-
LIH
2 stops17h 29m
Multiple Airlines
Wed 5/61:36 pm
LIH
-
IAD
1 stop22h 05m
Multiple Airlines
Deal found 1/20$466
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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.
Thu 2/198:00 am
DCA
-
LIH
1 stop19h 18m
Multiple Airlines
Tue 2/246:32 pm
LIH
-
DCA
2 stops20h 33m
Multiple Airlines
Deal found 1/20$466
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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.
Wed 4/297:04 am
BWI
-
LIH
1 stop20h 22m
Multiple Airlines
Wed 5/69:00 pm
LIH
-
BWI
2 stops15h 16m
Multiple Airlines
Deal found 1/20$479
This Expedia deal was found by Cheapflights users on 1/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/176:59 pm
DCA
-
LIH
2 stops25h 22m
Multiple Airlines
Fri 2/272:56 pm
LIH
-
DCA
1 stop25h 06m
Multiple Airlines
Deal found 1/20$495
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Tue 2/176:45 am
DCA
-
LIH
2 stops15h 29m
American Airlines
Fri 2/2710:30 pm
LIH
-
DCA
2 stops15h 11m
American Airlines
Deal found 1/20$501
This Expedia deal was found by Cheapflights users on 1/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/76:20 pm
IAD
-
LIH
2 stops20h 27m
Multiple Airlines
Thu 3/1210:12 am
LIH
-
IAD
2 stops25h 08m
Multiple Airlines
Deal found 1/18$503
This Expedia deal was found by Cheapflights users on 1/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/88:59 am
DCA
-
LIH
1 stop33h 57m
Alaska Airlines
Thu 3/123:50 pm
LIH
-
DCA
1 stop23h 12m
Alaska Airlines
Deal found 1/19$510

Find flight deals from Washington, D.C. to Kaua'i

Keep the following information in mind while searching for Washington, D.C. to Kaua'i flight deals. Data was last updated January 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$422
(Alaska Airlines)

One-way from

$230
(Expedia)

Popular in

December

Cheapest in

September

Average price

$645
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. (WAS) to Kaua'i
Search Deals
One-way flight from Washington, D.C. (WAS) to Kaua'i
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($67 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 January 21, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Kaua'i that are best for you.

Fly from

Washington, D.C.

Fly to

Kaua'i

Route

Depart

Return

Price

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

Thu 2/19

8:00 am-10:18 pm

1 stop19h 18m

Lihue

Tue 2/24

6:32 pm-8:05 pm

2 stops20h 33m

$466

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

Tue 2/17

6:45 am-5:14 pm

2 stops15h 29m

Lihue

Fri 2/27

10:30 pm-6:41 pm

2 stops15h 11m

$501

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Sat 3/7

6:20 pm-9:47 am

2 stops20h 27m

Lihue

Thu 3/12

10:12 am-5:20 pm

2 stops25h 08m

$503

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Wed 4/8

7:00 am-9:29 pm

1 stop20h 29m

Lihue

Wed 4/22

1:36 pm-5:41 pm

1 stop22h 05m

$530

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

Wed 4/8

8:00 am-9:29 pm

1 stop19h 29m

Lihue

Wed 4/22

1:36 pm-9:00 pm

1 stop25h 24m

$530

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Wed 4/8

7:00 am-9:29 pm

1 stop20h 29m

Lihue

Wed 4/22

5:10 pm-5:41 pm

2 stops18h 31m

$536

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Tue 2/17

6:20 pm-12:47 pm

1 stop23h 27m

Lihue

Fri 2/27

4:21 pm-5:27 pm

2 stops20h 06m

$561

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Tue 3/10

2:36 pm-9:57 pm

1 stop13h 21m

Lihue

Tue 5/26

10:55 pm-7:07 pm

1 stop14h 12m

$562

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Thu 2/19

7:05 am-10:18 pm

1 stop20h 13m

Lihue

Tue 2/24

4:50 pm-5:27 pm

1 stop19h 37m

$566

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

Mon 2/2

5:55 am-4:37 pm

2 stops15h 42m

Lihue

Wed 2/11

11:00 pm-3:59 pm

1 stop11h 59m

$568

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 48 results
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5

Best time to book a flight from Washington, D.C. to Kaua'i

Have a flexible travel schedule? Discover the best time to fly to Kaua'i from Washington, D.C. 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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Kaua'i

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

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Kaua'i (average of $247). Flying from Washington, D.C. to Kaua'i in March is currently the most expensive (average of $693). 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.

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 January 21, 2026.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta from Washington, D.C. to Kaua'i. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,775 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,775 reviews
Alaska Airlines
8.0
Very good
11,775 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Southwest
8.0
Very good
4,266 reviews
Alaska Airlines
8.0
Very good
11,775 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Delta
7.9
Good
8,089 reviews
Alaska Airlines
8.0
Very good
11,775 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,191 reviews
Alaska Airlines
8.0
Very good
11,775 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
American Airlines
7.2
Good
11,174 reviews
Alaska Airlines
8.0
Very good
11,775 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

Related info for your journey

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

  • How long is the flight from Washington, D.C. to Kaua'i?

    A quick flight from Washington, D.C. to Kaua'i can take about 13h 21m. American Airlines provides one of the quickest options available for as low as $562. There are 4854 mi between Washington, D.C. and Kaua'i. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Washington, D.C. to Kaua'i?

    The most popular flight routes from Washington, D.C. to Kaua'i are Washington, D.C. Dulles Intl - Lihue, Washington, D.C. Reagan-National - Lihue and Baltimore/Washington - Lihue.

  • Can I find deals for flights from Washington, D.C. to Kaua'i that include hotel bookings?

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

  • How can I find direct flights from Washington, D.C. to Kaua'i?

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

  • Can I find deals for business class flights from Washington, D.C. to Kaua'i?

    Yes. Cheapflights offers flight deals from Washington, D.C. 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. to Kaua'i?

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Kaua'i (average of $247). Flying from Washington, D.C. to Kaua'i in March is currently the most expensive (average of $693). 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.

Top 5 airlines flying from Washington, D.C. to Kaua'i

Discover the top 5 airlines that operate flights from Washington, D.C. 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 January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$228Average$545FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$376Average$663FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$499Average$879FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$540Average$704FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$671Average$813FlexibilityNo cancel feeOn-time63%

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