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

Compare St Louis to Kona flight deals

Find the cheapest month or even day of the year to fly to Kona

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Flight deals from St Louis to Kona

Looking for a cheap last-minute deal or the best return flight from St Louis Airport to Kona Airport? If you want to travel next month, return fares start from $672. Find the lowest prices on one-way and return tickets right here.
Kailua-Kona.$671 per passenger.Departing Mon, 31 Aug, returning Sat, 5 Sep.Return flight with United.Outbound indirect flight with United, departs from St Louis on Mon, 31 Aug, arriving in Kona.Inbound indirect flight with United, departs from Kona on Sat, 5 Sep, arriving in St Louis.Price includes taxes and charges.From $671, select.
Kailua-Kona.$671 per passenger.Departing Tue, 18 Aug, returning Mon, 24 Aug.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from St Louis on Tue, 18 Aug, arriving in Kona.Inbound indirect flight with Southwest Airlines, departs from Kona on Mon, 24 Aug, arriving in St Louis.Price includes taxes and charges.From $671, select.
Kailua-Kona.$713 per passenger.Departing Sat, 5 Dec, returning Sat, 5 Dec.Return flight with United.Outbound indirect flight with United, departs from St Louis on Sat, 5 Dec, arriving in Kona.Inbound indirect flight with United, departs from Kona on Sat, 5 Dec, arriving in St Louis.Price includes taxes and charges.From $713, select.
Kailua-Kona.$757 per passenger.Departing Thu, 10 Sep, returning Sat, 19 Sep.Return flight with United.Outbound indirect flight with United, departs from St Louis on Thu, 10 Sep, arriving in Kona.Inbound indirect flight with United, departs from Kona on Sat, 19 Sep, arriving in St Louis.Price includes taxes and charges.From $757, select.
Kailua-Kona.$933 per passenger.Departing Sat, 9 Jan, returning Sat, 16 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from St Louis on Sat, 9 Jan, arriving in Kona.Inbound indirect flight with Delta, departs from Kona on Sat, 16 Jan, arriving in St Louis.Price includes taxes and charges.From $933, select.
Kailua-Kona.$1,261 per passenger.Departing Wed, 29 Jul, returning Wed, 5 Aug.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from St Louis on Wed, 29 Jul, arriving in Kona.Inbound indirect flight with Southwest Airlines, departs from Kona on Wed, 5 Aug, arriving in St Louis.Price includes taxes and charges.From $1,261, select.
Kailua-Kona.$1,307 per passenger.Departing Sat, 15 May, returning Sat, 22 May.Return flight with United.Outbound indirect flight with United, departs from St Louis on Sat, 15 May, arriving in Kona.Inbound indirect flight with United, departs from Kona on Sat, 22 May, arriving in St Louis.Price includes taxes and charges.From $1,307, select.
Kailua-Kona.$1,547 per passenger.Departing Sun, 28 Mar, returning Fri, 2 Apr.Return flight with Delta.Outbound indirect flight with Delta, departs from St Louis on Sun, 28 Mar, arriving in Kona.Inbound indirect flight with Delta, departs from Kona on Fri, 2 Apr, arriving in St Louis.Price includes taxes and charges.From $1,547, select.
Kailua-Kona.$2,202 per passenger.Departing Mon, 21 Dec, returning Mon, 4 Jan.Return flight with United.Outbound indirect flight with United, departs from St Louis on Mon, 21 Dec, arriving in Kona.Inbound indirect flight with United, departs from Kona on Mon, 4 Jan, arriving in St Louis.Price includes taxes and charges.From $2,202, select.

Find the cheapest month to fly from St Louis to Kona

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like St Louis to Kona flights are currently cheapest in August.
Jul
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Aug
from $671
Sep
from $757
Oct
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Nov
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Dec
from $713
Jan
from $933
Feb
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Mar
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Apr
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May
from $1,307
Jun
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St Louis to Kona: Alternative routes

Compare routes from St Louis to Kailua-Kona below. You may find an airport to fly into that's cheaper, faster, or easier than Kona.

Kona

12km from central Kailua-Kona
ClosestCheapest
from $671
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Kamuela

53km from central Kailua-Kona
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St Louis to Kailua-Kona: Flight information

The things to know before you go.
Cheapest flight found$671
Cheapest month to flyAugust

Finding cheap flights from St Louis to Kona: Frequently asked questions

The best price we found for a return flight from St Louis to Kona is $671. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from St Louis to Kona. But we found flights with one or more stops from $671.
As of July 2026, there are no flights flying from St Louis to Kona.
The cheapest month to fly from St Louis to Kona is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from St Louis Airport to Kona Airport on Monday, 31 August 2026.
No airlines currently offer direct flights between St Louis Airport and Kona Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Kona but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Kailua-Kona is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, United offers the cheapest flight tickets to Kona.

Flying from St Louis Airport (STL) to Kona Airport (KOA): what you need to know

  • Kailua-Kona's timezone is UTC-10, making Kailua-Kona four hours behind St Louis.

  • Your STL to KOA flight won't wait if you're late, so get to the airport with time to spare. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.

  • Flying during a peak month like July? Public holidays and other popular periods can mean longer lines at airport checkpoints. Be extra cautious and get there up to four hours before international flights and two hours before domestic departures.

  • Consider adding a stopover when booking your ticket from St Louis Airport to Kona Airport. Just deselect 'Direct flights only' to break up your trip, or enjoy a detour to a new and interesting place. Here's where you can stop between STL and KOA:

    • Denver International Airport

    • Los Angeles International Airport

    • Harry Reid International Airport

How to find the cheapest flights from St Louis Airport (STL) to Kona Airport (KOA)

  • $289 is the lowest price for a one-way St Louis Airport to Kona Airport flight. A return flight starts from $671. These prices can change based on availability and demand.

  • It's often best to book in advance if you want to find cheap tickets from STL to KOA. That's because airlines adjust prices based on demand, which tends to rise closer to departure.

  • Finding cheap flights from St Louis Airport to Kona Airport is easier if you can be flexible with your travel dates. Use the 'Whole month' search tool to see the best prices across each month and land a great deal.

  • Picking up cheap flights from STL to KOA is easy with Price Alerts. All you need to do is set up one of these automatic alerts and we'll let you know when fares go down.

  • Tailor your trip with filters. Choose your preferred departure and arrival times, airlines and total journey duration. You can also sort the results by 'Fastest,' 'Cheapest' or 'Best' flights from St Louis Airport to Kona Airport.

Handy information about St Louis Airport (STL)

Arriving at Kona Airport (KOA)

  • After your St Louis Airport to Kona Airport flight has touched down, unwind and relax at a nearby hotel. Banyan Tree Sanctuary Guest House is a convenient option that's not too far from KOA.

  • Travel at your own speed with a Kona Airport rental car. Book your wheels from Dollar, Hertz or Thrifty and see more of Kailua-Kona and beyond.

  • Booking your ride from Kona Airport about one week ahead can help you get the lowest rate.

When to fly to Kona Airport (KOA)

  • July is the busiest month for flights from St Louis Airport to Kona Airport. To steer clear of the crowds, travel to Kailua-Kona in March.

  • The warmest month in Kailua-Kona is August, with the temperature ranging between 17ºC (63ºF) and 25ºC (77ºF). Lock in your flights from St Louis Airport to Kona Airport in this month if this is the kind of weather you like.

  • January sees average temperatures of between 13ºC (55ºF) and 21ºC (70ºF). Search for cheap tickets from STL to KOA sometime then if you like travelling in cooler conditions.

Explore more of the United States

  • Honolulu is just one of the many cities in the United States waiting to be explored once you've seen the sights of Kailua-Kona. Around 274 kilometres away to the north-west, popular attractions include Pacific Ocean, Waikiki Beach and Pearl Harbour.

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Plan the rest of your trip from St Louis to Kailua-Kona

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.