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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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LIH
Jan 13 — Jan 201
Tue 1/13
Tue 1/20
1 adult, Economy
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Cheap 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 December 14, 2025.

This Delta deal was found by Cheapflights users on 12/13. 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.
Wed 12/311:40 pmSEA - LIH
Nonstop6h 20mDelta
Sun 1/1110:45 pmLIH - SEA
Nonstop5h 42mDelta
Deal found 12/13$410
This Alaska Airlines deal was found by Cheapflights users on 12/14. 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.
Wed 12/315:50 pmSEA - LIH
Nonstop6h 33mMultiple Airlines
Sun 1/1112:01 pmLIH - SEA
1 stop21h 06mMultiple Airlines
Deal found 12/14$451
This American Airlines deal was found by Cheapflights users on 12/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:57 amSEA - LIH
1 stop10h 42mAmerican Airlines
Sun 1/1111:00 pmLIH - SEA
1 stop17h 05mAmerican Airlines
Deal found 12/12$465
This United Airlines deal was found by Cheapflights users on 12/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/165:30 amSEA - LIH
1 stop9h 43mUnited Airlines
Mon 2/92:10 pmLIH - SEA
1 stop8h 46mUnited Airlines
Deal found 12/13$467
This Alaska Airlines deal was found by Cheapflights users on 12/14. 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.
Wed 12/315:50 pmSEA - LIH
Nonstop6h 33mAlaska Airlines
Sun 1/1110:20 pmLIH - SEA
Nonstop5h 51mAlaska Airlines
Deal found 12/14$468
This Alaska Airlines deal was found by Cheapflights users on 12/13. 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.
Tue 12/305:50 pmSEA - LIH
Nonstop6h 33mAlaska Airlines
Wed 12/3111:23 pmLIH - SEA
Nonstop5h 54mAlaska Airlines
Deal found 12/13$498
This Alaska Airlines deal was found by Cheapflights users on 12/13. 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.
Tue 12/165:54 pmSEA - LIH
Nonstop6h 31mAlaska Airlines
Mon 2/92:50 pmLIH - SEA
1 stop26h 15mAlaska Airlines
Deal found 12/13$501
This Alaska Airlines deal was found by Cheapflights users on 12/13. 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 12/285:50 pmSEA - LIH
Nonstop6h 33mAlaska Airlines
Mon 12/2911:23 pmLIH - SEA
Nonstop5h 54mAlaska Airlines
Deal found 12/13$528
This Delta deal was found by Cheapflights users on 12/13. 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.
Mon 12/291:40 pmSEA - LIH
Nonstop6h 20mDelta
Wed 12/316:10 pmLIH - SEA
1 stop11h 20mDelta
Deal found 12/13$535
This United Airlines deal was found by Cheapflights users on 12/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/145:30 amSEA - LIH
1 stop9h 43mUnited Airlines
Thu 12/182:29 pmLIH - SEA
1 stop8h 30mUnited Airlines
Deal found 12/14$567
This Alaska Airlines deal was found by Cheapflights users on 12/12. 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.
Tue 12/308:03 amPDX - LIH
Nonstop6h 16mAlaska Airlines
Wed 1/712:29 pmLIH - PDX
Nonstop5h 35mAlaska Airlines
Deal found 12/12$588
This Alaska Airlines deal was found by Cheapflights users on 12/12. 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.
Mon 12/297:05 amPDX - LIH
1 stop7h 59mMultiple Airlines
Wed 1/712:29 pmLIH - PDX
Nonstop5h 35mMultiple Airlines
Deal found 12/12$613

Find 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 December 14, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$278
(Alaska Airlines)

One-way from

$119
(Delta)

Popular in

December

Cheapest in

January

Average price

$689

Good round-trip deal

$378 or less

Good one-way deal

$379 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Lihue flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Lihue flights.
Search Deals
From Washington to Kaua'i
Search Deals
One-way flight from Washington to Kaua'i
Search Deals
High demand for flights, 9% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Washington to Kaua'i.
Search Deals
Price to beat on a one-way flight from Washington to Kaua'i.
Search Deals

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 December 14, 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

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

Mon 2/23

8:10 am-10:18 pm

1 stop16h 08m

Lihue

Thu 3/5

11:19 pm-11:06 am

1 stop9h 47m

$302

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

Sun 2/8

7:20 am-6:46 pm

1 stop13h 26m

Lihue

Sun 2/15

10:55 pm-10:37 am

1 stop9h 42m

$306

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

Tue 1/20

11:25 am-7:55 pm

1 stop10h 30m

Lihue

Tue 1/27

10:45 pm-12:37 pm

1 stop11h 52m

$306

PortlandLihue

PDX - LIH

PDXLIH

Portland

Sat 2/28

1:40 pm-10:44 pm

1 stop11h 04m

Lihue

Mon 3/9

11:13 pm-12:33 pm

1 stop10h 20m

$314

PortlandLihue

PDX - LIH

PDXLIH

Portland

Sat 1/10

5:35 am-12:54 pm

1 stop9h 19m

Lihue

Sat 1/17

11:50 pm-12:34 pm

1 stop10h 44m

$317

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Sun 2/8

2:30 pm-6:46 pm

Nonstop6h 16m

Lihue

Fri 2/13

9:45 pm-12:58 pm

1 stop13h 13m

$318

PortlandLihue

PDX - LIH

PDXLIH

Portland

Mon 1/5

7:30 am-5:47 pm

2 stops12h 17m

Lihue

Sat 1/17

11:50 pm-12:34 pm

1 stop10h 44m

$320

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

Tue 1/6

5:05 am-6:21 pm

2 stops15h 16m

Lihue

Thu 1/22

10:45 pm-8:40 am

1 stop7h 55m

$321

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

Tue 1/27

9:20 am-7:55 pm

1 stop12h 35m

Lihue

Tue 2/3

10:35 pm-2:55 pm

2 stops14h 20m

$321

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Sun 3/8

6:30 pm-8:57 am

1 stop17h 27m

Lihue

Mon 3/16

4:27 pm-5:30 am

1 stop10h 03m

$328

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 53 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 August is currently the most expensive (average of $357). 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 December 14, 2025.

It’s typically best to fly out from State of Washington to Kaua'i in the evening. Doing so could potentially save you 47% 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 December 14, 2025.

The most flights from USWA to zzFUS are scheduled on a Tuesday (10 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (4 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, 7 users have taken a look at flights from Washington to Kaua'i.

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

    Alaska Airlines, Delta, and United Airlines can get you from State of Washington to Kaua'i in just under 11h 04m. Your travel time can differ by up to 5h 04m. 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 Southwest, which is currently one of the cheapest options available, starting at $118. Delta flights start at $159 while deals on Alaska Airlines start at $179 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 August is currently the most expensive (average of $357). 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 December 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$249Average$668FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$257Average$503FlexibilityNo cancel feeOn-time69%
DeltaCheapest$276Average$564FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$296Average$688FlexibilityNo cancel feeOn-time85%
American AirlinesCheapest$305Average$554FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$321Average$633FlexibilityNo cancel feeOn-time75%

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