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$246+ 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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — LIH
oct. 15 — oct. 221
mié. 10/15
mié. 10/22
1 adult, Economy
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Cheap 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 septiembre 15, 2025.

Round-trip from

$400
(Kiwi.com)

One-way from

$246
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$630
From Washington, D.C. (WAS) to Kaua'i
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One-way flight from Washington, D.C. (WAS) to Kaua'i
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Highest demand for flights based on searches. 8% potential increase in price ($71 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 septiembre 15, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
jue. 11/138:26 pmBWI - LIH
1 stop19h 57mMultiple Airlines
mar. 11/1812:48 pmLIH - BWI
1 stop25h 31mMultiple Airlines
Deal found 9/15$400
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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.
mié. 12/108:59 amDCA - LIH
1 stop33h 54mAlaska Airlines
mié. 12/172:53 pmLIH - DCA
1 stop25h 26mAlaska Airlines
Deal found 9/14$456
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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.
jue. 11/138:00 amDCA - LIH
1 stop19h 25mAlaska Airlines
mar. 11/1812:48 pmLIH - DCA
1 stop26h 12mAlaska Airlines
Deal found 9/15$457
This United Airlines deal was found by Cheapflights users on 9/15. 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.
jue. 11/138:25 amIAD - LIH
1 stop13h 33mUnited Airlines
mar. 11/188:30 pmLIH - IAD
2 stops14h 25mUnited Airlines
Deal found 9/15$462
This Alaska Airlines deal was found by Cheapflights users on 9/13. 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.
mar. 11/49:59 amDCA - LIH
2 stops17h 16mAlaska Airlines
jue. 11/138:01 pmLIH - DCA
2 stops16h 57mAlaska Airlines
Deal found 9/13$468
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
mar. 11/45:35 amBWI - LIH
2 stops21h 40mMultiple Airlines
vie. 11/1412:48 pmLIH - BWI
1 stop25h 31mMultiple Airlines
Deal found 9/13$479
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
mar. 11/45:35 amBWI - LIH
2 stops21h 40mMultiple Airlines
jue. 11/1312:48 pmLIH - BWI
1 stop25h 31mMultiple Airlines
Deal found 9/13$486
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
dom. 11/21:35 pmBWI - LIH
2 stops26h 48mMultiple Airlines
vie. 11/1412:48 pmLIH - BWI
1 stop25h 31mMultiple Airlines
Deal found 9/13$488
This Delta deal was found by Cheapflights users on 9/13. 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.
sáb. 11/14:51 pmDCA - LIH
1 stop31h 02mDelta
lun. 11/109:29 pmLIH - DCA
1 stop12h 56mDelta
Deal found 9/13$488
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
sáb. 11/15:35 amBWI - LIH
2 stops22h 40mMultiple Airlines
vie. 11/1412:48 pmLIH - BWI
1 stop25h 31mMultiple Airlines
Deal found 9/13$489
This Delta deal was found by Cheapflights users on 9/15. 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.
lun. 11/37:35 amIAD - LIH
1 stop17h 30mDelta
mar. 11/189:29 pmLIH - IAD
2 stops14h 35mDelta
Deal found 9/15$492
This Delta deal was found by Cheapflights users on 9/13. 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.
vie. 10/317:45 amDCA - LIH
2 stops17h 20mDelta
lun. 11/109:29 pmLIH - DCA
1 stop12h 56mDelta
Deal found 9/13$492

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 septiembre 15, 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

BaltimoreLihue

BWI - LIH

BWILIH

Baltimore/Washington

jue. 11/13

8:26 pm-11:23 am

1 stop19h 57m

Lihue

mar. 11/18

12:48 pm-7:19 pm

1 stop25h 31m

$400

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

mar. 1/13

7:00 am-3:07 pm

1 stop13h 07m

Lihue

mar. 1/20

10:30 pm-3:56 pm

1 stop12h 26m

$457

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

jue. 11/13

8:00 am-10:25 pm

1 stop19h 25m

Lihue

mar. 11/18

12:48 pm-8:00 pm

1 stop26h 12m

$457

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

jue. 11/13

8:25 am-4:58 pm

1 stop13h 33m

Lihue

mar. 11/18

8:30 pm-3:55 pm

2 stops14h 25m

$462

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

mié. 12/10

6:29 am-6:30 pm

2 stops17h 01m

Lihue

mié. 12/17

9:44 pm-3:27 pm

1 stop12h 43m

$462

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

mar. 1/13

8:00 am-10:15 pm

1 stop19h 15m

Lihue

lun. 1/19

4:09 pm-4:04 pm

2 stops18h 55m

$462

Washington, D.C.Lihue

DCA - LIH

DCALIH

Washington, D.C. Reagan-National

jue. 11/13

6:30 am-4:58 pm

2 stops15h 28m

Lihue

mar. 11/18

2:31 pm-9:53 am

2 stops14h 22m

$468

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

vie. 10/31

7:35 am-7:05 pm

1 stop17h 30m

Lihue

lun. 11/10

9:29 pm-5:04 pm

2 stops14h 35m

$492

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

dom. 11/9

7:15 am-8:04 pm

1 stop17h 49m

Lihue

jue. 11/13

9:29 pm-6:19 pm

2 stops15h 50m

$492

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

jue. 11/6

7:35 am-8:05 pm

1 stop17h 30m

Lihue

mar. 11/11

9:29 pm-6:19 pm

2 stops15h 50m

$492

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 47 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, January is the cheapest month in which you can book a flight from Washington, D.C. to Kaua'i (average of $440). Flying from Washington, D.C. to Kaua'i in June is currently the most expensive (average of $689). 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 septiembre 15, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. to Kaua'i as you normally would.

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 septiembre 15, 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
10,000 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Southwest
8.0
Very good
4,242 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
8.0
Very good
7,954 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,929 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

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 07m. American Airlines provides one of the quickest options available for as low as $457. 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 $259. However, be on the lookout for offers from Alaska Airlines and American 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, January is the cheapest month in which you can book a flight from Washington, D.C. to Kaua'i (average of $440). Flying from Washington, D.C. to Kaua'i in June is currently the most expensive (average of $689). 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 septiembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$406Average$655FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$484Average$702FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$515Average$774FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$547Average$887FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$671Average$926FlexibilityNo cancel feeOn-time63%

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