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$278+ Cheap flights from Kaua'i to St. Louis (STL)

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 12/21. Fares are subject to change and may not be available on all flights or dates of travel.
LIH — STL
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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Cheap flight deals from Kaua'i to St. Louis

Keep the following information in mind while searching for Kaua'i to St. Louis flight deals. Data was last updated August 20, 2025.

Round-trip from

$603
(United Airlines)

One-way from

$278
(American Airlines)
From Kaua'i to Lambert-St Louis
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One-way flight from Kaua'i to Lambert-St Louis
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Find flight deals from Kaua'i to St. Louis

Cheapest flights from Kaua'i to St. Louis
Explore the most affordable flight options available from Kaua'i to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

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.
Tue 9/27:40 pmLIH - STL
1 stop12h 03mUnited Airlines
Sat 9/69:07 amSTL - LIH
2 stops15h 51mUnited Airlines
Deal found 8/18$603
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/29:16 pmLIH - STL
1 stop18h 09mAmerican Airlines
Sat 9/66:20 amSTL - LIH
1 stop10h 54mAmerican Airlines
Deal found 8/18$629
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 9/28:28 pmLIH - STL
2 stops14h 38mDelta
Sat 9/66:00 amSTL - LIH
2 stops16h 18mDelta
Deal found 8/18$653

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kaua'i to St. Louis 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 August 20, 2025.
Use the filters below to find and compare flights from Kaua'i to St. Louis that are best for you.

Fly from

Kaua'i

Fly to

St. Louis

Route

Depart

Return

Price

LihueSt. Louis

LIH - STL

LIHSTL

Lihue

Tue 9/2

7:40 pm-12:43 pm

1 stop12h 03m

Lambert-St Louis

Sat 9/6

9:07 am-7:58 pm

2 stops15h 51m

$603

LihueSt. Louis

LIH - STL

LIHSTL

Lihue

Tue 9/2

9:16 pm-8:25 pm

1 stop18h 09m

Lambert-St Louis

Sat 9/6

6:20 am-12:14 pm

1 stop10h 54m

$629

LihueSt. Louis

LIH - STL

LIHSTL

Lihue

Tue 9/2

8:28 pm-4:06 pm

2 stops14h 38m

Lambert-St Louis

Sat 9/6

6:00 am-5:18 pm

2 stops16h 18m

$653

LihueSt. Louis

LIH - STL

LIHSTL

Lihue

Sun 12/21

11:00 pm-11:49 pm

1 stop20h 49m

$278

LihueSt. Louis

LIH - STL

LIHSTL

Lihue

Sun 12/21

9:35 pm-11:31 pm

2 stops21h 56m

$363

LihueSt. Louis

LIH - STL

LIHSTL

Lihue

Sun 8/31

7:05 pm-11:55 am

2 stops11h 50m

$452

LihueSt. Louis

LIH - STL

LIHSTL

Lihue

Sun 8/31

1:11 pm-9:11 am

3 stops39h 00m

$464

LihueSt. Louis

LIH - STL

LIHSTL

Lihue

Sun 8/31

11:10 pm-4:53 pm

1 stop12h 43m

$497

LihueSt. Louis

LIH - STL

LIHSTL

Lihue

Sun 12/21

9:54 am-4:26 pm

3 stops50h 32m

$533

LihueSt. Louis

LIH - STL

LIHSTL

Lihue

Sat 11/1

12:11 pm-4:18 pm

2 stops23h 07m

$1,246

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 13 results
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Best time to book a flight from Kaua'i to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Kaua'i 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 Kaua'i to St. Louis
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Kaua'i to St. Louis. 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 into for flights to St. Louis from Kaua'i?

    For a flight from Kaua'i to St. Louis, you will be flying into Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city.

  • How long is the flight from Kaua'i to St. Louis?

    There are many flights that can get you from Kaua'i to St. Louis in 12h 03m. Fly via United Airlines, American Airlines, or Delta to get the fastest option. The distance from Kaua'i to St. Louis is about 4171 mi. This flight may include one or multiple stops.

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

    One-way options have recently been found by users for as low as $278 on American Airlines. Other airlines that offer cheap prices include United Airlines from $363 and Southwest from $452 one-way.

  • Can I find deals for flights from Kaua'i to St. Louis that include hotel bookings?

    Yes. In addition to deals on Kaua'i to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Kaua'i to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kaua'i to St. Louis.

  • Can I find deals for business class flights from Kaua'i to St. Louis?

    Yes. Cheapflights offers flight deals from Kaua'i to St. Louis 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 Kaua'i to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Kaua'i to St. Louis (average of $311). Flying from Kaua'i to St. Louis in March is currently the most expensive (average of $356). 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

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Chesterfield
Farmington
Festus

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