Cheap Flights from St. Louis (STL) to Hamilton (HAO)

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Hamilton, OH (HAO-Butler County Regional)

Alternative airports near Hamilton

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

Select flight to Cincinnati - Northern Kentucky Intl. CVG. Cheapest option available. Average driving time to city center is 49 minutes. Flights from $419
CVG
Cincinnati - Northern Kentucky Intl.
Cheapest
Average driving time to city center49 min
Flights from $419

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Butler County Regional Airport (HAO) cost?
Lock in a cheap one-way flight or cheap return flight from Lambert-St. Louis Intl. Airport (STL) to Butler County Regional Airport (HAO) 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 Lambert-St. Louis Intl. Airport (STL) to Butler County Regional Airport (HAO)?
Traveling in can help you save, as it's the cheapest month for flights between STL and HAO. You'll typically find the lowest fares during off-peak months.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Butler County Regional Airport (HAO)?
To find the cheapest airline that'll fly you from STL to HAO, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Butler County Regional Airport (HAO)?
There aren't any daily nonstop flights departing from Lambert-St. Louis Intl. Airport (STL) to Butler County Regional Airport (HAO). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from STL to HAO?
Generally you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* However, this can vary depending 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 Lambert-St. Louis Intl. Airport (STL) to Butler County Regional Airport (HAO)?
To reach Butler County Regional Airport (HAO) on time, opt for a flight that leaves Lambert-St. Louis Intl. Airport (STL) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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 Lambert-St. Louis Intl. Airport (STL) to Butler County Regional Airport (HAO) last-minute?
Booking your flight from STL to HAO right before your journey is typically more expensive. However, if there's some wiggle room with your itinerary, you could snag a cheap last-minute fare.
Is it cheaper to book a STL to HAO flight and hotel package?
Compared with arranging hotels and flights separately, booking a STL to HAO flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one convenient place will take the hassle out of planning your trip. Simply secure your flights and choose from our extensive range of stays, then customize your trip with other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Butler County Regional Airport (HAO)?
If you reserved your STL to HAO flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more details.

Travel information

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Butler County Regional
Distance
316 mi

Book with confidence

Book with confidence

St. Louis to Hamilton Flights

The cheapest times to fly from St. Louis to Hamilton

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

 

The best time to book a flight from St. Louis to Hamilton

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

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 Hamilton 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 Hamilton 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 Hamilton 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 Hamilton Flights

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*Available to One Key members.