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Kaua'i

$149+ 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 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LIH
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
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 August 20, 2025.

Round-trip from

$358
(Delta)

One-way from

$149
(Southwest)

Popular in

July

Cheapest in

January

Average price

$617

Good round-trip deal

$471 or less

Good one-way deal

$303 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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Highest demand for flights based on searches. 11% potential increase in price ($70 potential increase over avg. RT price).
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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 August 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 August 20, 2025.

This Delta deal was found by Cheapflights users on 8/20. 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 9/113:55 pmSEA - LIH
Nonstop6h 04mDelta
Wed 9/179:40 pmLIH - SEA
Nonstop5h 55mDelta
Deal found 8/20$358
This Alaska Airlines deal was found by Cheapflights users on 8/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/116:19 pmSEA - LIH
Nonstop6h 11mAlaska Airlines
Wed 9/1711:01 amLIH - SEA
1 stop17h 14mAlaska Airlines
Deal found 8/19$363
This Delta deal was found by Cheapflights users on 8/18. 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.
Mon 11/310:10 amSEA - LIH
1 stop9h 43mDelta
Mon 11/1010:45 pmLIH - SEA
Nonstop5h 56mDelta
Deal found 8/18$368
This Alaska Airlines deal was found by Cheapflights users on 8/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/106:32 pmSEA - LIH
1 stop21h 17mAlaska Airlines
Wed 12/175:00 pmLIH - SEA
1 stop10h 05mAlaska Airlines
Deal found 8/19$369
This Alaska Airlines deal was found by Cheapflights users on 8/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/173:55 pmSEA - LIH
1 stop8h 25mAlaska Airlines
Sun 11/2311:32 pmLIH - SEA
Nonstop5h 48mAlaska Airlines
Deal found 8/19$373
This Delta deal was found by Cheapflights users on 8/19. 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 11/43:53 pmSEA - LIH
Nonstop6h 12mDelta
Mon 11/1010:45 pmLIH - SEA
Nonstop5h 56mDelta
Deal found 8/19$378
This Alaska Airlines deal was found by Cheapflights users on 8/18. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/186:07 pmSEA - LIH
Nonstop6h 18mAlaska Airlines
Mon 11/241:20 pmLIH - SEA
1 stop16h 25mAlaska Airlines
Deal found 8/18$386
This Delta deal was found by Cheapflights users on 8/19. 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 10/313:53 pmSEA - LIH
Nonstop6h 12mDelta
Mon 11/1010:45 pmLIH - SEA
Nonstop5h 56mDelta
Deal found 8/19$388
This Alaska Airlines deal was found by Cheapflights users on 8/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/316:05 pmSEA - LIH
Nonstop6h 18mAlaska Airlines
Tue 11/46:20 pmLIH - SEA
1 stop9h 15mAlaska Airlines
Deal found 8/19$393

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 August 20, 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

Thu 9/11

3:55 pm-6:59 pm

Nonstop6h 04m

Lihue

Wed 9/17

9:40 pm-6:35 am

Nonstop5h 55m

$358

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Tue 9/30

6:19 pm-9:30 pm

Nonstop6h 11m

Lihue

Tue 10/7

10:31 pm-7:15 am

Nonstop5h 44m

$358

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Tue 9/30

6:19 pm-9:30 pm

Nonstop6h 11m

Lihue

Wed 10/8

10:31 pm-7:15 am

Nonstop5h 44m

$358

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Tue 9/9

3:54 pm-7:03 pm

Nonstop6h 09m

Lihue

Tue 9/16

9:40 pm-6:35 am

Nonstop5h 55m

$358

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Wed 9/10

3:54 pm-7:03 pm

Nonstop6h 09m

Lihue

Wed 9/17

9:40 pm-6:35 am

Nonstop5h 55m

$358

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Thu 9/11

3:55 pm-6:59 pm

Nonstop6h 04m

Lihue

Mon 9/15

9:40 pm-6:35 am

Nonstop5h 55m

$358

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Tue 9/16

3:55 pm-6:59 pm

Nonstop6h 04m

Lihue

Tue 9/23

9:40 pm-6:35 am

Nonstop5h 55m

$358

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Wed 9/17

3:55 pm-6:59 pm

Nonstop6h 04m

Lihue

Tue 9/23

9:40 pm-6:35 am

Nonstop5h 55m

$358

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Thu 9/18

3:55 pm-6:59 pm

Nonstop6h 04m

Lihue

Thu 9/25

9:40 pm-6:35 am

Nonstop5h 55m

$358

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Mon 11/17

9:25 am-4:10 pm

1 stop8h 45m

$149

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 17 results
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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 August 20, 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 August 20, 2025.

The most flights from SEA to zzFUS are scheduled on a Wednesday (12 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (6 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 August 20, 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

Boarding

8.1

Crew

8.5

Entertainment

7.0

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,982 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,670 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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 6 times in the past calendar month.

  • How long is the flight from Seattle to Kaua'i?

    Delta, Alaska Airlines, and Hawaiian Airlines can get you from Seattle to Kaua'i in just under 6h 04m. Your travel time will be generally consistent. Airlines will cover a distance of 2698 mi. All flights are typically nonstop.

  • 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 (83%), Air France (83%), Scandinavian Airlines( 83%).

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

    Looking at all options, your cheapest flight can be booked for $179. While the most popular route (Seattle/Tacoma Intl - Lihue) can be booked for $338 on average our data indicates $467 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 August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$219Average$465FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$249Average$604FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$275Average$493FlexibilityNo cancel feeOn-time71%
DeltaCheapest$281Average$540FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$294Average$588FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$354Average$608FlexibilityNo cancel feeOn-time75%

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