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 13h 49m. Fly via Alaska Airlines or United Airlines 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 $236 on Alaska Airlines. Other airlines that offer cheap prices include American Airlines from $236 and United Airlines from $282 one-way.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

What is the cheapest time of day to fly from FUS to STL?

When flying from Kaua'i to St. Louis, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

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.

$448+ Flights from Kaua'i to St. Louis

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Best flights from Kaua'i to St. Louis
Discover carefully curated flight deals from Kaua'i to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 24, 2025.

Wed 2/1811:19 pmLIH - STL

1 stop20h 40mAlaska Airlines

Sun 2/227:00 amSTL - LIH

1 stop19h 18mAlaska Airlines

Deal found 12/21

$582

Wed 2/188:40 pmLIH - STL

2 stops13h 49mUnited Airlines

Sun 2/226:00 pmSTL - LIH

1 stop27h 04mUnited Airlines

Deal found 12/21

$629

One-way flights from Kaua'i to St. Louis
Search for one-way flight options from Kaua'i to St. Louis. Find affordable one-way fares based on user searches. Data last updated December 24, 2025.

Fri 3/201:06 pmLIH - STL

2 stops29h 53mMultiple Airlines

Deal found 12/23

$448

Fri 3/203:02 pmLIH - STL

2 stops27h 57mAlaska Airlines

Deal found 12/23

$594

Fri 3/209:00 pmLIH - STL

1 stop21h 59mAmerican Airlines

Deal found 12/22

$839

Find flight deals from Kaua'i to St. Louis

Most accurate provider	eDreams 3 stars
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Round-trip from	$582 (Alaska Airlines)
One-way from	$448 (Alaska Airlines)

Provider with most accurate pricing for Lihue-Lambert-St Louis flight deals.

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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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Fly from

Fly to

Route

Depart

Return

Price

LihueSt. Louis

LIH - STL

LIHSTL

Lihue

Wed 2/18

11:19 pm-11:59 pm

1 stop20h 40m

Lambert-St Louis

Sun 2/22

7:00 am-10:18 pm

1 stop19h 18m

$582

LihueSt. Louis

LIH - STL

LIHSTL

Lihue

Wed 2/18

8:40 pm-2:29 pm

2 stops13h 49m

Lambert-St Louis

Sun 2/22

6:00 pm-5:04 pm

1 stop27h 04m

$629

LihueSt. Louis

LIH - STL

LIHSTL

Lihue

Fri 3/20

1:06 pm-11:59 pm

2 stops29h 53m

$448

LihueSt. Louis

LIH - STL

LIHSTL

Lihue

Fri 3/20

3:02 pm-11:59 pm

2 stops27h 57m

$594

LihueSt. Louis

LIH - STL

LIHSTL

Lihue

Fri 3/20

9:00 pm-11:59 pm

1 stop21h 59m

$839

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/23

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.

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Everything you need to know about your flight from Kaua'i to St. Louis

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Related info for your journey

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 13h 49m. Fly via Alaska Airlines or United Airlines 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 $236 on Alaska Airlines. Other airlines that offer cheap prices include American Airlines from $236 and United Airlines from $282 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.

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$448+ 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 3/20. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Kaua'i to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Kaua'i to St. Louis

Best flights from Kaua'i to St. LouisDiscover carefully curated flight deals from Kaua'i to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 24, 2025.

Discover carefully curated flight deals from Kaua'i to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 24, 2025.

Find 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 December 24, 2025.

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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.

Cheapflights Insights

Everything you need to know about your flight from Kaua'i to St. Louis

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?

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

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

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

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

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

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Best flights from Kaua'i to St. Louis
Discover carefully curated flight deals from Kaua'i to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 24, 2025.