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$165+ 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — LIH
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
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 December 4, 2025.

This American Airlines deal was found by Cheapflights users on 12/3. 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.
Thu 12/47:00 amDCA - LIH
1 stop13h 48mAmerican Airlines
Thu 12/1110:44 pmLIH - DCA
1 stop12h 10mAmerican Airlines
Deal found 12/3$653
This Alaska Airlines deal was found by Cheapflights users on 12/3. 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 12/47:34 amIAD - LIH
2 stops16h 55mAlaska Airlines
Thu 12/1111:25 pmLIH - IAD
1 stop12h 11mAlaska Airlines
Deal found 12/3$658
This Alaska Airlines deal was found by Cheapflights users on 12/3. 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 12/48:59 amDCA - LIH
2 stops18h 24mAlaska Airlines
Thu 12/112:53 pmLIH - DCA
1 stop25h 09mAlaska Airlines
Deal found 12/3$658
This Delta deal was found by Cheapflights users on 12/3. 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.
Thu 12/47:35 amDCA - LIH
2 stops15h 58mDelta
Thu 12/119:50 pmLIH - DCA
2 stops15h 09mDelta
Deal found 12/3$664
This Delta deal was found by Cheapflights users on 12/2. 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.
Tue 12/166:10 amDCA - LIH
2 stops17h 23mDelta
Fri 12/192:15 pmLIH - DCA
2 stops13h 58mDelta
Deal found 12/2$805
This Alaska Airlines deal was found by Cheapflights users on 12/3. 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 12/47:00 amBWI - LIH
1 stop13h 51mAlaska Airlines
Thu 12/1110:46 amLIH - BWI
2 stops13h 54mAlaska Airlines
Deal found 12/3$838
This American Airlines deal was found by Cheapflights users on 12/2. 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 12/167:00 amDCA - LIH
1 stop13h 48mAmerican Airlines
Fri 12/1910:45 pmLIH - DCA
1 stop11h 59mAmerican Airlines
Deal found 12/2$838
This United Airlines deal was found by Cheapflights users on 12/3. 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.
Thu 12/188:00 amBWI - LIH
1 stop14h 47mUnited Airlines
Mon 12/229:35 pmLIH - BWI
2 stops13h 43mUnited Airlines
Deal found 12/3$848
This United Airlines deal was found by Cheapflights users on 12/4. 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.
Thu 12/1810:10 pmIAD - LIH
2 stops24h 37mUnited Airlines
Mon 12/228:30 pmLIH - IAD
1 stop11h 46mUnited Airlines
Deal found 12/4$861
This United Airlines deal was found by Cheapflights users on 12/2. 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.
Tue 12/306:20 amIAD - LIH
1 stop15h 44mUnited Airlines
Wed 12/312:29 pmLIH - IAD
1 stop11h 18mUnited Airlines
Deal found 12/2$913
This Southwest deal was found by Cheapflights users on 12/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:15 amBWI - LIH
2 stops17h 00mSouthwest
Thu 12/119:10 pmLIH - BWI
2 stops14h 55mSouthwest
Deal found 12/3$924
This United Airlines deal was found by Cheapflights users on 12/4. 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 12/2210:10 pmIAD - LIH
1 stop23h 54mUnited Airlines
Sun 12/2811:59 pmLIH - IAD
1 stop11h 31mUnited Airlines
Deal found 12/4$946

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 December 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$323
(Southwest)

One-way from

$165
(Southwest)

Popular in

December

Cheapest in

September

Average price

$1,188
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. 3% potential increase in price ($33 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 4, 2025.
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

Mon 1/19

6:00 am-4:25 pm

2 stops15h 25m

Lihue

Tue 1/27

9:15 pm-4:35 pm

1 stop14h 20m

$312

BaltimoreLihue

BWI - LIH

BWILIH

Baltimore/Washington

Sun 2/1

8:30 pm-1:15 pm

2 stops21h 45m

Lihue

Tue 2/10

11:45 am-5:30 am

2 stops12h 45m

$323

BaltimoreLihue

BWI - LIH

BWILIH

Baltimore/Washington

Mon 1/19

8:30 pm-1:15 pm

2 stops21h 45m

Lihue

Tue 1/27

9:15 pm-7:20 pm

1 stop17h 05m

$354

BaltimoreLihue

BWI - LIH

BWILIH

Baltimore/Washington

Mon 1/19

8:30 pm-1:15 pm

2 stops21h 45m

Lihue

Wed 1/21

8:10 am-5:30 am

2 stops16h 20m

$359

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

Wed 2/4

8:00 am-10:41 pm

1 stop19h 41m

Lihue

Mon 2/9

10:20 pm-9:59 pm

1 stop18h 39m

$398

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

Wed 2/4

8:00 am-10:41 pm

1 stop19h 41m

Lihue

Tue 2/10

5:25 pm-4:09 pm

2 stops17h 44m

$403

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Sun 2/1

7:30 am-7:54 pm

2 stops17h 24m

Lihue

Tue 2/10

10:35 pm-11:10 pm

2 stops19h 35m

$416

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

Sun 2/1

4:44 pm-6:46 pm

1 stop31h 02m

Lihue

Mon 2/9

10:35 pm-3:33 pm

1 stop11h 58m

$425

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Wed 2/4

6:04 pm-10:41 pm

1 stop33h 37m

Lihue

Tue 2/10

10:20 pm-4:26 pm

1 stop13h 06m

$427

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Sun 2/1

6:04 pm-10:41 pm

1 stop33h 37m

Lihue

Tue 2/10

3:30 pm-4:26 pm

2 stops19h 56m

$432

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/1

Showing 1-10 of 51 results
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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 $691). 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 WAS to FUS?

Find hourly flight availability from Washington, D.C. 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 December 4, 2025.

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. to Kaua'i in the morning. If you’re flexible enough to do this you can expect to save up to 16% on your trip compared to booking a flight in the evening.

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 December 4, 2025.
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
11,402 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

PDX - BNA

My family especially liked the leg room and comfortable seats.
Alaska Airlines
8.0
Very good
11,402 reviews
Alaska Airlines
8.0
Very good
11,402 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

PDX - BNA

My family especially liked the leg room and comfortable seats.
Southwest
8.0
Very good
4,250 reviews
Alaska Airlines
8.0
Very good
11,402 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

PDX - BNA

My family especially liked the leg room and comfortable seats.
Delta
7.9
Good
8,011 reviews
Alaska Airlines
8.0
Very good
11,402 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

PDX - BNA

My family especially liked the leg room and comfortable seats.
United Airlines
7.4
Good
9,066 reviews
Alaska Airlines
8.0
Very good
11,402 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

PDX - BNA

My family especially liked the leg room and comfortable seats.
American Airlines
7.2
Good
11,047 reviews
Alaska Airlines
8.0
Very good
11,402 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

PDX - BNA

My family especially liked the leg room and comfortable seats.

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 25m. Southwest provides one of the quickest options available for as low as $312. There are 4878 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 cheapest airlines to fly from Washington, D.C. to Kaua'i one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $216. However, be on the lookout for offers from United Airlines and Alaska Airlines, as they are both options that can get you from Washington, D.C. to Kaua'i for a low price.

  • 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 $691). 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

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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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$406Average$669FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$499Average$897FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$504Average$730FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$515Average$773FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$671Average$817FlexibilityNo cancel feeOn-time63%

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