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

Popular airlines from St. Louis, MO (CPS-St. Louis Downtown) to Kona Intl. Airport (KOA)

Frequently asked questions

How much does a flight from St. Louis Downtown Airport (CPS) to Kona Intl. Airport (KOA) cost?
Lock in a cheap one-way flight or cheap return flight from St. Louis Downtown Airport (CPS) to Kona Intl. Airport (KOA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from St. Louis Downtown Airport (CPS) to Kona Intl. Airport (KOA)?
Planning your trip for can help you save, as it's the cheapest month for flights between CPS and KOA. You'll often find the lowest fares during off-peak months.
What is the cheapest airline that flies from St. Louis Downtown Airport (CPS) to Kona Intl. Airport (KOA)?
To find the cheapest airline flying from CPS to KOA, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from St. Louis Downtown Airport (CPS) to Kona Intl. Airport (KOA)?
You'll need to book a flight with a layover when traveling from St. Louis Downtown Airport (CPS) to Kona Intl. Airport (KOA). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from CPS to KOA?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from St. Louis Downtown Airport (CPS) to Kona Intl. Airport (KOA)?
To touch down at Kona Intl. Airport (KOA) on schedule, pick a flight that leaves from St. Louis Downtown Airport (CPS) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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 St. Louis Downtown Airport (CPS) to Kona Intl. Airport (KOA) last-minute?
Waiting until right before your break to book a flight from CPS to KOA generally means paying more. While you may find some last-minute discounts, there's no guarantee. Be flexible with your itinerary for a better chance of landing a bargain.
Is it cheaper to book a CPS to KOA flight and hotel package?
Booking a CPS to KOA 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 impressive range of stays and then add flights, activities 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 St. Louis Downtown Airport (CPS) to Kona Intl. Airport (KOA)?
It's usually possible to reschedule or cancel your CPS to KOA flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Travel information

Origin airport
St. Louis Downtown
Destination airport
Kona Intl.
Distance
4093 mi

Book with confidence

Book with confidence

St. Louis to Kailua-Kona Flights

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

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 St. Louis to Kailua-Kona are during the month of . You can find some of the cheapest flights from St. Louis to Kailua-Kona with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from St. Louis to Kailua-Kona: 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 St. Louis to Kailua-Kona

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 St. Louis to Kailua-Kona in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 St. Louis to Kailua-Kona 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 St. Louis to Kailua-Kona 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.

 

St. Louis to Kailua-Kona Flights

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*Available to One Key members.