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Kaua'i

$119+ Cheap flights from Washington 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 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LIH
Dec 21 — Dec 281
Sun 12/21
Sun 12/28
1 adult, Economy
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Cheap flight deals from Washington to Kaua'i

Keep the following information in mind while searching for Washington to Kaua'i flight deals. Data was last updated November 21, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$239
(American Airlines)

One-way from

$119
(Delta)

Popular in

July

Cheapest in

January

Average price

$517

Good round-trip deal

$353 or less

Good one-way deal

$241 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Lihue flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Lihue flights.
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From Washington to Kaua'i
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One-way flight from Washington to Kaua'i
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Highest demand for flights based on searches. 10% potential increase in price ($65 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Washington to Kaua'i.
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Price to beat on a one-way flight from Washington to Kaua'i.
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Find flight deals from Washington to Kaua'i

Cheapest flights from Washington to Kaua'i
Explore the most affordable flight options available from Washington to Kaua'i. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2025.

This Delta deal was found by Cheapflights users on 11/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/99:10 amPDX - LIH
1 stop13h 00mDelta
Sat 12/139:50 pmLIH - PDX
1 stop8h 38mDelta
Deal found 11/18$262
This Delta deal was found by Cheapflights users on 11/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/99:10 amPDX - LIH
1 stop13h 00mDelta
Tue 12/169:50 pmLIH - PDX
1 stop8h 38mDelta
Deal found 11/19$266
This Delta deal was found by Cheapflights users on 11/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/95:30 amPDX - LIH
1 stop16h 40mDelta
Sun 12/1410:55 pmLIH - PDX
2 stops14h 38mDelta
Deal found 11/18$267
This Delta deal was found by Cheapflights users on 11/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/117:10 amSEA - LIH
1 stop13h 23mDelta
Tue 12/2310:43 pmLIH - SEA
1 stop9h 52mDelta
Deal found 11/20$289
This Delta deal was found by Cheapflights users on 11/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:40 pmSEA - LIH
Nonstop6h 20mDelta
Sun 1/119:31 pmLIH - SEA
1 stop13h 26mDelta
Deal found 11/20$290
This Kiwi.com deal was found by Cheapflights users on 11/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/98:31 pmSEA - LIH
1 stop16h 22mAlaska Airlines
Mon 12/1511:25 pmLIH - SEA
Nonstop5h 50mAlaska Airlines
Deal found 11/19$298
This Delta deal was found by Cheapflights users on 11/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/93:50 pmSEA - LIH
Nonstop6h 20mDelta
Sun 12/149:50 pmLIH - SEA
Nonstop5h 44mDelta
Deal found 11/19$303
This Delta deal was found by Cheapflights users on 11/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/123:50 pmSEA - LIH
Nonstop6h 20mDelta
Fri 12/199:50 pmLIH - SEA
Nonstop5h 44mDelta
Deal found 11/19$306
This Kiwi.com deal was found by Cheapflights users on 11/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/89:59 pmSEA - LIH
1 stop15h 45mAlaska Airlines
Thu 12/1111:25 pmLIH - SEA
Nonstop5h 50mAlaska Airlines
Deal found 11/19$307
This Delta deal was found by Cheapflights users on 11/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/93:50 pmSEA - LIH
Nonstop6h 20mDelta
Fri 12/1210:55 pmLIH - SEA
1 stop13h 49mDelta
Deal found 11/19$313
This Delta deal was found by Cheapflights users on 11/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/135:30 amPDX - LIH
2 stops15h 03mDelta
Tue 12/239:20 pmLIH - PDX
1 stop9h 18mDelta
Deal found 11/21$321
This Delta deal was found by Cheapflights users on 11/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/123:50 pmSEA - LIH
Nonstop6h 20mDelta
Wed 12/249:20 pmLIH - SEA
Nonstop5h 40mDelta
Deal found 11/20$330

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington 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 November 21, 2025.
Use the filters below to find and compare flights from Washington to Kaua'i that are best for you.

Fly from

Washington

Fly to

Kaua'i

Route

Depart

Return

Price

PortlandLihue

PDX - LIH

PDXLIH

Portland

Tue 12/9

9:10 am-8:10 pm

1 stop13h 00m

Lihue

Tue 12/16

9:50 pm-8:28 am

1 stop8h 38m

$266

PortlandLihue

PDX - LIH

PDXLIH

Portland

Tue 12/9

5:30 am-6:33 pm

2 stops15h 03m

Lihue

Sun 12/14

10:55 pm-3:33 pm

2 stops14h 38m

$273

PortlandLihue

PDX - LIH

PDXLIH

Portland

Fri 1/9

5:30 am-6:21 pm

2 stops14h 51m

Lihue

Tue 1/13

10:45 pm-10:07 am

1 stop9h 22m

$286

PascoLihue

PSC - LIH

PSCLIH

Pasco Tri Cities

Wed 2/4

5:05 am-6:31 pm

2 stops15h 26m

Lihue

Mon 2/9

10:45 pm-10:48 am

1 stop10h 03m

$291

PortlandLihue

PDX - LIH

PDXLIH

Portland

Fri 1/23

5:30 am-6:31 pm

2 stops15h 01m

Lihue

Wed 1/28

10:45 pm-10:07 am

1 stop9h 22m

$291

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Thu 2/19

3:35 pm-7:55 pm

Nonstop6h 20m

Lihue

Tue 2/24

9:31 pm-12:59 pm

1 stop13h 28m

$298

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Mon 2/9

3:35 pm-7:55 pm

Nonstop6h 20m

Lihue

Sun 2/15

9:31 pm-12:59 pm

1 stop13h 28m

$300

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Wed 12/31

1:40 pm-6:00 pm

Nonstop6h 20m

Lihue

Sun 1/11

9:31 pm-12:57 pm

1 stop13h 26m

$300

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

Mon 1/12

1:20 pm-7:55 pm

1 stop8h 35m

Lihue

Tue 1/20

10:45 pm-12:37 pm

1 stop11h 52m

$306

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

Tue 1/20

5:05 am-6:31 pm

2 stops15h 26m

Lihue

Tue 1/27

10:45 pm-12:37 pm

1 stop11h 52m

$311

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 60 results
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Best time to book a flight from Washington to Kaua'i

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

What is the cheapest month to book a flight from State of Washington to Kaua'i?

Currently, September is the cheapest month in which you can book a flight from State of Washington to Kaua'i (average of $189). Flying from State of Washington to Kaua'i in March is currently the most expensive (average of $369). 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 WA to FUS?

Find hourly flight availability from Washington 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 November 21, 2025.

It’s typically best to fly out from State of Washington to Kaua'i in the evening. Doing so could potentially save you 46% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from State of Washington to Kaua'i?

Use this chart to determine the cheapest time to fly round-trip from Washington to Kaua'i. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their State of Washington to Kaua'i flight should consider departing on Wednesday evenings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from State of Washington to Kaua'i

Explore weekly flight availability from Washington to Kaua'i. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 21, 2025.

The most flights from USWA to zzFUS are scheduled on a Friday (10 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (5 on average).

Related info for your journey

Find useful and relevant information for your journey from Washington 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 popular is this State of Washington to Kaua'i flight route?

    Within the past month, 8 users have taken a look at flights from Washington to Kaua'i.

  • How long is the flight from State of Washington to Kaua'i?

    Delta and Alaska Airlines can get you from State of Washington to Kaua'i in just under 13h. Your travel time can differ by up to 3h 14m. State of Washington and Kaua'i are separated by a distance of 2628 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from State of Washington to Kaua'i one-way?

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $119. American Airlines flights start at $119 while deals on Southwest start at $119 one-way.

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

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

  • How can I find direct flights from Washington 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 to Kaua'i.

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

    Yes. Cheapflights offers flight deals from Washington 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 State of Washington to Kaua'i?

    Currently, September is the cheapest month in which you can book a flight from State of Washington to Kaua'i (average of $189). Flying from State of Washington to Kaua'i in March is currently the most expensive (average of $369). 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 6 airlines flying from Washington to Kaua'i

Discover the top 6 airlines that operate flights from Washington 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 November 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$249Average$674FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$257Average$472FlexibilityNo cancel feeOn-time69%
DeltaCheapest$294Average$556FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$299Average$681FlexibilityNo cancel feeOn-time85%
American AirlinesCheapest$305Average$554FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$348Average$632FlexibilityNo cancel feeOn-time75%

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