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Kaua'i

$139+ Cheap flights from Seattle (SEA) 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 8/13. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LIH
Jul 1 — Jul 81
Tue 7/1
Tue 7/8
1 adult, Economy
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Cheap flight deals from Seattle to Kaua'i

Keep the following information in mind while searching for Seattle to Kaua'i flight deals. Data was last updated June 26, 2025.

Round-trip from

$380
(Alaska Airlines)

One-way from

$139
(United Airlines)

Popular in

February

Cheapest in

January

Average price

$620

Good round-trip deal

$443 or less

Good one-way deal

$299 or less
From Seattle/Tacoma Intl to Kaua'i
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One-way flight from Seattle/Tacoma Intl to Kaua'i
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High demand for flights, 2% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to Kaua'i.
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Price to beat on a one-way flight from Seattle/Tacoma Intl to Kaua'i.
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Find flight deals from Seattle to Kaua'i

Cheapest flights from Seattle to Kaua'i
Explore the most affordable flight options available from Seattle to Kaua'i. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 26, 2025.

This Alaska Airlines deal was found by Cheapflights users on 6/26. 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 8/258:07 amSEA - LIH
1 stop8h 49mAlaska Airlines
Thu 8/284:28 pmLIH - SEA
1 stop10h 52mAlaska Airlines
Deal found 6/26$380
This Southwest deal was found by Cheapflights users on 6/24. 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.
Tue 10/2810:10 amSEA - LIH
2 stops14h 15mSouthwest
Tue 11/410:00 amLIH - SEA
1 stop8h 40mSouthwest
Deal found 6/24$390
This Delta deal was found by Cheapflights users on 6/24. 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 8/143:54 pmSEA - LIH
Nonstop6h 09mDelta
Wed 8/208:28 pmLIH - SEA
1 stop10h 17mDelta
Deal found 6/24$391
This American Airlines deal was found by Cheapflights users on 6/25. 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.
Sat 10/256:06 pmSEA - LIH
1 stop21h 04mAmerican Airlines
Sun 11/210:11 pmLIH - SEA
1 stop10h 37mAmerican Airlines
Deal found 6/25$397
This United Airlines deal was found by Cheapflights users on 6/25. 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.
Sat 11/1512:41 pmSEA - LIH
2 stops11h 40mUnited Airlines
Sat 11/2211:50 pmLIH - SEA
1 stop10h 28mUnited Airlines
Deal found 6/25$422
This CheapTickets.ch deal was found by Cheapflights users on 6/24. 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 CheapTickets.ch is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/59:44 pmSEA - LIH
1 stop14h 56mHawaiian Airlines
Mon 8/2510:30 pmLIH - SEA
Nonstop5h 45mHawaiian Airlines
Deal found 6/24$459
This Kiwi.com deal was found by Cheapflights users on 6/26. 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.
Thu 8/1412:05 pmSEA - LIH
2 stops10h 22mMultiple Airlines
Wed 8/206:59 pmLIH - SEA
1 stop8h 01mMultiple Airlines
Deal found 6/26$547

Cheapflights Fare Finder

Customize your flight search to find flights from Seattle 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 June 26, 2025.
Use the filters below to find and compare flights from Seattle to Kaua'i that are best for you.

Fly from

Seattle

Fly to

Kaua'i

Route

Depart

Return

Price

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Mon 8/25

8:07 am-1:56 pm

1 stop8h 49m

Lihue

Thu 8/28

4:28 pm-6:20 am

1 stop10h 52m

$380

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Thu 8/14

3:54 pm-7:03 pm

Nonstop6h 09m

Lihue

Wed 8/20

8:28 pm-9:45 am

1 stop10h 17m

$391

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Mon 8/25

10:40 am-6:10 pm

2 stops10h 30m

Lihue

Mon 9/8

10:00 am-11:05 pm

1 stop10h 05m

$404

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Mon 9/15

2:29 pm-7:58 pm

1 stop8h 29m

Lihue

Mon 9/22

1:13 pm-1:28 pm

2 stops21h 15m

$443

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Tue 8/5

9:44 pm-9:40 am

1 stop14h 56m

Lihue

Mon 8/25

10:30 pm-7:15 am

Nonstop5h 45m

$459

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Thu 8/14

12:05 pm-7:27 pm

2 stops10h 22m

Lihue

Wed 8/20

6:59 pm-6:00 am

1 stop8h 01m

$547

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Wed 9/10

7:25 am-10:12 pm

2 stops17h 47m

Lihue

Mon 9/15

9:40 pm-10:26 am

1 stop9h 46m

$589

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Wed 8/13

12:40 pm-7:38 pm

1 stop9h 58m

$139

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Wed 8/13

3:54 pm-7:03 pm

Nonstop6h 09m

$169

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Sun 9/21

7:59 pm-11:56 am

1 stop18h 57m

$179

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/24

Showing 1-10 of 14 results
1
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Best time to book a flight from Seattle to Kaua'i

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

What is the cheapest month to book a flight from Seattle to Kaua'i?

Currently, January is the cheapest month in which you can book a flight from Seattle to Kaua'i (average of $440). Flying from Seattle 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 SEA to FUS?

Find hourly flight availability from Seattle 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 June 26, 2025.

When flying from Seattle to Kaua'i, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Seattle to Kaua'i

Explore weekly flight availability from Seattle 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 June 26, 2025.

The most flights from SEA to zzFUS are scheduled on a Monday (10 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (7 on average).

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 June 26, 2025.
Read through reviews of airlines operating flights from Seattle to Kaua'i, such as Alaska Airlines, Southwest, and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Southwest
8.0
Very good
4,276 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Delta
8.0
Very good
7,963 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Hawaiian Airlines
7.8
Good
2,522 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
United Airlines
7.4
Good
8,838 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Related info for your journey

Find useful and relevant information for your journey from Seattle 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 airport do you fly from for flights from Seattle to Kaua'i?

    If you book a flight to Kaua'i from Seattle, you will be flying from Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle.

  • How popular is this Seattle to Kaua'i flight route?

    Flights from Seattle/Tacoma Intl to Kaua'i have been viewed 4 times in the past calendar month.

  • What are the cheapest airlines to fly from Seattle 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 $139. Delta flights start at $169 while deals on Alaska Airlines start at $179 one-way.

  • What are the most reliable airlines from Seattle to Kaua'i?

    Before booking your flight to Kaua'i from Seattle, check out the most reliable airlines to get you to your destination on time: KLM (88%), Delta (88%), Virgin Atlantic( 88%).

  • What are the cheapest flights from Seattle to Kaua'i?

    Looking at all options, your cheapest flight can be booked for $254. While the most popular route (Seattle/Tacoma Intl - Lihue) can be booked for $338 on average our data indicates $1,192 when flying from Seattle to Kaua'i.

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

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

  • How can I find direct flights from Seattle to Kaua'i?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Kaua'i.

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

    Yes. Cheapflights offers flight deals from Seattle 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 Seattle to Kaua'i?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Kaua'i (average of $440). Flying from Seattle 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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Alternative routes for Seattle to Kaua'i

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Seattle to Kaua'i

Discover the top 6 airlines that operate flights from Seattle 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 June 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$209Average$465FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$249Average$604FlexibilityNo cancel feeOn-time63%
DeltaCheapest$270Average$516FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$275Average$512FlexibilityNo cancel feeOn-time71%
Hawaiian AirlinesCheapest$283Average$578FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$330Average$602FlexibilityNo cancel feeOn-time75%

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