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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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LIH
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
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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 October 16, 2025.

This Delta deal was found by Cheapflights users on 10/16. 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
Sat 12/209:23 pmLIH - SEA
Nonstop5h 42mDelta
Deal found 10/16$316
This Alaska Airlines deal was found by Cheapflights users on 10/16. 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 12/59:39 pmSEA - LIH
1 stop16h 30mAlaska Airlines
Fri 12/1911:23 pmLIH - SEA
Nonstop5h 54mAlaska Airlines
Deal found 10/16$318
This American Airlines deal was found by Cheapflights users on 10/16. 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 12/66:50 pmSEA - LIH
1 stop20h 34mAmerican Airlines
Sun 12/710:44 pmLIH - SEA
1 stop10h 11mAmerican Airlines
Deal found 10/16$328
This American Airlines deal was found by Cheapflights users on 10/15. 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 11/86:41 pmSEA - LIH
1 stop20h 37mAmerican Airlines
Thu 11/1310:39 pmLIH - SEA
1 stop10h 14mAmerican Airlines
Deal found 10/15$333
This Delta deal was found by Cheapflights users on 10/16. 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 12/63:50 pmSEA - LIH
Nonstop6h 20mDelta
Sat 12/139:50 pmLIH - SEA
Nonstop5h 44mDelta
Deal found 10/16$336
This Alaska Airlines deal was found by Cheapflights users on 10/15. 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.
Sat 11/87:57 pmSEA - LIH
1 stop17h 11mAlaska Airlines
Thu 11/1311:25 pmLIH - SEA
Nonstop5h 50mAlaska Airlines
Deal found 10/15$338
This Delta deal was found by Cheapflights users on 10/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/93:52 pmSEA - LIH
Nonstop6h 12mDelta
Thu 11/1310:55 pmLIH - SEA
1 stop9h 30mDelta
Deal found 10/14$340
This KAYAK deal was found by Cheapflights users on 10/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/306:10 pmSEA - LIH
Nonstop6h 22mAlaska Airlines
Sun 12/72:20 pmLIH - SEA
1 stop7h 26mAlaska Airlines
Deal found 10/16$343
This KAYAK deal was found by Cheapflights users on 10/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/99:32 pmSEA - LIH
1 stop15h 14mAlaska Airlines
Mon 11/178:02 pmLIH - SEA
1 stop9h 38mAlaska Airlines
Deal found 10/14$344
This Delta deal was found by Cheapflights users on 10/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/53:53 pmSEA - LIH
Nonstop6h 12mDelta
Sun 11/99:40 pmLIH - SEA
Nonstop5h 47mDelta
Deal found 10/14$346
This Alaska Airlines deal was found by Cheapflights users on 10/15. 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 11/56:07 pmSEA - LIH
Nonstop6h 18mAlaska Airlines
Sun 11/911:25 pmLIH - SEA
Nonstop5h 50mAlaska Airlines
Deal found 10/15$348

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 October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$311
(Alaska Airlines)

One-way from

$139
(United Airlines)

Popular in

June

Cheapest in

January

Average price

$534

Good round-trip deal

$396 or less

Good one-way deal

$199 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 Seattle/Tacoma Intl to Kaua'i
Search Deals
One-way flight from Seattle/Tacoma Intl to Kaua'i
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($56 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Seattle/Tacoma Intl to Kaua'i.
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to Kaua'i.
Search Deals

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 October 16, 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

Sat 12/13

3:50 pm-8:10 pm

Nonstop6h 20m

Lihue

Sun 12/14

9:50 pm-5:34 am

Nonstop5h 44m

$316

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Sat 11/29

2:40 pm-8:30 pm

1 stop7h 50m

Lihue

Sat 12/6

4:20 pm-5:15 am

1 stop10h 55m

$368

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Fri 11/7

7:57 am-4:32 pm

1 stop10h 35m

Lihue

Tue 11/11

8:02 pm-7:40 am

1 stop9h 38m

$388

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Wed 12/31

5:50 pm-10:23 pm

Nonstop6h 33m

Lihue

Tue 1/6

1:19 pm-9:04 pm

Nonstop5h 45m

$390

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Thu 1/1

9:55 am-5:03 pm

1 stop9h 08m

Lihue

Sat 1/31

1:39 pm-11:31 pm

1 stop7h 52m

$390

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Wed 11/12

6:07 pm-10:25 pm

Nonstop6h 18m

Lihue

Fri 11/14

5:02 pm-5:17 am

1 stop10h 15m

$391

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Thu 10/30

3:53 pm-7:05 pm

Nonstop6h 12m

Lihue

Wed 11/5

10:40 pm-6:35 am

Nonstop5h 55m

$438

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Thu 10/30

3:59 pm-10:15 pm

1 stop9h 16m

Lihue

Thu 11/6

10:40 pm-6:35 am

Nonstop5h 55m

$463

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Fri 10/31

3:53 pm-7:05 pm

Nonstop6h 12m

Lihue

Wed 11/5

10:40 pm-6:35 am

Nonstop5h 55m

$468

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Wed 12/17

3:50 pm-8:10 pm

Nonstop6h 20m

Lihue

Wed 12/24

9:23 pm-5:05 am

Nonstop5h 42m

$470

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

Showing 1-10 of 20 results
1
2

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 $218). Flying from Seattle to Kaua'i in March is currently the most expensive (average of $377). 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 October 16, 2025.

It’s optimal to fly from Seattle to Kaua'i in the evening. By choosing this option you can save up to 58% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from Seattle to Kaua'i?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Kaua'i. Price data was last updated on October 12, 2025.

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

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 October 16, 2025.

The most flights from SEA to zzFUS are scheduled on a Wednesday (11 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 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 October 16, 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
11,102 reviews

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Alaska Airlines
8.0
Very good
11,102 reviews
Alaska Airlines
8.0
Very good
11,102 reviews

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Southwest
8.0
Very good
4,241 reviews
Alaska Airlines
8.0
Very good
11,102 reviews

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Delta
7.9
Good
7,980 reviews
Alaska Airlines
8.0
Very good
11,102 reviews

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Hawaiian Airlines
7.8
Good
2,781 reviews
Alaska Airlines
8.0
Very good
11,102 reviews

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
American Airlines
7.2
Good
11,040 reviews
Alaska Airlines
8.0
Very good
11,102 reviews

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.

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 8 times in the past calendar month.

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

    Delta and Alaska Airlines can get you from Seattle to Kaua'i in just under 6h 20m. Your travel time can differ by up to 1h 30m. Airlines will cover a distance of 2698 mi. This flight may include one or multiple stops.

  • 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%), Delta( 83%).

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

    Looking at all options, your cheapest flight can be booked for $155. While the most popular route (Seattle/Tacoma Intl - Lihue) can be booked for $258 on average, our data indicates $1,021 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 $218). Flying from Seattle to Kaua'i in March is currently the most expensive (average of $377). 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 October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$249Average$647FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$257Average$437FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$275Average$554FlexibilityNo cancel feeOn-time71%
DeltaCheapest$284Average$549FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$295Average$602FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$357Average$610FlexibilityNo cancel feeOn-time75%

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