$207 Cheap Flights from Kailua-Kona (KOA) to St. Louis (STL)

View $207 flight on Tue, Jan 27, 2026Opens in a new window

Popular airlines from Kona Intl. Airport (KOA) to St. Louis Lambert Intl. Airport (STL)

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Cheap Flights from Kailua-Kona to St. Louis (KOA-STL)

Prices were available within the past 7 days and start at $207 for one-way flights and $424 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, Jan 19 - Sat, Jan 31
KOA
Kona Coast
STL
St. Louis
$424 Roundtrip, found 23 hours ago
$424
Roundtrip
found 23 hours ago
Select Delta flight, departing Mon, Jan 19 from Kona Coast to St. Louis, returning Sat, Jan 31, priced at $424 found 23 hours ago
Delta
Mon, Jan 19 - Sat, Jan 31
KOA
Kona Coast
STL
St. Louis
$445 Roundtrip, found 23 hours ago
$445
Roundtrip
found 23 hours ago
Select Delta flight, departing Mon, Jan 19 from Kona Coast to St. Louis, returning Sat, Jan 31, priced at $445 found 23 hours ago
Alaska Airlines
Tue, May 19 - Tue, May 26
KOA
Kona Coast
STL
St. Louis
$461 Roundtrip, found 3 days ago
$461
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, May 19 from Kona Coast to St. Louis, returning Tue, May 26, priced at $461 found 3 days ago
United
Mon, Jan 19 - Sat, Jan 31
KOA
Kona Coast
STL
St. Louis
$464 Roundtrip, found 23 hours ago
$464
Roundtrip
found 23 hours ago
Select United flight, departing Mon, Jan 19 from Kona Coast to St. Louis, returning Sat, Jan 31, priced at $464 found 23 hours ago
Delta
Tue, May 19 - Tue, May 26
KOA
Kona Coast
STL
St. Louis
$466 Roundtrip, found 3 days ago
$466
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, May 19 from Kona Coast to St. Louis, returning Tue, May 26, priced at $466 found 3 days ago
Alaska Airlines
Thu, Jan 22 - Wed, Jan 28
KOA
Kona Coast
STL
St. Louis
$467 Roundtrip, found 4 days ago
$467
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Thu, Jan 22 from Kona Coast to St. Louis, returning Wed, Jan 28, priced at $467 found 4 days ago
United
Mon, Jan 19 - Sat, Jan 31
KOA
Kona Coast
STL
St. Louis
$469 Roundtrip, found 23 hours ago
$469
Roundtrip
found 23 hours ago
Select United flight, departing Mon, Jan 19 from Kona Coast to St. Louis, returning Sat, Jan 31, priced at $469 found 23 hours ago
Delta
Tue, May 19 - Tue, May 26
KOA
Kona Coast
STL
St. Louis
$472 Roundtrip, found 3 days ago
$472
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, May 19 from Kona Coast to St. Louis, returning Tue, May 26, priced at $472 found 3 days ago
American Airlines
Mon, Jan 19 - Sat, Jan 31
KOA
Kona Coast
STL
St. Louis
$475 Roundtrip, found 23 hours ago
$475
Roundtrip
found 23 hours ago
Select American Airlines flight, departing Mon, Jan 19 from Kona Coast to St. Louis, returning Sat, Jan 31, priced at $475 found 23 hours ago
Southwest Airlines
Sat, Feb 14 - Thu, Feb 19
KOA
Kona Coast
STL
St. Louis
$517 Roundtrip, found 2 days ago
$517
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Sat, Feb 14 from Kona Coast to St. Louis, returning Thu, Feb 19, priced at $517 found 2 days ago

Find the cheapest month to fly from Kailua-Kona (KOA) to St. Louis (STL)

February is typically the cheapest month to fly

From $382 - $1,069 per traveler.

Alternative airports near St. Louis

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Lambert-St. Louis Intl. STL. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $785
STL
Lambert-St. Louis Intl.
Cheapest
Average driving time to city center20 min
Flights from $785
Flights from Kailua-Kona (KOA) to St. Louis (STL)
Origin airport
Kona Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Southwest Airlines, United
Roundtrip price
$424
Distance
4082 mi

Kailua-Kona to St. Louis Flights

The cheapest times to fly from Kailua-Kona to St. Louis

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Kailua-Kona to St. Louis are during the month of January. You can find some of the cheapest flights from Kailua-Kona to St. Louis with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Kailua-Kona to St. Louis

Sunday is one of the best days to book for cheap flights from Kailua-Kona to St. Louis: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Kailua-Kona to St. Louis

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Kailua-Kona to St. Louis in 2025. You can also book with separate airlines for your outbound and return journeys, from $207 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Kailua-Kona to St. Louis flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Kailua-Kona to St. Louis airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Kona Intl. Airport (KOA) to Lambert-St. Louis Intl. Airport (STL) cost?
Grab a cheap one-way flight from $207 or cheap return flight from $424 from Kona Intl. Airport (KOA) to Lambert-St. Louis Intl. Airport (STL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Kona Intl. Airport (KOA) to Lambert-St. Louis Intl. Airport (STL)?
The cheapest month to fly from KOA to STL is January, when demand is low. Off-peak season is usually when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Kona Intl. Airport (KOA) to Lambert-St. Louis Intl. Airport (STL)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest KOA to STL flight.
How many flights per day from Kona Intl. Airport (KOA) to Lambert-St. Louis Intl. Airport (STL)?
Direct flights from Kona Intl. Airport (KOA) to Lambert-St. Louis Intl. Airport (STL) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from KOA to STL?
Usually you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* However, this can vary based on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Kona Intl. Airport (KOA) to Lambert-St. Louis Intl. Airport (STL)?
Opt for a flight from Kona Intl. Airport (KOA) to Lambert-St. Louis Intl. Airport (STL) that leaves before 3 PM to reduce the risk of cancellations. Departures after this time have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Kona Intl. Airport (KOA) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Last-minute bookings from KOA to STL are usually more expensive. To lock in the lowest rates, start looking for flights early. That said, if you're flexible with your travel plans, you may score a cheap ticket just before your departure.
Is it cheaper to book a KOA to STL flight and hotel package?
Securing a KOA to STL flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Select from our wide range of stays and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Kona Intl. Airport (KOA) to Lambert-St. Louis Intl. Airport (STL)?
In most instances, you're able to reschedule or cancel your KOA to STL flight. However, there may be additional charges, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's guidelines and fees on flight changes, or if you need further details, go to our Customer Service portal.

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*Available to One Key members.