$277+ 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 7/2. Fares are subject to change and may not be available on all flights or dates of travel.
KOA — STL
Mar 16 — Mar 231
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Kailua-Kona to St. Louis 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 Kailua-Kona to St. Louis
Cheapest
Best
Last-minute
One-way
Cheapest flights from Kailua-Kona to St. LouisExplore 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 February 14, 2026.
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 February 14, 2026.
This Alaska Airlines deal was found by Cheapflights users on 2/13. 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.
Fri 10/28:00 am
KOA
- STL
1 stop10h 59m
Alaska Airlines
Thu 10/83:24 pm
STL
- KOA
1 stop11h 43m
Alaska Airlines
Deal found 2/13![Alaska Airlines logo]()
$543
This Alaska Airlines deal was found by Cheapflights users on 2/13. 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.
Fri 10/29:30 pm
KOA
- STL
1 stop11h 56m
Alaska Airlines
Fri 10/96:41 am
STL
- KOA
1 stop13h 39m
Alaska Airlines
Deal found 2/13![Alaska Airlines logo]()
$577
This Alaska Airlines deal was found by Cheapflights users on 2/13. 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.
Sun 10/49:30 pm
KOA
- STL
1 stop11h 56m
Alaska Airlines
Thu 10/86:41 am
STL
- KOA
1 stop13h 39m
Alaska Airlines
Deal found 2/13![Alaska Airlines logo]()
$598
This Alaska Airlines deal was found by Cheapflights users on 2/13. 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.
Sun 10/48:00 am
KOA
- STL
1 stop10h 59m
Alaska Airlines
Sat 10/103:24 pm
STL
- KOA
1 stop11h 43m
Alaska Airlines
Deal found 2/13![Alaska Airlines logo]()
$632
This Delta deal was found by Cheapflights users on 2/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/38:40 pm
KOA
- STL
2 stops16h 20m
Delta
Fri 10/96:59 pm
STL
- KOA
2 stops27h 55m
Delta
Deal found 2/13![Delta logo]()
$645
This Alaska Airlines deal was found by Cheapflights users on 2/9. 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 pm
KOA
- STL
1 stop11h 34m
Alaska Airlines
Sun 2/227:00 am
STL
- KOA
1 stop14h 13m
Alaska Airlines
Deal found 2/9![Alaska Airlines logo]()
$654
This Orbitz deal was found by Cheapflights users on 2/13. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/38:00 am
KOA
- STL
1 stop10h 59m
Alaska Airlines
Fri 10/93:24 pm
STL
- KOA
2 stops25h 57m
Alaska Airlines
Deal found 2/13![Alaska Airlines logo]()
$673
This Alaska Airlines deal was found by Cheapflights users on 2/13. 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.
Fri 10/29:30 pm
KOA
- STL
2 stops15h 51m
Alaska Airlines
Sat 10/103:24 pm
STL
- KOA
1 stop11h 43m
Alaska Airlines
Deal found 2/13![Alaska Airlines logo]()
$683
This Delta deal was found by Cheapflights users on 2/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/38:40 pm
KOA
- STL
2 stops16h 20m
Delta
Sat 10/106:30 am
STL
- KOA
2 stops16h 24m
Delta
Deal found 2/13![Delta logo]()
$684
This Delta deal was found by Cheapflights users on 2/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/28:40 pm
KOA
- STL
2 stops15h 05m
Delta
Fri 10/96:59 pm
STL
- KOA
2 stops27h 55m
Delta
Deal found 2/13![Delta logo]()
$696
Best flights from Kailua-Kona to St. LouisDiscover 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 February 14, 2026.
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 February 14, 2026.
This Alaska Airlines deal was found by Cheapflights users on 2/10. 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 7/184:10 pm
KOA
- STL
2 stops16h 52m
Multiple Airlines
Sat 7/256:20 pm
STL
- KOA
1 stop21h 37m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$735
Last-minute flights from Kailua-Kona to St. LouisDiscover last-minute flight deals from Kailua-Kona to St. Louis. Data last updated February 14, 2026 and is based on user searches.
Discover last-minute flight deals from Kailua-Kona to St. Louis. Data last updated February 14, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 2/9. 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 pm
KOA
- STL
1 stop11h 34m
Alaska Airlines
Sun 2/227:00 am
STL
- KOA
1 stop14h 13m
Alaska Airlines
Deal found 2/9![Alaska Airlines logo]()
$654
This United Airlines deal was found by Cheapflights users on 2/12. 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 pm
KOA
- STL
1 stop12h 19m
United Airlines
Sun 2/228:41 am
STL
- KOA
1 stop11h 53m
United Airlines
Deal found 2/12![United Airlines logo]()
$724
One-way flights from Kailua-Kona to St. LouisSearch for one-way flight options from Kailua-Kona to St. Louis. Find affordable one-way fares based on user searches. Data last updated February 14, 2026.
Search for one-way flight options from Kailua-Kona to St. Louis. Find affordable one-way fares based on user searches. Data last updated February 14, 2026.
This Alaska Airlines deal was found by Cheapflights users on 2/10. 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 7/28:00 am
KOA
- STL
1 stop10h 58m
Alaska Airlines
Deal found 2/10![Alaska Airlines logo]()
$277
This Alaska Airlines deal was found by Cheapflights users on 2/12. 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 7/24:41 pm
KOA
- STL
2 stops19h 32m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$288
This Delta deal was found by Cheapflights users on 2/12. 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.
Thu 7/28:40 pm
KOA
- STL
2 stops16h 20m
Delta
Deal found 2/12![Delta logo]()
$323
This American Airlines deal was found by Cheapflights users on 2/10. 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 7/29:45 pm
KOA
- STL
1 stop21h 08m
American Airlines
Deal found 2/10![American Airlines logo]()
$381
This Kiwi.com deal was found by Cheapflights users on 2/9. 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.
Sat 3/2111:59 am
KOA
- STL
2 stops40h 50m
Multiple Airlines
Deal found 2/9![Multiple Airlines logo]()
$591
This Southwest deal was found by Cheapflights users on 2/9. 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.
Sat 3/218:25 pm
KOA
- STL
1 stop13h 30m
Southwest
Deal found 2/9![Southwest logo]()
$801
This deal was found by Cheapflights users on 2/10. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/118:00 pm
KOA
- STL
1 stop11h 41m
United Airlines
Deal found 2/10![United Airlines logo]()
$947
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 February 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $734 (Alaska Airlines) |
One-way from | $277 (Alaska Airlines) |
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 February 14, 2026.
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
Sat 7/18
4:10 pm-2:02 pm
2 stops16h 52m
Lambert-St Louis
Sat 7/25
6:20 pm-10:57 am
1 stop21h 37m
$735
Kailua-KonaSt. Louis
KOA - STL
KOASTL
Kona Intl
Thu 7/2
8:00 am-11:58 pm
1 stop10h 58m
$277
Kailua-KonaSt. Louis
KOA - STL
KOASTL
Kona Intl
Thu 7/2
4:41 pm-5:13 pm
2 stops19h 32m
$288
Kailua-KonaSt. Louis
KOA - STL
KOASTL
Kona Intl
Thu 7/2
8:40 pm-6:00 pm
2 stops16h 20m
$323
Kailua-KonaSt. Louis
KOA - STL
KOASTL
Kona Intl
Thu 7/2
9:45 pm-11:53 pm
1 stop21h 08m
$381
Kailua-KonaSt. Louis
KOA - STL
KOASTL
Kona Intl
Sat 3/21
11:59 am-9:49 am
2 stops40h 50m
$591
Kailua-KonaSt. Louis
KOA - STL
KOASTL
Kona Intl
Sat 3/21
8:25 pm-2:55 pm
1 stop13h 30m
$801
Kailua-KonaSt. Louis
KOA - STL
KOASTL
Kona Intl
Sat 7/11
8:00 pm-12:41 pm
1 stop11h 41m
$947
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 February.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Kailua-Kona-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Kailua-Kona-St. Louis flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.
KOA-STL
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 February 14, 2026.
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.
Food
6.6
Boarding
7.7
Crew
8.1
Comfort
7.3
Overall
7.4
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Food
6.6
Boarding
7.7
Crew
8.1
Comfort
7.3
Overall
7.4
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
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.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsEdwardsville
O'Fallon
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Kailua-Kona
Popular flights
St. Louis flight routes
Alternative routes for Kailua-Kona to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to St. Louis by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Kailua-Kona to St. Louis by cabin class
Find flights from Kailua-Kona to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Kailua-Kona and St. Louis flights
Browse other Kailua-Kona and St. Louis flight options. Last updated on February 14, 2026.
Other flights from Kailua-Kona
Browse through other flights departing from Kailua-Kona. Flights are based on user searches made on Cheapflights and were last updated on February 14, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to St. Louis
Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on February 14, 2026.
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 February 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$541 | Average$641 | FlexibilityNo cancel fee | On-time69% |