Title: Cheap Flights from St. Louis (STL) to Kailua-Kona (KOA) - Expedia.ca ![A slow motion image of a small Hawaiian reef shows the gentle and clear water motion, Shutterstock ID 303911984, purchase_order: SP-1269 HA 2018 Batch 1, Order: , client: , other:](https://images.trvl-media.com/place/500784/71617eff-15e3-498c-9ff8-d1fad6626acb.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/500784/71617eff-15e3-498c-9ff8-d1fad6626acb.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from St. Louis (STL) to Kailua-Kona (KOA) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Lambert-St. Louis International Airport (STL) to Kona Intl. Airport (KOA) - ![Alaska Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:stl,to:koa,departure:04/11/2025TANYT&leg2=from:koa,to:stl,departure:11/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:stl,to:koa,departure:04/11/2025TANYT&leg2=from:koa,to:stl,departure:11/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.ca/Flights-Search?leg1=from:stl,to:koa,departure:04/11/2025TANYT&leg2=from:koa,to:stl,departure:11/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![Delta](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.ca/Flights-Search?leg1=from:stl,to:koa,departure:04/11/2025TANYT&leg2=from:koa,to:stl,departure:11/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![Southwest Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg) Southwest Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:stl,to:koa,departure:04/11/2025TANYT&leg2=from:koa,to:stl,departure:11/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) - ![Hawaiian Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_HA.svg) Hawaiian Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:stl,to:koa,departure:04/11/2025TANYT&leg2=from:koa,to:stl,departure:11/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"HA"}}]) ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) ## Find the cheapest month to fly from St. Louis (STL) to Kailua-Kona (KOA) ### January is typically the cheapest month to fly From CA $520 - CA $1,075 per traveller. Flight from St. Louis to Kailua-Kona (STL - KOA) route information | Origin airport | Lambert-St. Louis Intl. | | --- | --- | | Destination airport | Kona Intl. | | Distance | 6531 km | ## St. Louis to Kailua-Kona Flights **The easy way to book your flights from St. Louis to Kailua-Kona**  With Expedia, it’s simple to find and book flights to Kailua-Kona from St. Louis whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from airlines that cover this route. There are nonstop flights to Kona Intl., too.   Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from St. Louis to Kailua-Kona today, tomorrow, or this week.   **Save dollars with cheap flights from Lambert-St. Louis Intl., STL to Kona Intl., KOA**  Sort your search results by price to find great deals on your flight from St. Louis to Kailua-Kona—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Kailua-Kona from St. Louis currently is just rising to .   Here are more money-saving tips:  - Fly in when flight prices are normally at their lowest  - Book about a month to 6 weeks before you travel for the best prices to Kailua-Kona   - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times  - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!  **Reasons to choose Expedia for your flight to Kailua-Kona from St. Louis**  Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Kailua-Kona with Expedia today. ## Frequently asked questions ### How much is a flight from Lambert-St. Louis Intl. Airport (STL) to Ellison Onizuka Kona Intl. Airport at Keāhole? > Based on fares available within the last 7 days on Expedia for flights departing within the next year, round-trip journeys from Lambert-St. Louis Intl. Airport (STL) to KOA start from . Book today to score the best price for your trip. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from Lambert Field to Kona Intl. Airport (KOA)? > We understand that circumstances change unexpectedly, so we've made it as hassle-free as possible for you to cancel your flight online. Just head to the [Customer Service Portal](https://www.expedia.ca/helpcenter) and follow the instructions. ### How do I find cheap flights from STL to Kona Intl. Airport (KOA) that have flexible change policies? > Many carriers offer the option to move your flight without charging a fee. All you pay is the cost difference between flights. When searching for Lambert Field to Ellison Onizuka Kona Intl. Airport at Keāhole flights, you'll find a "No change fees" box for you to tick. ### How many hours is the flight from STL to KOA? > The flight time from Lambert-St. Louis Intl. Airport (STL) to Ellison Onizuka Kona Intl. Airport at Keāhole is around 10 hours and 29 minutes. It's is no small journey, so be sure to fill your carry-on bag with plenty to keep you entertained. ### How far is the flight from Lambert Field to Ellison Onizuka Kona Intl. Airport at Keāhole? > St. Louis to Kailua-Kona is around 6,600 kilometres, so be prepared to spend quite a while in the air. Don't forget to pack all the essentials, from your hoodie to your headphones. Throw in a few snacks to munch on throughout your flight too. ### Which airlines fly direct from Lambert-St. Louis Intl. Airport (STL) to Ellison Onizuka Kona Intl. Airport at Keāhole? > If you want to travel straight from Lambert-St. Louis Intl. Airport (STL) to Ellison Onizuka Kona Intl. Airport at Keāhole, you'll need to book a flight with one or more stops. Unfortunately, there aren't any airlines that fly directly on this route. ### Are Lambert Field to Ellison Onizuka Kona Intl. Airport at Keāhole flight tickets cheaper when they're purchased at the last minute? > Late planners can occasionally pick up a bargain, with some of the cheapest fares from Lambert-St. Louis Intl. Airport (STL) to Ellison Onizuka Kona Intl. Airport at Keāhole arising a few weeks prior to the departure date. If you'd rather plan ahead of time, Expedia compares and updates the best flight deals continuously — as early as 12 months in advance in some cases. 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