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Kaua'i

$138+ 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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LIH
May 17 — May 241
Sun 5/17
Sun 5/24
1 adult, Economy
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Cheap 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 April 17, 2026.

This United Airlines deal was found by Cheapflights users on 4/13. 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.
Wed 5/65:00 am
SEA
-
LIH
1 stop9h 29m
United Airlines
Tue 5/121:16 pm
LIH
-
SEA
1 stop8h 56m
United Airlines
Deal found 4/13$326
This United Airlines deal was found by Cheapflights users on 4/14. 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.
Wed 5/135:00 am
SEA
-
LIH
1 stop9h 29m
United Airlines
Wed 5/201:16 pm
LIH
-
SEA
1 stop8h 56m
United Airlines
Deal found 4/14$345
This Southwest deal was found by Cheapflights users on 4/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/57:35 am
SEA
-
LIH
1 stop11h 35m
Southwest
Tue 5/129:10 pm
LIH
-
SEA
1 stop8h 30m
Southwest
Deal found 4/14$346
This Southwest deal was found by Cheapflights users on 4/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/117:20 am
SEA
-
LIH
1 stop11h 50m
Southwest
Mon 5/189:10 pm
LIH
-
SEA
1 stop8h 30m
Southwest
Deal found 4/13$351
This Delta deal was found by Cheapflights users on 4/16. 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.
Thu 5/73:55 pm
SEA
-
LIH
Nonstop6h 11m
Delta
Mon 5/119:55 pm
LIH
-
SEA
Nonstop5h 50m
Delta
Deal found 4/16$357
This United Airlines deal was found by Cheapflights users on 4/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/115:00 am
SEA
-
LIH
1 stop9h 29m
United Airlines
Thu 5/141:16 pm
LIH
-
SEA
1 stop8h 56m
United Airlines
Deal found 4/16$365
This Delta deal was found by Cheapflights users on 4/13. 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 5/42:30 pm
SEA
-
LIH
Nonstop6h 10m
Delta
Tue 5/128:40 pm
LIH
-
SEA
1 stop11h 15m
Delta
Deal found 4/13$366
This Delta deal was found by Cheapflights users on 4/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/183:55 pm
SEA
-
LIH
Nonstop6h 11m
Delta
Tue 5/268:40 pm
LIH
-
SEA
1 stop11h 15m
Delta
Deal found 4/15$367
This United Airlines deal was found by Cheapflights users on 4/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/255:00 am
SEA
-
LIH
1 stop9h 55m
United Airlines
Thu 5/281:17 pm
LIH
-
SEA
1 stop9h 12m
United Airlines
Deal found 4/16$368
This Delta deal was found by Cheapflights users on 4/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/610:15 am
SEA
-
LIH
1 stop11h 25m
Delta
Wed 5/138:40 pm
LIH
-
SEA
1 stop11h 15m
Delta
Deal found 4/12$376
This Delta deal was found by Cheapflights users on 4/16. 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 5/193:55 pm
SEA
-
LIH
Nonstop6h 11m
Delta
Mon 5/259:55 pm
LIH
-
SEA
Nonstop5h 50m
Delta
Deal found 4/16$377

Find 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 April 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$326
(United Airlines)

One-way from

$138
(United Airlines)

Popular in

July

Cheapest in

January

Average price

$597

Good round-trip deal

$530 or less

Good one-way deal

$297 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. 17% potential increase in price ($123 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
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 April 17, 2026.
Use the filters below to find and compare flights from Seattle to Kaua'i that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Tue 5/5

5:30 am-6:05 pm

2 stops15h 35m

Lihue

Tue 5/12

9:10 pm-8:40 am

1 stop8h 30m

$374

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Tue 6/2

6:06 pm-9:26 pm

Nonstop6h 20m

Lihue

Thu 6/4

2:39 pm-6:29 am

1 stop12h 50m

$442

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Wed 5/6

2:30 pm-5:40 pm

Nonstop6h 10m

Lihue

Wed 5/13

9:55 pm-6:45 am

Nonstop5h 50m

$473

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Thu 5/21

10:20 am-4:31 pm

1 stop9h 11m

Lihue

Sat 5/23

8:45 pm-4:28 pm

1 stop16h 43m

$557

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Wed 8/12

7:40 am-4:10 pm

1 stop11h 30m

Lihue

Sun 8/16

9:25 pm-12:50 pm

2 stops12h 25m

$567
Quickest round-trip

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Tue 10/6

6:45 pm-9:56 pm

Nonstop6h 11m

Lihue

Mon 10/19

10:31 pm-7:16 am

Nonstop5h 45m

$569

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Wed 6/3

6:06 pm-9:26 pm

Nonstop6h 20m

Lihue

Sat 6/13

10:28 pm-7:12 am

Nonstop5h 44m

$573

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Mon 4/27

6:00 am-7:53 pm

2 stops16h 53m

Lihue

Mon 5/4

1:13 pm-1:12 am

1 stop8h 59m

$582

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Tue 5/5

6:02 pm-9:26 pm

Nonstop6h 24m

Lihue

Wed 5/6

1:47 pm-8:29 am

1 stop15h 42m

$592

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Thu 5/21

10:20 am-4:31 pm

1 stop9h 11m

Lihue

Sun 5/24

1:43 pm-11:59 pm

1 stop7h 16m

$592

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/13

Showing 1-10 of 20 resultsSorted by cheapest first
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, April is the cheapest month in which you can book a flight from Seattle to Kaua'i (average of $178). Flying from Seattle to Kaua'i in August is currently the most expensive (average of $337). 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 April 17, 2026.

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 April 17, 2026.

The most flights from SEA to zzFUS are scheduled on a Thursday (9 on average). You will have fewer flight options on Saturday, 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 April 17, 2026.
Read through reviews of airlines operating flights from Seattle to Kaua'i, such as Southwest,Alaska Airlines, andDelta. 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.
Southwest
8.0
Very good
4,328 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,328 reviews
Southwest
8.0
Very good
4,328 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Alaska Airlines
7.9
Good
12,250 reviews
Southwest
8.0
Very good
4,328 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,409 reviews
Southwest
8.0
Very good
4,328 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Hawaiian Airlines
7.8
Good
2,839 reviews
Southwest
8.0
Very good
4,328 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,600 reviews
Southwest
8.0
Very good
4,328 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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.

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

    Southwest and Delta can get you from Seattle to Kaua'i in just under 6h 10m. Your travel time can differ by up to 9h 25m. Airlines will cover a distance of 2698 mi. This flight may include one or multiple stops.

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

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $155. Alaska Airlines flights start at $208 while deals on United Airlines start at $208 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 (83%), Air France (82%), British Airways( 78%).

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

    Looking at all options, your cheapest flight can be booked for $247. While the most popular route (Seattle/Tacoma Intl - Lihue) can be booked for $357 on average, our data indicates $536 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, April is the cheapest month in which you can book a flight from Seattle to Kaua'i (average of $178). Flying from Seattle to Kaua'i in August is currently the most expensive (average of $337). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 7 airlines flying from Seattle to Kaua'i

Discover the top 7 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 April 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$219Average$597FlexibilityNo cancel feeOn-time85%
DeltaCheapest$233Average$511FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$245Average$517FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$247Average$406FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$256Average$503FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$289Average$612FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$317Average$693FlexibilityNo cancel feeOn-time63%

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