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St. Louis

$423+ Cheap flights from Kailua-Kona to St. Louis (KOA - STL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/16. Fares are subject to change and may not be available on all flights or dates of travel.
KOA — STL
Jan 18 — Jan 251
Sun 1/18
Sun 1/25
1 adult, Economy
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Cheap flight deals from Kailua-Kona to St. Louis

Best flights from Kailua-Kona to St. Louis
Discover carefully curated flight deals from Kailua-Kona to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 19, 2025.

This Delta deal was found by Cheapflights users on 12/17. 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.
Fri 1/168:45 pmKOA - STL
2 stops14h 03mDelta
Wed 1/216:40 amSTL - KOA
2 stops15h 50mDelta
Deal found 12/17$423
This Alaska Airlines deal was found by Cheapflights users on 12/16. 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.
Thu 1/299:10 pmKOA - STL
1 stop12h 44mAlaska Airlines
Mon 2/22:50 pmSTL - KOA
1 stop34h 40mAlaska Airlines
Deal found 12/16$492
This Alaska Airlines deal was found by Cheapflights users on 12/16. 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.
Thu 1/297:40 pmKOA - STL
2 stops14h 14mMultiple Airlines
Mon 2/22:50 pmSTL - KOA
1 stop34h 40mMultiple Airlines
Deal found 12/16$506
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Sat 1/176:05 pmKOA - STL
1 stop12h 57mUnited Airlines
Wed 1/218:45 amSTL - KOA
1 stop11h 56mUnited Airlines
Deal found 12/17$529
This American Airlines deal was found by Cheapflights users on 12/17. 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.
Sat 1/179:44 pmKOA - STL
2 stops13h 03mAmerican Airlines
Wed 1/217:04 amSTL - KOA
1 stop11h 50mAmerican Airlines
Deal found 12/17$534
This Delta deal was found by Cheapflights users on 12/17. 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.
Sat 1/179:30 pmKOA - STL
2 stops20h 08mDelta
Wed 1/216:00 amSTL - KOA
2 stops16h 30mDelta
Deal found 12/17$511
This United Airlines deal was found by Cheapflights users on 12/17. 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 1/168:55 pmKOA - STL
1 stop12h 21mUnited Airlines
Wed 1/218:45 amSTL - KOA
1 stop11h 56mUnited Airlines
Deal found 12/17$619
This Alaska Airlines deal was found by Cheapflights users on 12/18. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1810:17 pmKOA - STL
1 stop21h 42mAlaska Airlines
Sun 2/227:00 amSTL - KOA
1 stop19h 57mAlaska Airlines
Deal found 12/18$625
This United Airlines deal was found by Cheapflights users on 12/18. 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.
Wed 2/188:55 pmKOA - STL
1 stop12h 19mUnited Airlines
Sun 2/226:00 pmSTL - KOA
2 stops22h 53mUnited Airlines
Deal found 12/18$661

Find 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 December 19, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$423
(Delta)
Provider with most accurate pricing for Kona Intl-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Kona Intl-Lambert-St Louis flights.
Search Deals
From Kona Intl to Lambert-St Louis
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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 December 19, 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

Fri 1/16

8:45 pm-2:48 pm

2 stops14h 03m

Lambert-St Louis

Wed 1/21

6:40 am-6:30 pm

2 stops15h 50m

$423

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Thu 1/29

9:10 pm-1:54 pm

1 stop12h 44m

Lambert-St Louis

Mon 2/2

2:50 pm-9:30 pm

1 stop34h 40m

$492

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Thu 1/29

7:40 pm-1:54 pm

2 stops14h 14m

Lambert-St Louis

Mon 2/2

2:50 pm-9:30 pm

1 stop34h 40m

$506

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Sat 1/17

9:30 pm-9:38 pm

2 stops20h 08m

Lambert-St Louis

Wed 1/21

6:00 am-6:30 pm

2 stops16h 30m

$511

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Sat 1/17

6:05 pm-11:02 am

1 stop12h 57m

Lambert-St Louis

Wed 1/21

8:45 am-4:41 pm

1 stop11h 56m

$529

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Sat 1/17

9:44 pm-2:47 pm

2 stops13h 03m

Lambert-St Louis

Wed 1/21

7:04 am-2:54 pm

1 stop11h 50m

$534

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Fri 1/16

8:55 pm-1:16 pm

1 stop12h 21m

Lambert-St Louis

Wed 1/21

8:45 am-4:41 pm

1 stop11h 56m

$619

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Wed 2/18

10:17 pm-11:59 pm

1 stop21h 42m

Lambert-St Louis

Sun 2/22

7:00 am-10:57 pm

1 stop19h 57m

$625

Kailua-KonaSt. Louis

KOA - STL

KOASTL

Kona Intl

Wed 2/18

8:55 pm-1:14 pm

1 stop12h 19m

Lambert-St Louis

Sun 2/22

6:00 pm-12:53 pm

2 stops22h 53m

$661

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Compare providers for flights from Kailua-Kona to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Kailua-Kona to St. Louis in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Kailua-Kona-St. Louis flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Kailua-Kona-St. Louis flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Kailua-Kona-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Kailua-Kona-St. Louis flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Kailua-Kona-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 December 19, 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
9,094 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability
United Airlines
7.4
Good
9,094 reviews
United Airlines
7.4
Good
9,094 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability

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.

  • How long is the flight from Kailua-Kona to St. Louis?

    A quick flight from Kailua-Kona to St. Louis can take about 12h 44m. Delta provides one of the quickest options available for as low as $492. There are 4080 mi between Kailua-Kona and St. Louis. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Kailua-Kona to St. Louis round-trip?

    United Airlines, at $541, was found to be the cheapest airline from Kailua-Kona to St. Louis..

  • What are the cheapest airlines to fly from Kailua-Kona to St. Louis one-way?

    The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $200. However, be on the lookout for offers from Alaska Airlines and Southwest, as they are both options that can get you from Kailua-Kona to St. Louis for a low price.

  • 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.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Swansea
Eureka
Glencoe
St. Peters
Chesterfield
Alton
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 December 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$541Average$641FlexibilityNo cancel feeOn-time69%

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