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$205+ Cheap flights from Kailua-Kona to St. Louis (KOA - 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 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
KOA — STL
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Kailua-Kona to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Kailua-Kona (KOA) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 14, 2025.

Round-trip from

$421
(Alaska Airlines)

One-way from

$205
(American Airlines)
From Kona Intl to Lambert-St Louis
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One-way flight from Kona Intl to Lambert-St Louis
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Find flight deals from Kailua-Kona to St. Louis

Cheapest flights from Kailua-Kona to St. Louis
Explore the most affordable flight options available from Kailua-Kona to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/158:00 amKOA - STL
1 stop11h 03mAlaska Airlines
Mon 11/107:00 amSTL - KOA
1 stop14h 44mAlaska Airlines
Deal found 8/13$421
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/158:00 amKOA - STL
1 stop11h 03mAlaska Airlines
Thu 11/137:00 amSTL - KOA
2 stops16h 17mAlaska Airlines
Deal found 8/13$446
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/149:20 pmKOA - STL
1 stop12h 41mAlaska Airlines
Mon 11/107:00 amSTL - KOA
1 stop14h 44mAlaska Airlines
Deal found 8/13$485
This American Airlines deal was found by Cheapflights users on 8/13. 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.
Mon 10/133:29 pmKOA - STL
2 stops12h 24mAmerican Airlines
Mon 11/107:00 amSTL - KOA
1 stop12h 44mAmerican Airlines
Deal found 8/13$486
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/156:30 pmKOA - STL
2 stops15h 31mAlaska Airlines
Tue 11/117:00 amSTL - KOA
1 stop14h 44mAlaska Airlines
Deal found 8/13$490
This Southwest deal was found by Cheapflights users on 8/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/138:30 pmKOA - STL
1 stop14h 50mSouthwest
Mon 11/105:25 amSTL - KOA
1 stop12h 15mSouthwest
Deal found 8/13$506
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/158:00 amKOA - STL
1 stop11h 03mAlaska Airlines
Wed 11/127:00 amSTL - KOA
1 stop18h 40mAlaska Airlines
Deal found 8/13$508
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/149:20 pmKOA - STL
1 stop12h 41mAlaska Airlines
Thu 11/137:00 amSTL - KOA
2 stops16h 17mAlaska Airlines
Deal found 8/13$510
This American Airlines deal was found by Cheapflights users on 8/14. 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 8/252:59 pmKOA - STL
2 stops13h 01mAmerican Airlines
Fri 9/56:20 amSTL - KOA
1 stop12h 22mAmerican Airlines
Deal found 8/14$512

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kailua-Kona 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 14, 2025.
Use the filters below to find and compare flights from Kailua-Kona to St. Louis that are best for you.

Fly from

Kailua-Kona

Fly to

St. Louis

Route

Depart

Return

Price

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Thu 10/16

8:00 am-12:03 am

1 stop11h 03m

Lambert-St Louis

Mon 11/10

7:00 am-5:44 pm

1 stop14h 44m

$421

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Wed 10/15

8:00 am-12:03 am

1 stop11h 03m

Lambert-St Louis

Tue 11/11

7:00 am-5:44 pm

1 stop14h 44m

$421

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Wed 10/15

8:00 am-12:03 am

1 stop11h 03m

Lambert-St Louis

Mon 11/10

7:00 am-5:44 pm

1 stop14h 44m

$421

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Thu 10/16

8:00 am-12:03 am

1 stop11h 03m

Lambert-St Louis

Tue 11/11

7:00 am-5:44 pm

1 stop14h 44m

$421

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Thu 10/16

8:00 am-12:03 am

1 stop11h 03m

Lambert-St Louis

Thu 11/13

7:00 am-7:17 pm

2 stops16h 17m

$446

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Wed 10/15

8:00 am-12:03 am

1 stop11h 03m

Lambert-St Louis

Thu 11/13

7:00 am-7:17 pm

2 stops16h 17m

$446

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Tue 10/14

9:20 pm-3:01 pm

1 stop12h 41m

Lambert-St Louis

Tue 11/11

7:00 am-5:44 pm

1 stop14h 44m

$485

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Tue 10/14

9:20 pm-3:01 pm

1 stop12h 41m

Lambert-St Louis

Mon 11/10

7:00 am-5:44 pm

1 stop14h 44m

$485

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Fri 10/17

8:00 am-12:03 am

1 stop11h 03m

Lambert-St Louis

Tue 11/11

7:00 am-5:44 pm

1 stop14h 44m

$485

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Thu 10/16

8:00 am-12:03 am

1 stop11h 03m

Lambert-St Louis

Sun 11/9

7:00 am-5:44 pm

1 stop14h 44m

$485

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 14 results
1
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Best time to book a flight from Kailua-Kona to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Kailua-Kona 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.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated August 14, 2025.
Get a feel of what it's like to fly with United Airlines from Kailua-Kona to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,916 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,916 reviews
United Airlines
7.4
Good
8,916 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Kailua-Kona 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 is the cheapest airline to fly from Kailua-Kona to St. Louis round-trip?

    United Airlines, at $529, was found to be the cheapest airline from Kailua-Kona to St. Louis..

  • Can I find deals for flights from Kailua-Kona to St. Louis that include hotel bookings?

    Yes. In addition to deals on Kailua-Kona to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Kailua-Kona to St. Louis?

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

  • Can I find deals for business class flights from Kailua-Kona to St. Louis?

    Yes. Cheapflights offers flight deals from Kailua-Kona 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 Kailua-Kona to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Kailua-Kona to St. Louis (average of $311). Flying from Kailua-Kona 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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Kailua-Kona to St. Louis

Discover the top airline that operate flights from Kailua-Kona to St. Louis. 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$529Average$678FlexibilityNo cancel feeOn-time69%

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