$145+ 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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LIH
Sep 20 — Sep 271
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Kaua'i with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Seattle to Kaua'i
Cheapest
Best
Last-minute
One-way
Cheapest flights from Seattle to Kaua'iExplore 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 21, 2026.
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 21, 2026.
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/305:35 am -
2 stops14h 30m
Thu 12/109:05 pm -
1 stop12h 55m
Deal found 8/19![Southwest logo]()
$389
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/143:35 pm -
1 stop8h 55m
Mon 11/2311:59 pm -
1 stop10h 21m
Deal found 8/19![United Airlines logo]()
$390
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/71:16 pm -
1 stop11h 14m
Sat 11/2111:59 pm -
1 stop10h 21m
Deal found 8/19![United Airlines logo]()
$392
This United Airlines deal was found by Cheapflights users on 8/16. 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.
Sat 10/313:35 pm -
1 stop8h 55m
Sun 11/81:46 pm -
1 stop9h 13m
Deal found 8/16![United Airlines logo]()
$396
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.
Thu 9/174:05 pm -
Nonstop6h 05m
Wed 9/239:54 pm -
Nonstop5h 51m
Deal found 8/18![Delta logo]()
$397
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/65:00 am -
1 stop9h 28m
Sat 12/1211:50 pm -
1 stop8h 31m
Deal found 8/19![United Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 8/17. 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 9/281:19 pm -
1 stop9h 25m
Thu 10/2212:50 pm -
1 stop9h 25m
Deal found 8/17![United Airlines logo]()
$400
This United Airlines deal was found by Cheapflights users on 8/17. 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.
Thu 12/105:00 am -
1 stop9h 28m
Tue 12/151:50 pm -
1 stop8h 43m
Deal found 8/17![United Airlines logo]()
$401
This Alaska Airlines deal was found by Cheapflights users on 8/17. 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 9/214:59 pm -
Nonstop6h 15m
Tue 9/293:45 pm -
1 stop18h 06m
Deal found 8/17![Alaska Airlines logo]()
$403
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.
Thu 9/179:59 am -
1 stop10h 40m
Thu 9/249:54 pm -
Nonstop5h 51m
Deal found 8/18![Delta logo]()
$406
Best flights from Seattle to Kaua'iDiscover carefully curated flight deals from Seattle to Kaua'i that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 21, 2026.
Discover carefully curated flight deals from Seattle to Kaua'i that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 21, 2026.
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 11/116:06 pm -
Nonstop6h 22m
Thu 11/1911:29 pm -
Nonstop5h 51m
Deal found 8/19![Alaska Airlines logo]()
$397
This Delta deal was found by Cheapflights users on 8/17. 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 10/194:00 pm -
Nonstop6h 14m
Mon 11/210:51 pm -
Nonstop5h 54m
Deal found 8/17![Delta logo]()
$397
This United Airlines deal was found by Cheapflights users on 8/16. 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 9/286:30 am -
2 stops16h 14m
Fri 10/211:00 pm -
1 stop10h 20m
Deal found 8/16![United Airlines logo]()
$406
This Southwest deal was found by Cheapflights users on 8/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/57:30 am -
2 stops16h 00m
Wed 11/117:10 pm -
2 stops12h 55m
Deal found 8/15![Southwest logo]()
$407
This Alaska Airlines deal was found by Cheapflights users on 8/15. 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 10/314:47 pm -
1 stop20h 43m
Sat 11/71:24 pm -
1 stop17h 44m
Deal found 8/15![Multiple Airlines logo]()
$446
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.
Tue 9/294:05 pm -
Nonstop6h 05m
Sun 10/48:45 pm -
1 stop10h 10m
Deal found 8/18![Delta logo]()
$436
This Alaska Airlines deal was found by Cheapflights users on 8/16. 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.
Sun 10/186:11 pm -
Nonstop6h 16m
Sun 10/2510:31 pm -
Nonstop5h 49m
Deal found 8/16![Alaska Airlines logo]()
$457
This Alaska Airlines deal was found by Cheapflights users on 8/17. 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 9/188:45 pm -
1 stop21h 57m
Fri 9/253:45 pm -
1 stop14h 23m
Deal found 8/17![Multiple Airlines logo]()
$458
This Delta deal was found by Cheapflights users on 8/15. 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.
Fri 9/259:59 am -
1 stop10h 40m
Fri 10/29:54 pm -
Nonstop5h 51m
Deal found 8/15![Delta logo]()
$466
This Alaska Airlines deal was found by Cheapflights users on 8/16. 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.
Tue 11/176:06 pm -
Nonstop6h 22m
Sun 11/2211:53 am -
Nonstop5h 50m
Deal found 8/16![Alaska Airlines logo]()
$467
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.
Sat 9/268:35 pm -
1 stop16h 35m
Sat 10/312:42 pm -
1 stop17h 27m
Deal found 8/18![Multiple Airlines logo]()
$476
Last-minute flights from Seattle to Kaua'iDiscover last-minute flight deals from Seattle to Kaua'i. Data last updated August 21, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Kaua'i. Data last updated August 21, 2026 and is based on user searches.
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1310:55 am -
1 stop11h 49m
Thu 9/2412:50 pm -
1 stop9h 25m
Deal found 8/18![United Airlines logo]()
$421
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/168:52 pm -
1 stop13h 48m
Mon 9/219:35 pm -
Nonstop5h 45m
Deal found 8/18![Multiple Airlines logo]()
$422
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.
Thu 9/174:05 pm -
Nonstop6h 05m
Mon 9/219:54 pm -
Nonstop5h 51m
Deal found 8/18![Delta logo]()
$397
This SmartFares 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/178:52 pm -
1 stop13h 48m
Wed 9/2311:13 am -
1 stop7h 16m
Deal found 8/18![Alaska Airlines logo]()
$412
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1810:55 am -
1 stop11h 49m
Mon 9/2110:48 pm -
1 stop9h 33m
Deal found 8/20![United Airlines logo]()
$420
This Alaska Airlines deal was found by Cheapflights users on 8/16. 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.
Mon 9/214:59 pm -
Nonstop6h 15m
Tue 9/293:45 pm -
1 stop18h 06m
Deal found 8/16![Alaska Airlines logo]()
$403
This Expedia deal was found by Cheapflights users on 8/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/244:59 pm -
Nonstop6h 15m
Mon 9/283:45 pm -
1 stop13h 23m
Deal found 8/16![Alaska Airlines logo]()
$407
This United Airlines deal was found by Cheapflights users on 8/17. 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 9/281:19 pm -
1 stop9h 25m
Thu 10/2212:50 pm -
1 stop9h 25m
Deal found 8/17![United Airlines logo]()
$400
This United Airlines deal was found by Cheapflights users on 8/17. 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 9/281:19 pm -
1 stop9h 25m
Mon 10/1911:00 pm -
1 stop10h 18m
Deal found 8/17![United Airlines logo]()
$423
One-way flights from Seattle to Kaua'iSearch for one-way flight options from Seattle to Kaua'i. Find affordable one-way fares based on user searches. Data last updated August 21, 2026.
Search for one-way flight options from Seattle to Kaua'i. Find affordable one-way fares based on user searches. Data last updated August 21, 2026.
This United Airlines deal was found by Cheapflights users on 8/16. 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 9/211:22 pm -
1 stop9h 22m
Deal found 8/16![United Airlines logo]()
$145
This United Airlines deal was found by Cheapflights users on 8/16. 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 11/1612:20 pm -
2 stops12h 10m
Deal found 8/16![United Airlines logo]()
$151
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/151:16 pm -
1 stop11h 14m
Deal found 8/20![United Airlines logo]()
$163
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/181:19 pm -
1 stop9h 25m
Deal found 8/19![United Airlines logo]()
$166
This United Airlines deal was found by Cheapflights users on 8/16. 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.
Thu 10/151:19 pm -
1 stop9h 25m
Deal found 8/16![United Airlines logo]()
$168
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1711:05 am -
2 stops12h 25m
Deal found 8/18![Southwest logo]()
$174
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/175:00 am -
1 stop9h 34m
Deal found 8/18![United Airlines logo]()
$187
This United Airlines deal was found by Cheapflights users on 8/16. 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.
Sun 9/2010:55 am -
1 stop11h 49m
Deal found 8/16![United Airlines logo]()
$189
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/191:16 pm -
1 stop9h 28m
Deal found 8/20![United Airlines logo]()
$196
This United Airlines deal was found by Cheapflights users on 8/16. 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.
Fri 10/161:19 pm -
1 stop9h 25m
Deal found 8/16![United Airlines logo]()
$198
This United Airlines deal was found by Cheapflights users on 8/16. 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 10/191:20 pm -
1 stop9h 24m
Deal found 8/16![United Airlines logo]()
$200
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 August 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $389 (Southwest) |
One-way from | $145 (United Airlines) |
Popular in | December |
Cheapest in | January |
Average price | $646 |
Good round-trip deal | $448 or less |
Good one-way deal | $273 or less |
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 7,457,451 searches. Data last updated August 21, 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
Cheapest round-trip
SeattleLihue
SEA Seattle/Tacoma Intl - LIH Lihue
SEALIH
Seattle/Tacoma Intl
Wed 11/11
6:06 pm-10:28 pm
Nonstop6h 22m
Lihue
Thu 11/19
11:29 pm-7:20 am
Nonstop5h 51m
$397
SeattleLihue
SEA Seattle/Tacoma Intl - LIH Lihue
SEALIH
Seattle/Tacoma Intl
Mon 10/19
4:00 pm-7:14 pm
Nonstop6h 14m
Lihue
Mon 11/2
10:51 pm-6:45 am
Nonstop5h 54m
$397
SeattleLihue
SEA Seattle/Tacoma Intl - LIH Lihue
SEALIH
Seattle/Tacoma Intl
Mon 9/28
6:30 am-7:44 pm
2 stops16h 14m
Lihue
Fri 10/2
11:00 pm-12:20 pm
1 stop10h 20m
$406
SeattleLihue
SEA Seattle/Tacoma Intl - LIH Lihue
SEALIH
Seattle/Tacoma Intl
Thu 11/5
7:30 am-9:30 pm
2 stops16h 00m
Lihue
Wed 11/11
7:10 pm-10:05 am
2 stops12h 55m
$407
SeattleLihue
SEA Seattle/Tacoma Intl - LIH Lihue
SEALIH
Seattle/Tacoma Intl
Tue 9/29
4:05 pm-7:10 pm
Nonstop6h 05m
Lihue
Sun 10/4
8:45 pm-9:55 am
1 stop10h 10m
$436
SeattleLihue
SEA Seattle/Tacoma Intl - LIH Lihue
SEALIH
Seattle/Tacoma Intl
Sat 10/31
4:47 pm-10:30 am
1 stop20h 43m
Lihue
Sat 11/7
1:24 pm-9:08 am
1 stop17h 44m
$446
Quickest round-trip
SeattleLihue
SEA Seattle/Tacoma Intl - LIH Lihue
SEALIH
Seattle/Tacoma Intl
Sun 10/18
6:11 pm-9:27 pm
Nonstop6h 16m
Lihue
Sun 10/25
10:31 pm-7:20 am
Nonstop5h 49m
$457
SeattleLihue
SEA Seattle/Tacoma Intl - LIH Lihue
SEALIH
Seattle/Tacoma Intl
Fri 9/18
8:45 pm-3:42 pm
1 stop21h 57m
Lihue
Fri 9/25
3:45 pm-9:08 am
1 stop14h 23m
$458
SeattleLihue
SEA Seattle/Tacoma Intl - LIH Lihue
SEALIH
Seattle/Tacoma Intl
Fri 9/25
9:59 am-5:39 pm
1 stop10h 40m
Lihue
Fri 10/2
9:54 pm-6:45 am
Nonstop5h 51m
$466
SeattleLihue
SEA Seattle/Tacoma Intl - LIH Lihue
SEALIH
Seattle/Tacoma Intl
Tue 11/17
6:06 pm-10:28 pm
Nonstop6h 22m
Lihue
Sun 11/22
11:53 am-7:43 pm
Nonstop5h 50m
$467
Showing 1-10 of 22 resultsSorted by cheapest first
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.
SEA-LIH
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
SEA-zzFUS
SEA-LIH
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 $401). Flying from Seattle to Kaua'i in December is currently the most expensive (average of $713). 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 21, 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 August 21, 2026.
The most flights from SEA to zzFUS are scheduled on a Wednesday (8 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (5 on average).
How far ahead should I book a flight from Seattle to Kaua'i?
Booking 26 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Kaua'i. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
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 21, 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.
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
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.
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Top 5 airlines flying from Seattle to Kaua'i
Discover the top 5 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 7,457,451 searches. Data last updated August 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$204 | Average$567 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$220 | Average$495 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$256 | Average$488 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$283 | Average$623 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$439 | Average$693 | FlexibilityNo cancel fee | On-time63% |