Kaua'i

$312+ 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 7/7. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — LIH
apr. 1 — apr. 81
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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 maart 2, 2026.

This Delta deal was found by Cheapflights users on 2/26. 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.
ma 5/47:00 am
IAD
-
LIH
1 stop16h 40m
Delta
di 5/129:40 pm
LIH
-
IAD
2 stops15h 03m
Delta
Deal found 2/26$446
This United Airlines deal was found by Cheapflights users on 2/26. 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.
za 5/212:35 pm
IAD
-
LIH
1 stop13h 17m
United Airlines
di 5/51:16 pm
LIH
-
IAD
1 stop11h 46m
United Airlines
Deal found 2/26$455
This Alaska Airlines deal was found by Cheapflights users on 2/27. 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.
do 9/177:51 am
BWI
-
LIH
1 stop20h 05m
Alaska Airlines
wo 9/2310:47 am
LIH
-
BWI
1 stop13h 34m
Alaska Airlines
Deal found 2/27$458
This Delta deal was found by Cheapflights users on 2/26. 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.
za 5/26:05 am
DCA
-
LIH
2 stops17h 35m
Delta
wo 5/68:20 pm
LIH
-
DCA
1 stop13h 10m
Delta
Deal found 2/26$461
This Alaska Airlines deal was found by Cheapflights users on 2/27. 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.
do 9/177:51 am
BWI
-
LIH
1 stop20h 05m
Multiple Airlines
wo 9/238:19 am
LIH
-
BWI
2 stops16h 02m
Multiple Airlines
Deal found 2/27$464
This Delta deal was found by Cheapflights users on 2/26. 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.
za 5/26:00 am
IAD
-
LIH
2 stops17h 40m
Delta
di 5/58:20 pm
LIH
-
IAD
2 stops15h 37m
Delta
Deal found 2/26$466
This United Airlines deal was found by Cheapflights users on 2/26. 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.
za 5/210:30 am
DCA
-
LIH
2 stops15h 53m
United Airlines
di 5/51:16 pm
LIH
-
DCA
2 stops13h 40m
United Airlines
Deal found 2/26$466
This Alaska Airlines deal was found by Cheapflights users on 2/26. 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.
wo 4/299:00 am
IAD
-
LIH
1 stop18h 26m
Alaska Airlines
wo 5/610:26 pm
LIH
-
IAD
1 stop25h 24m
Alaska Airlines
Deal found 2/26$467
This United Airlines deal was found by Cheapflights users on 3/1. 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.
zo 4/266:22 am
BWI
-
LIH
2 stops19h 31m
United Airlines
di 5/51:16 pm
LIH
-
BWI
2 stops14h 46m
United Airlines
Deal found 3/1$475
This Delta deal was found by Cheapflights users on 3/1. 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.
zo 4/267:00 am
IAD
-
LIH
1 stop16h 40m
Delta
di 5/58:20 pm
LIH
-
IAD
2 stops21h 24m
Delta
Deal found 3/1$476
This Delta deal was found by Cheapflights users on 2/26. 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.
vr 5/16:05 am
DCA
-
LIH
2 stops18h 35m
Delta
di 5/58:20 pm
LIH
-
DCA
1 stop13h 07m
Delta
Deal found 2/26$476
This Alaska Airlines deal was found by Cheapflights users on 3/1. 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.
wo 4/298:59 am
DCA
-
LIH
2 stops18h 27m
Alaska Airlines
wo 5/61:36 pm
LIH
-
DCA
1 stop25h 24m
Alaska Airlines
Deal found 3/1$478

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 maart 2, 2026.

Round-trip from

$446
(Delta)

One-way from

$312
(Delta)

Popular in

December

Cheapest in

January

Average price

$1,039
From Washington, D.C. (WAS) to Kaua'i
One-way flight from Washington, D.C. (WAS) to Kaua'i
Highest demand for flights based on searches. 7% potential increase in price ($67 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($39 potential savings vs. average RT price).
Average for round-trip flights in March 2026

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 maart 2, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Kaua'i that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

wo 4/29

7:00 am-6:40 pm

2 stops17h 40m

Lihue

wo 5/6

8:20 pm-6:53 pm

2 stops16h 33m

$498

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

do 5/7

7:10 am-9:26 pm

1 stop20h 16m

Lihue

zo 5/10

10:26 pm-12:09 am

1 stop19h 43m

$524

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

di 4/14

6:59 am-6:40 pm

2 stops17h 41m

Lihue

ma 4/20

9:25 pm-3:29 pm

1 stop12h 04m

$528

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

wo 4/15

7:00 am-9:29 pm

1 stop20h 29m

Lihue

wo 4/22

10:26 pm-12:09 am

1 stop19h 43m

$538

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

wo 4/15

7:00 am-10:21 pm

2 stops21h 21m

Lihue

wo 4/22

10:26 pm-12:09 am

1 stop19h 43m

$543

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

wo 4/15

8:00 am-9:29 pm

1 stop19h 29m

Lihue

wo 4/22

1:36 pm-9:00 pm

1 stop25h 24m

$559

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

wo 4/8

5:00 pm-11:46 am

2 stops24h 46m

Lihue

wo 4/15

2:40 pm-5:41 pm

2 stops21h 01m

$569

BaltimoreLihue

BWI - LIH

BWILIH

Baltimore/Washington

wo 4/29

7:04 am-9:26 pm

1 stop20h 22m

Lihue

wo 5/6

10:26 pm-6:16 pm

1 stop13h 50m

$569

BaltimoreLihue

BWI - LIH

BWILIH

Baltimore/Washington

wo 4/29

6:08 am-6:40 pm

2 stops18h 32m

Lihue

wo 5/6

9:25 pm-6:04 pm

2 stops14h 39m

$576

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

di 4/7

6:00 am-5:41 pm

2 stops17h 41m

Lihue

di 4/14

9:25 pm-6:59 pm

2 stops15h 34m

$588

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/1

Showing 1-10 of 52 resultsSorted by cheapest first
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3
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6

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 $703). 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 maart 2, 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.

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

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 15h 30m. Delta provides one of the quickest options available for as low as $610. There are 4892 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?

  • 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 $703). 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

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Alternative routes for Washington, D.C. to Kaua'i

See prices for flight routes from nearby airports that may be better suited for you.

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 maart 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$228Average$545FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$376Average$678FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$499Average$888FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$540Average$804FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$628Average$889FlexibilityNo cancel feeOn-time63%

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