$221+ Cheap flights from St. Louis (STL) 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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LIH
Apr 15 — Apr 221
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis 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
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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 St. Louis to Kaua'i
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Best
Last-minute
One-way
Cheapest flights from St. Louis to Kaua'iExplore the most affordable flight options available from St. Louis to Kaua'i. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 16, 2026.
Explore the most affordable flight options available from St. Louis to Kaua'i. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 16, 2026.
This American Airlines deal was found by Cheapflights users on 3/11. 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.
Wed 4/296:21 am
STL
- LIH
1 stop11h 01m
American Airlines
Mon 5/49:30 pm
LIH
- STL
2 stops14h 51m
American Airlines
Deal found 3/11![American Airlines logo]()
$439
This American Airlines deal was found by Cheapflights users on 3/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:00 am
STL
- LIH
1 stop12h 48m
American Airlines
Wed 12/910:44 pm
LIH
- STL
1 stop11h 07m
American Airlines
Deal found 3/13![American Airlines logo]()
$444
This Expedia deal was found by Cheapflights users on 3/11. 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.
Wed 4/297:00 am
STL
- LIH
1 stop19h 26m
Alaska Airlines
Mon 5/410:26 pm
LIH
- STL
1 stop12h 24m
Alaska Airlines
Deal found 3/11![Alaska Airlines logo]()
$482
This Expedia deal was found by Cheapflights users on 3/11. 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.
Wed 4/227:00 am
STL
- LIH
1 stop19h 26m
Multiple Airlines
Wed 4/299:00 pm
LIH
- STL
2 stops21h 59m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$488
This American Airlines deal was found by Cheapflights users on 3/11. 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.
Wed 4/296:21 am
STL
- LIH
1 stop11h 01m
American Airlines
Sun 5/39:30 pm
LIH
- STL
1 stop11h 21m
American Airlines
Deal found 3/11![American Airlines logo]()
$492
This American Airlines deal was found by Cheapflights users on 3/15. 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.
Mon 5/45:20 am
STL
- LIH
2 stops14h 55m
American Airlines
Mon 5/119:30 pm
LIH
- STL
1 stop11h 21m
American Airlines
Deal found 3/15![American Airlines logo]()
$501
This Alaska Airlines deal was found by Cheapflights users on 3/11. 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 9/173:24 pm
STL
- LIH
1 stop11h 32m
Alaska Airlines
Tue 9/2210:31 pm
LIH
- STL
1 stop10h 55m
Alaska Airlines
Deal found 3/11![Alaska Airlines logo]()
$502
This Expedia deal was found by Cheapflights users on 3/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:41 am
STL
- LIH
1 stop20h 15m
Alaska Airlines
Fri 9/410:31 pm
LIH
- STL
1 stop10h 55m
Alaska Airlines
Deal found 3/15![Alaska Airlines logo]()
$506
This American Airlines deal was found by Cheapflights users on 3/11. 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.
Tue 5/56:21 am
STL
- LIH
1 stop11h 01m
American Airlines
Sun 5/102:12 pm
LIH
- STL
2 stops13h 15m
American Airlines
Deal found 3/11![American Airlines logo]()
$508
Best flights from St. Louis to Kaua'iDiscover carefully curated flight deals from St. Louis to Kaua'i that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 16, 2026.
Discover carefully curated flight deals from St. Louis to Kaua'i that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 16, 2026.
This United Airlines deal was found by Cheapflights users on 3/11. 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 4/298:54 am
STL
- LIH
1 stop11h 53m
United Airlines
Mon 5/47:35 pm
LIH
- STL
1 stop12h 38m
United Airlines
Deal found 3/11![United Airlines logo]()
$488
This Delta deal was found by Cheapflights users on 3/11. 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 5/56:20 am
STL
- LIH
2 stops17h 20m
Delta
Sun 5/109:40 pm
LIH
- STL
2 stops16h 23m
Delta
Deal found 3/11![Delta logo]()
$513
This Southwest deal was found by Cheapflights users on 3/11. 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.
Wed 4/296:35 am
STL
- LIH
2 stops14h 35m
Southwest
Mon 5/47:10 pm
LIH
- STL
2 stops11h 50m
Southwest
Deal found 3/11![Southwest logo]()
$524
This Alaska Airlines deal was found by Cheapflights users on 3/15. 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.
Tue 6/25:33 pm
STL
- LIH
1 stop22h 29m
Alaska Airlines
Tue 6/910:26 pm
LIH
- STL
1 stop10h 29m
Alaska Airlines
Deal found 3/15![Alaska Airlines logo]()
$622
This Alaska Airlines deal was found by Cheapflights users on 3/11. 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 6/27:41 pm
STL
- LIH
2 stops23h 28m
Multiple Airlines
Tue 6/912:30 pm
LIH
- STL
1 stop20h 25m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$633
This Delta deal was found by Cheapflights users on 3/11. 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 5/46:20 am
STL
- LIH
2 stops16h 20m
Delta
Mon 5/119:40 pm
LIH
- STL
2 stops16h 23m
Delta
Deal found 3/11![Delta logo]()
$535
This Southwest deal was found by Cheapflights users on 3/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/266:15 am
STL
- LIH
2 stops14h 55m
Southwest
Sun 5/38:10 pm
LIH
- STL
1 stop10h 35m
Southwest
Deal found 3/12![Southwest logo]()
$600
This Alaska Airlines deal was found by Cheapflights users on 3/11. 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 5/57:00 am
STL
- LIH
1 stop19h 26m
Alaska Airlines
Wed 5/610:26 pm
LIH
- STL
1 stop20h 33m
Alaska Airlines
Deal found 3/11![Alaska Airlines logo]()
$634
This Delta deal was found by Cheapflights users on 3/11. 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 5/117:00 am
STL
- LIH
2 stops17h 06m
Delta
Sat 5/169:40 pm
LIH
- STL
2 stops16h 23m
Delta
Deal found 3/11![Delta logo]()
$593
Last-minute flights from St. Louis to Kaua'iDiscover last-minute flight deals from St. Louis to Kaua'i. Data last updated March 16, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Kaua'i. Data last updated March 16, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 3/11. 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.
Wed 4/227:00 am
STL
- LIH
1 stop19h 26m
Multiple Airlines
Wed 4/299:00 pm
LIH
- STL
2 stops21h 59m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$488
This American Airlines deal was found by Cheapflights users on 3/11. 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.
Wed 4/226:21 am
STL
- LIH
1 stop11h 01m
American Airlines
Wed 4/299:30 pm
LIH
- STL
1 stop21h 29m
American Airlines
Deal found 3/11![American Airlines logo]()
$591
This American Airlines deal was found by Cheapflights users on 3/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/266:21 am
STL
- LIH
1 stop11h 01m
American Airlines
Sun 5/39:30 pm
LIH
- STL
1 stop11h 21m
American Airlines
Deal found 3/12![American Airlines logo]()
$574
This Southwest deal was found by Cheapflights users on 3/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/266:15 am
STL
- LIH
2 stops14h 55m
Southwest
Sun 5/38:10 pm
LIH
- STL
1 stop10h 35m
Southwest
Deal found 3/12![Southwest logo]()
$600
This American Airlines deal was found by Cheapflights users on 3/11. 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.
Wed 4/296:21 am
STL
- LIH
1 stop11h 01m
American Airlines
Mon 5/49:30 pm
LIH
- STL
2 stops14h 51m
American Airlines
Deal found 3/11![American Airlines logo]()
$439
This Expedia deal was found by Cheapflights users on 3/11. 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.
Wed 4/297:00 am
STL
- LIH
1 stop19h 26m
Alaska Airlines
Mon 5/410:26 pm
LIH
- STL
1 stop12h 24m
Alaska Airlines
Deal found 3/11![Alaska Airlines logo]()
$482
This American Airlines deal was found by Cheapflights users on 3/11. 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.
Wed 4/296:21 am
STL
- LIH
1 stop11h 01m
American Airlines
Sun 5/39:30 pm
LIH
- STL
1 stop11h 21m
American Airlines
Deal found 3/11![American Airlines logo]()
$492
This Southwest deal was found by Cheapflights users on 3/11. 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.
Wed 4/296:35 am
STL
- LIH
2 stops14h 35m
Southwest
Mon 5/47:10 pm
LIH
- STL
2 stops11h 50m
Southwest
Deal found 3/11![Southwest logo]()
$524
This Expedia deal was found by Cheapflights users on 3/11. 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.
Wed 4/294:46 pm
STL
- LIH
2 stops22h 00m
Multiple Airlines
Sun 5/37:55 pm
LIH
- STL
2 stops23h 04m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$570
One-way flights from St. Louis to Kaua'iSearch for one-way flight options from St. Louis to Kaua'i. Find affordable one-way fares based on user searches. Data last updated March 16, 2026.
Search for one-way flight options from St. Louis to Kaua'i. Find affordable one-way fares based on user searches. Data last updated March 16, 2026.
This Alaska Airlines deal was found by Cheapflights users on 3/11. 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 4/157:00 am
STL
- LIH
1 stop19h 29m
Alaska Airlines
Deal found 3/11![Alaska Airlines logo]()
$221
This Alaska Airlines deal was found by Cheapflights users on 3/15. 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.
Sun 9/66:20 pm
STL
- LIH
1 stop21h 01m
Alaska Airlines
Deal found 3/15![Alaska Airlines logo]()
$222
This Expedia deal was found by Cheapflights users on 3/11. 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.
Wed 4/157:00 am
STL
- LIH
2 stops28h 56m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$266
This Expedia deal was found by Cheapflights users on 3/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/67:32 pm
STL
- LIH
2 stops21h 57m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$283
This American Airlines deal was found by Cheapflights users on 3/16. 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.
Mon 7/276:36 am
STL
- LIH
1 stop19h 12m
American Airlines
Deal found 3/16![American Airlines logo]()
$290
This Delta deal was found by Cheapflights users on 3/16. 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 7/286:30 am
STL
- LIH
2 stops17h 50m
Delta
Deal found 3/16![Delta logo]()
$328
This Delta deal was found by Cheapflights users on 3/16. 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.
Sun 5/246:21 am
STL
- LIH
2 stops16h 19m
Delta
Deal found 3/16![Delta logo]()
$342
This Alaska Airlines deal was found by Cheapflights users on 3/16. 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 7/279:08 am
STL
- LIH
2 stops17h 17m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$346
This Expedia deal was found by Cheapflights users on 3/16. 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.
Mon 7/277:56 pm
STL
- LIH
2 stops24h 17m
Multiple Airlines
Deal found 3/16![Multiple Airlines logo]()
$351
This United Airlines deal was found by Cheapflights users on 3/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/279:00 am
STL
- LIH
1 stop12h 04m
United Airlines
Deal found 3/12![United Airlines logo]()
$361
This Delta deal was found by Cheapflights users on 3/16. 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.
Sun 7/261:30 pm
STL
- LIH
2 stops34h 50m
Delta
Deal found 3/16![Delta logo]()
$362
Find flight deals from St. Louis to Kaua'i
Keep the following information in mind while searching for St. Louis to Kaua'i flight deals. Data was last updated March 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $439 (American Airlines) |
One-way from | $221 (Alaska Airlines) |
Popular in | December |
Cheapest in | November |
Average price | $749 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis 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 March 16, 2026.
Use the filters below to find and compare flights from St. Louis to Kaua'i that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
St. LouisLihue
STL - LIH
STLLIH
Lambert-St Louis
Wed 4/29
8:54 am-3:47 pm
1 stop11h 53m
Lihue
Mon 5/4
7:35 pm-1:13 pm
1 stop12h 38m
$488
St. LouisLihue
STL - LIH
STLLIH
Lambert-St Louis
Tue 5/5
6:20 am-6:40 pm
2 stops17h 20m
Lihue
Sun 5/10
9:40 pm-7:03 pm
2 stops16h 23m
$513
St. LouisLihue
STL - LIH
STLLIH
Lambert-St Louis
Wed 4/29
6:35 am-4:10 pm
2 stops14h 35m
Lihue
Mon 5/4
7:10 pm-12:00 pm
2 stops11h 50m
$524
St. LouisLihue
STL - LIH
STLLIH
Lambert-St Louis
Mon 5/4
6:20 am-5:40 pm
2 stops16h 20m
Lihue
Mon 5/11
9:40 pm-7:03 pm
2 stops16h 23m
$535
St. LouisLihue
STL - LIH
STLLIH
Lambert-St Louis
Mon 5/11
7:00 am-7:06 pm
2 stops17h 06m
Lihue
Sat 5/16
9:40 pm-7:03 pm
2 stops16h 23m
$593
St. LouisLihue
STL - LIH
STLLIH
Lambert-St Louis
Sun 4/26
6:15 am-4:10 pm
2 stops14h 55m
Lihue
Sun 5/3
8:10 pm-11:45 am
1 stop10h 35m
$600
St. LouisLihue
STL - LIH
STLLIH
Lambert-St Louis
Tue 6/2
5:33 pm-11:02 am
1 stop22h 29m
Lihue
Tue 6/9
10:26 pm-1:55 pm
1 stop10h 29m
$622
St. LouisLihue
STL - LIH
STLLIH
Lambert-St Louis
Tue 6/2
7:41 pm-2:09 pm
2 stops23h 28m
Lihue
Tue 6/9
12:30 pm-1:55 pm
1 stop20h 25m
$633
St. LouisLihue
STL - LIH
STLLIH
Lambert-St Louis
Tue 5/5
7:00 am-9:26 pm
1 stop19h 26m
Lihue
Wed 5/6
10:26 pm-11:59 pm
1 stop20h 33m
$634
Cheapest one-way
St. LouisLihue
STL - LIH
STLLIH
Lambert-St Louis
Wed 4/15
7:00 am-9:29 pm
1 stop19h 29m
$221
Showing 1-10 of 20 resultsSorted by cheapest first
Best time to book a flight from St. Louis to Kaua'i
Have a flexible travel schedule? Discover the best time to fly to Kaua'i from St. Louis with our price prediction graph.
STL-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 St. Louis to Kaua'i
STL-zzFUS
STL-LIH
What is the cheapest month to book a flight from St. Louis to Kaua'i?
Currently, August is the cheapest month in which you can book a flight from St. Louis to Kaua'i (average of $321). Flying from St. Louis to Kaua'i in July is currently the most expensive (average of $770). 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.
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 March 16, 2026.
See what other customers who have flown with Southwest,Alaska Airlines, andUnited Airlines from St. Louis to Kaua'i have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Related info for your journey
Find useful and relevant information for your journey from St. Louis 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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Alternative routes for St. Louis to Kaua'i
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St. Louis and Kaua'i flights
Browse other St. Louis and Kaua'i flight options. Last updated on March 16, 2026.
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Top 4 airlines flying from St. Louis to Kaua'i
Discover the top 4 airlines that operate flights from St. Louis 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 March 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$431 | Average$729 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$440 | Average$711 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$451 | Average$583 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$461 | Average$783 | FlexibilityNo cancel fee | On-time63% |