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$197+ 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — LIH
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
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 August 14, 2025.

Round-trip from

$450
(Alaska Airlines)

One-way from

$197
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$833
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. 7% potential increase in price ($64 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 August 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 August 14, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
Sat 10/45:45 amBWI - LIH
1 stop36h 12mMultiple Airlines
Wed 10/84:07 pmLIH - BWI
2 stops32h 27mMultiple Airlines
Deal found 8/12$379
This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
Mon 9/85:45 amBWI - LIH
2 stops38h 11mMultiple Airlines
Tue 9/161:36 pmLIH - BWI
1 stop35h 25mMultiple Airlines
Deal found 8/12$394
This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
Sat 9/68:16 amBWI - LIH
2 stops34h 05mMultiple Airlines
Tue 9/161:36 pmLIH - BWI
1 stop35h 25mMultiple Airlines
Deal found 8/12$411
This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
Mon 9/85:45 amBWI - LIH
2 stops38h 11mMultiple Airlines
Thu 9/181:36 pmLIH - BWI
1 stop35h 25mMultiple Airlines
Deal found 8/12$420
This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
Mon 9/85:45 amBWI - LIH
2 stops22h 27mMultiple Airlines
Wed 9/171:36 pmLIH - BWI
1 stop35h 25mMultiple Airlines
Deal found 8/12$431
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 11/45:35 amBWI - LIH
1 stop36h 38mMultiple Airlines
Sat 11/88:01 pmLIH - BWI
2 stops18h 18mMultiple Airlines
Deal found 8/12$432
This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
Sat 10/45:45 amBWI - LIH
1 stop36h 12mMultiple Airlines
Thu 10/91:12 pmLIH - BWI
2 stops22h 05mMultiple Airlines
Deal found 8/12$439
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 9/95:45 amBWI - LIH
1 stop36h 11mMultiple Airlines
Tue 9/161:11 pmLIH - BWI
2 stops22h 46mMultiple Airlines
Deal found 8/12$442
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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.
Sun 12/75:51 pmIAD - LIH
1 stop25h 55mAlaska Airlines
Thu 12/1111:00 amLIH - IAD
1 stop25h 25mAlaska Airlines
Deal found 8/13$450
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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 11/267:53 amIAD - LIH
1 stop19h 21mAlaska Airlines
Wed 12/310:10 pmLIH - IAD
1 stop14h 45mAlaska Airlines
Deal found 8/12$451
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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.
Wed 11/268:00 amDCA - LIH
1 stop19h 14mAlaska Airlines
Wed 12/311:00 amLIH - DCA
1 stop29h 10mAlaska Airlines
Deal found 8/13$451
This United Airlines deal was found by Cheapflights users on 8/12. 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.
Wed 10/298:25 amIAD - LIH
1 stop13h 33mUnited Airlines
Tue 11/48:30 pmLIH - IAD
2 stops14h 25mUnited Airlines
Deal found 8/12$456

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 August 14, 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

Sat 10/4

5:45 am-11:57 am

1 stop36h 12m

Lihue

Wed 10/8

4:07 pm-6:34 am

2 stops32h 27m

$379

BaltimoreLihue

BWI - LIH

BWILIH

Baltimore/Washington

Mon 9/8

5:45 am-1:56 pm

2 stops38h 11m

Lihue

Tue 9/16

1:36 pm-7:01 am

1 stop35h 25m

$394

BaltimoreLihue

BWI - LIH

BWILIH

Baltimore/Washington

Sat 9/6

8:16 am-12:21 pm

2 stops34h 05m

Lihue

Tue 9/16

1:36 pm-7:01 am

1 stop35h 25m

$411

BaltimoreLihue

BWI - LIH

BWILIH

Baltimore/Washington

Mon 9/8

5:45 am-1:56 pm

2 stops38h 11m

Lihue

Thu 9/18

1:36 pm-7:01 am

1 stop35h 25m

$420

BaltimoreLihue

BWI - LIH

BWILIH

Baltimore/Washington

Mon 9/8

5:45 am-10:12 pm

2 stops22h 27m

Lihue

Wed 9/17

1:36 pm-7:01 am

1 stop35h 25m

$431

BaltimoreLihue

BWI - LIH

BWILIH

Baltimore/Washington

Sat 10/4

5:45 am-11:57 am

1 stop36h 12m

Lihue

Tue 10/7

1:12 pm-5:17 pm

2 stops22h 05m

$431

BaltimoreLihue

BWI - LIH

BWILIH

Baltimore/Washington

Tue 11/4

5:35 am-1:13 pm

1 stop36h 38m

Lihue

Sat 11/8

8:01 pm-7:19 pm

2 stops18h 18m

$432

BaltimoreLihue

BWI - LIH

BWILIH

Baltimore/Washington

Sat 10/4

5:45 am-11:57 am

1 stop36h 12m

Lihue

Thu 10/9

1:12 pm-5:17 pm

2 stops22h 05m

$439

BaltimoreLihue

BWI - LIH

BWILIH

Baltimore/Washington

Tue 9/9

5:45 am-11:56 am

1 stop36h 11m

Lihue

Tue 9/16

1:11 pm-5:57 pm

2 stops22h 46m

$442

Washington, D.C.Lihue

IAD - LIH

IADLIH

Washington, D.C. Dulles Intl

Wed 10/29

8:25 am-3:58 pm

1 stop13h 33m

Lihue

Tue 11/4

8:30 pm-1:18 pm

1 stop11h 48m

$451

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 45 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 August 14, 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 August 14, 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

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Southwest
8.0
Very good
4,244 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
United Airlines
7.4
Good
8,916 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

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.

  • 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 $226. However, be on the lookout for offers from American 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, 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

Browse thousands of different options on Cheapflights for your next trip

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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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$406Average$655FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$437Average$774FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$484Average$713FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$547Average$925FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$628Average$896FlexibilityNo cancel feeOn-time63%

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