£318 Cheap Flights from St. Louis (STL) to Kailua-Kona (KOA)

View £318 flight on Sat, 6 Jun 2026Opens in a new window

Flight 1

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

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

Prices were available within the past 7 days and start at £318 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

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

September is typically the cheapest month to fly

From £322 - £485 per traveller.

Frequently asked questions

How long does it take to fly from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Kailua-Kona, HI (KOA-Kona Intl.)?
Flying from STL to KOA with a connection usually takes about 11 hours 30 minutes, traveling roughly 4,083 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Kailua-Kona, HI (KOA-Kona Intl.)?
Select the "Business class" and "First class" filters when looking for STL to KOA flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
What airports do you fly into for Kailua-Kona from Lambert-St. Louis Intl. (STL)?
From Lambert-St. Louis Intl. (STL), you can fly directly into Kona Intl. (KOA) to reach Kailua-Kona. Some flights may connect through major hubs like O'Hare Intl. (ORD), Denver Intl. (DEN), Seattle - Tacoma Intl. (SEA) before reaching Kailua-Kona. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Kona Intl.
Distance
6531 km

Book with confidence

Compare flights from St. Louis to Kailua-Kona easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from St. Louis to Kailua-Kona. Operating between them flights per day, 11 airlines cover the route. And fly direct, getting you to Kona Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Lambert-St. Louis Intl. to Kona Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Lambert-St. Louis Intl. (STL) to Kona Intl. (KOA)

The easiest way to view the best deals on flights from St. Louis to Kailua-Kona today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Lambert-St. Louis Intl. to Kona Intl. start at just and range up to .  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near St. Louis and Kailua-Kona
  • booking your flight during , the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your St. Louis to Kailua-Kona flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Lambert-St. Louis Intl. to Kona Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from St. Louis to Kailua-Kona easily and book with confidence

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