$266+ 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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LIH
Mar 29 — Apr 51
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
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 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 February 27, 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 February 27, 2026.
This Alaska Airlines deal was found by Cheapflights users on 2/23. 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 9/213:24 pm
STL
- LIH
1 stop11h 32m
Alaska Airlines
Tue 9/2910:31 pm
LIH
- STL
1 stop10h 55m
Alaska Airlines
Deal found 2/23![Alaska Airlines logo]()
$424
This Alaska Airlines deal was found by Cheapflights users on 2/23. 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 9/213:24 pm
STL
- LIH
1 stop11h 32m
Multiple Airlines
Tue 9/298:38 pm
LIH
- STL
2 stops12h 48m
Multiple Airlines
Deal found 2/23![Multiple Airlines logo]()
$430
This Delta deal was found by Cheapflights users on 2/26. 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 5/126:21 am
STL
- LIH
2 stops16h 19m
Delta
Tue 5/268:31 pm
LIH
- STL
2 stops13h 00m
Delta
Deal found 2/26![Delta logo]()
$435
This Delta deal was found by Cheapflights users on 2/23. 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 5/276:21 am
STL
- LIH
2 stops16h 19m
Delta
Wed 6/39:40 pm
LIH
- STL
2 stops16h 23m
Delta
Deal found 2/23![Delta logo]()
$465
This American Airlines deal was found by Cheapflights users on 2/25. 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 8/510:08 am
STL
- LIH
2 stops13h 58m
American Airlines
Wed 8/129:41 pm
LIH
- STL
2 stops12h 02m
American Airlines
Deal found 2/25![American Airlines logo]()
$476
This Delta deal was found by Cheapflights users on 2/24. 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 2/24![Delta logo]()
$484
This Travelocity deal was found by Cheapflights users on 2/23. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:41 am
STL
- LIH
1 stop20h 15m
Alaska Airlines
Mon 10/1910:31 pm
LIH
- STL
1 stop10h 55m
Alaska Airlines
Deal found 2/23![Alaska Airlines logo]()
$485
This Alaska Airlines deal was found by Cheapflights users on 2/24. 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 5/277:41 pm
STL
- LIH
2 stops24h 49m
Multiple Airlines
Wed 6/312:02 pm
LIH
- STL
1 stop23h 35m
Multiple Airlines
Deal found 2/24![Multiple Airlines logo]()
$491
This Southwest deal was found by Cheapflights users on 2/25. 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 4/96:00 am
STL
- LIH
1 stop12h 10m
Southwest
Wed 4/158:10 pm
LIH
- STL
1 stop10h 35m
Southwest
Deal found 2/25![Southwest logo]()
$498
This Delta deal was found by Cheapflights users on 2/24. 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 stops18h 49m
Delta
Deal found 2/24![Delta logo]()
$505
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 February 27, 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 February 27, 2026.
This Delta deal was found by Cheapflights users on 2/26. 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 5/126:21 am
STL
- LIH
2 stops16h 19m
Delta
Tue 5/268:31 pm
LIH
- STL
2 stops13h 00m
Delta
Deal found 2/26![Delta logo]()
$435
This Alaska Airlines deal was found by Cheapflights users on 2/23. 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 4/227:00 am
STL
- LIH
1 stop19h 26m
Multiple Airlines
Mon 4/271:54 pm
LIH
- STL
2 stops20h 56m
Multiple Airlines
Deal found 2/23![Multiple Airlines logo]()
$491
This United Airlines deal was found by Cheapflights users on 2/24. 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 5/48:46 am
STL
- LIH
1 stop12h 01m
United Airlines
Wed 5/67:35 pm
LIH
- STL
1 stop12h 38m
United Airlines
Deal found 2/24![United Airlines logo]()
$516
This American Airlines deal was found by Cheapflights users on 2/26. 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 5/126:21 am
STL
- LIH
1 stop11h 01m
American Airlines
Tue 5/2610:09 pm
LIH
- STL
2 stops13h 24m
American Airlines
Deal found 2/26![American Airlines logo]()
$545
This Alaska Airlines deal was found by Cheapflights users on 2/23. 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
Sun 5/1010:26 pm
LIH
- STL
2 stops20h 33m
Alaska Airlines
Deal found 2/23![Alaska Airlines logo]()
$579
This Southwest deal was found by Cheapflights users on 2/26. 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 3/226:00 am
STL
- LIH
1 stop12h 10m
Southwest
Tue 3/318:10 pm
LIH
- STL
1 stop10h 30m
Southwest
Deal found 2/26![Southwest logo]()
$697
This Alaska Airlines deal was found by Cheapflights users on 2/23. 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 51m
Multiple Airlines
Tue 6/912:02 pm
LIH
- STL
1 stop23h 31m
Multiple Airlines
Deal found 2/23![Multiple Airlines logo]()
$491
This Delta deal was found by Cheapflights users on 2/24. 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 stops17h 20m
Delta
Wed 5/69:25 pm
LIH
- STL
2 stops15h 31m
Delta
Deal found 2/24![Delta logo]()
$533
This United Airlines deal was found by Cheapflights users on 2/23. 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.
Tue 5/57:45 am
STL
- LIH
3 stops19h 36m
United Airlines
Sun 5/107:55 pm
LIH
- STL
2 stops19h 48m
United Airlines
Deal found 2/23![United Airlines logo]()
$651
This Southwest deal was found by Cheapflights users on 2/24. 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.
Fri 4/106:00 am
STL
- LIH
1 stop12h 10m
Southwest
Fri 4/177:10 pm
LIH
- STL
2 stops12h 55m
Southwest
Deal found 2/24![Southwest logo]()
$704
This Alaska Airlines deal was found by Cheapflights users on 2/25. 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 6/285:33 pm
STL
- LIH
2 stops25h 34m
Multiple Airlines
Sun 7/52:39 pm
LIH
- STL
2 stops20h 54m
Multiple Airlines
Deal found 2/25![Multiple Airlines logo]()
$734
Last-minute flights from St. Louis to Kaua'iDiscover last-minute flight deals from St. Louis to Kaua'i. Data last updated February 27, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Kaua'i. Data last updated February 27, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 2/25. 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 3/17:41 am
STL
- LIH
2 stops19h 03m
United Airlines
Tue 3/38:40 pm
LIH
- STL
1 stop12h 34m
United Airlines
Deal found 2/25![United Airlines logo]()
$719
This Alaska Airlines deal was found by Cheapflights users on 2/23. 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 3/27:00 am
STL
- LIH
1 stop12h 50m
Alaska Airlines
Tue 3/311:19 pm
LIH
- STL
1 stop10h 32m
Alaska Airlines
Deal found 2/23![Alaska Airlines logo]()
$629
This Alaska Airlines deal was found by Cheapflights users on 2/23. 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 3/27:00 am
STL
- LIH
1 stop12h 50m
Multiple Airlines
Tue 3/37:45 pm
LIH
- STL
2 stops14h 06m
Multiple Airlines
Deal found 2/23![Multiple Airlines logo]()
$635
This American Airlines deal was found by Cheapflights users on 2/25. 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 3/95:12 am
STL
- LIH
2 stops16h 02m
American Airlines
Mon 3/169:30 pm
LIH
- STL
2 stops14h 43m
American Airlines
Deal found 2/25![American Airlines logo]()
$531
This Southwest deal was found by Cheapflights users on 2/26. 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 3/226:00 am
STL
- LIH
1 stop12h 10m
Southwest
Tue 3/318:10 pm
LIH
- STL
1 stop10h 30m
Southwest
Deal found 2/26![Southwest logo]()
$697
This American Airlines deal was found by Cheapflights users on 2/23. 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.
Thu 3/266:38 am
STL
- LIH
1 stop14h 36m
American Airlines
Wed 4/19:00 pm
LIH
- STL
2 stops13h 28m
American Airlines
Deal found 2/23![American Airlines logo]()
$680
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 February 27, 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 February 27, 2026.
This Delta deal was found by Cheapflights users on 2/23. 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 3/116:29 am
STL
- LIH
2 stops16h 11m
Delta
Deal found 2/23![Delta logo]()
$266
This American Airlines deal was found by Cheapflights users on 2/25. 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 3/115:12 am
STL
- LIH
2 stops16h 02m
American Airlines
Deal found 2/25![American Airlines logo]()
$316
This Kiwi.com deal was found by Cheapflights users on 2/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/238:12 pm
STL
- LIH
3 stops46h 58m
Multiple Airlines
Deal found 2/26![Multiple Airlines logo]()
$336
This Kiwi.com deal was found by Cheapflights users on 2/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/228:06 pm
STL
- LIH
3 stops48h 40m
Multiple Airlines
Deal found 2/26![Multiple Airlines logo]()
$357
This Alaska Airlines deal was found by Cheapflights users on 2/26. 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 7/315:45 am
STL
- LIH
2 stops20h 40m
Alaska Airlines
Deal found 2/26![Alaska Airlines logo]()
$360
This Alaska Airlines deal was found by Cheapflights users on 2/26. 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 8/12:53 pm
STL
- LIH
1 stop11h 32m
Alaska Airlines
Deal found 2/26![Alaska Airlines logo]()
$376
This Alaska Airlines deal was found by Cheapflights users on 2/26. 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 3/237:00 am
STL
- LIH
1 stop19h 29m
Alaska Airlines
Deal found 2/26![Alaska Airlines logo]()
$416
This Southwest deal was found by Cheapflights users on 2/26. 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 3/235:25 am
STL
- LIH
2 stops15h 45m
Southwest
Deal found 2/26![Southwest logo]()
$418
This Southwest deal was found by Cheapflights users on 2/26. 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 3/226:00 am
STL
- LIH
1 stop12h 10m
Southwest
Deal found 2/26![Southwest logo]()
$437
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 February 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $435 (Delta) |
One-way from | $266 (Delta) |
Popular in | December |
Cheapest in | November |
Average price | $741 |
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 February 27, 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
St. LouisLihue
STL - LIH
STLLIH
Lambert-St Louis
Tue 5/12
6:21 am-5:40 pm
2 stops16h 19m
Lihue
Tue 5/26
8:31 pm-2:31 pm
2 stops13h 00m
$435
St. LouisLihue
STL - LIH
STLLIH
Lambert-St Louis
Wed 4/22
7:00 am-9:26 pm
1 stop19h 26m
Lihue
Mon 4/27
1:54 pm-3:50 pm
2 stops20h 56m
$491
St. LouisLihue
STL - LIH
STLLIH
Lambert-St Louis
Tue 6/2
7:41 pm-2:32 pm
2 stops23h 51m
Lihue
Tue 6/9
12:02 pm-4:33 pm
1 stop23h 31m
$491
St. LouisLihue
STL - LIH
STLLIH
Lambert-St Louis
Mon 5/4
8:46 am-3:47 pm
1 stop12h 01m
Lihue
Wed 5/6
7:35 pm-1:13 pm
1 stop12h 38m
$516
St. LouisLihue
STL - LIH
STLLIH
Lambert-St Louis
Mon 5/4
6:20 am-6:40 pm
2 stops17h 20m
Lihue
Wed 5/6
9:25 pm-5:56 pm
2 stops15h 31m
$533
St. LouisLihue
STL - LIH
STLLIH
Lambert-St Louis
Tue 5/12
6:21 am-12:22 pm
1 stop11h 01m
Lihue
Tue 5/26
10:09 pm-4:33 pm
2 stops13h 24m
$545
St. LouisLihue
STL - LIH
STLLIH
Lambert-St Louis
Tue 5/5
7:00 am-9:26 pm
1 stop19h 26m
Lihue
Sun 5/10
10:26 pm-11:59 pm
2 stops20h 33m
$579
St. LouisLihue
STL - LIH
STLLIH
Lambert-St Louis
Tue 5/5
7:45 am-10:21 pm
3 stops19h 36m
Lihue
Sun 5/10
7:55 pm-8:43 pm
2 stops19h 48m
$651
St. LouisLihue
STL - LIH
STLLIH
Lambert-St Louis
Sun 3/22
6:00 am-1:10 pm
1 stop12h 10m
Lihue
Tue 3/31
8:10 pm-11:40 am
1 stop10h 30m
$697
St. LouisLihue
STL - LIH
STLLIH
Lambert-St Louis
Fri 4/10
6:00 am-1:10 pm
1 stop12h 10m
Lihue
Fri 4/17
7:10 pm-1:05 pm
2 stops12h 55m
$704
Showing 1-10 of 18 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 $328). 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 February 27, 2026.
See what other customers who have flown with Alaska Airlines, Southwest, and Delta 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
7.1
Crew
8.5
Comfort
7.8
Overall
8.0
Boarding
8.1
Entertainment
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Food
7.1
Crew
8.5
Comfort
7.8
Overall
8.0
Boarding
8.1
Entertainment
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Food
7.1
Crew
8.5
Comfort
7.8
Overall
8.0
Boarding
8.1
Entertainment
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Food
7.1
Crew
8.5
Comfort
7.8
Overall
8.0
Boarding
8.1
Entertainment
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Food
7.1
Crew
8.5
Comfort
7.8
Overall
8.0
Boarding
8.1
Entertainment
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Food
7.1
Crew
8.5
Comfort
7.8
Overall
8.0
Boarding
8.1
Entertainment
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Related info for your journey
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Complete your trip to Kaua'i by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from St. Louis to Kaua'i by cabin class
Find flights from St. Louis to Kaua'i, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Kaua'i flights
Browse other St. Louis and Kaua'i flight options. Last updated on February 27, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 5 airlines flying from St. Louis to Kaua'i
Discover the top 5 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 February 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$308 | Average$467 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$431 | Average$729 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$440 | Average$765 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$451 | Average$583 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$461 | Average$773 | FlexibilityNo cancel fee | On-time63% |