$125 Cheap Flights from St. Louis (STL) to Dayton (DAY)

View $125 flight on Mon, Nov 24, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Dayton Intl. Airport (DAY)

Cheap Flights from St. Louis to Dayton (STL-DAY)

Prices were available within the past 7 days and start at $125 for one-way flights and $229 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, Dec 2 - Sun, Feb 15
STL
St. Louis
DAY
Dayton
$229 Roundtrip, found 19 hours ago
$229
Roundtrip
found 19 hours ago
Select American Airlines flight, departing Tue, Dec 2 from St. Louis to Dayton, returning Sun, Feb 15, priced at $229 found 19 hours ago
United
Tue, Dec 2 - Sun, Dec 7
STL
St. Louis
DAY
Dayton
$229 Roundtrip, found 1 day ago
$229
Roundtrip
found 1 day ago
Select United flight, departing Tue, Dec 2 from St. Louis to Dayton, returning Sun, Dec 7, priced at $229 found 1 day ago
United
Sun, Nov 23 - Fri, Nov 28
STL
St. Louis
DAY
Dayton
$241 Roundtrip, found 2 days ago
$241
Roundtrip
found 2 days ago
Select United flight, departing Sun, Nov 23 from St. Louis to Dayton, returning Fri, Nov 28, priced at $241 found 2 days ago
United
Tue, Dec 2 - Sun, Dec 7
STL
St. Louis
DAY
Dayton
$242 Roundtrip, found 1 day ago
$242
Roundtrip
found 1 day ago
Select United flight, departing Tue, Dec 2 from St. Louis to Dayton, returning Sun, Dec 7, priced at $242 found 1 day ago
United
Tue, Nov 18 - Sun, Nov 23
STL
St. Louis
DAY
Dayton
$244 Roundtrip, found 1 day ago
$244
Roundtrip
found 1 day ago
Select United flight, departing Tue, Nov 18 from St. Louis to Dayton, returning Sun, Nov 23, priced at $244 found 1 day ago
United
Tue, Dec 2 - Sun, Feb 15
STL
St. Louis
DAY
Dayton
$246 Roundtrip, found 19 hours ago
$246
Roundtrip
found 19 hours ago
Select United flight, departing Tue, Dec 2 from St. Louis to Dayton, returning Sun, Feb 15, priced at $246 found 19 hours ago
United
Fri, Jan 9 - Sun, Jan 11
STL
St. Louis
DAY
Dayton
$248 Roundtrip, found 4 days ago
$248
Roundtrip
found 4 days ago
Select United flight, departing Fri, Jan 9 from St. Louis to Dayton, returning Sun, Jan 11, priced at $248 found 4 days ago
United
Sun, Nov 23 - Fri, Nov 28
STL
St. Louis
DAY
Dayton
$253 Roundtrip, found 2 days ago
$253
Roundtrip
found 2 days ago
Select United flight, departing Sun, Nov 23 from St. Louis to Dayton, returning Fri, Nov 28, priced at $253 found 2 days ago
United
Fri, Jan 9 - Sun, Jan 11
STL
St. Louis
DAY
Dayton
$254 Roundtrip, found 4 days ago
$254
Roundtrip
found 4 days ago
Select United flight, departing Fri, Jan 9 from St. Louis to Dayton, returning Sun, Jan 11, priced at $254 found 4 days ago
Delta
Tue, Nov 4 - Tue, Nov 11
STL
St. Louis
DAY
Dayton
$279 Roundtrip, found 2 days ago
$279
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Nov 4 from St. Louis to Dayton, returning Tue, Nov 11, priced at $279 found 2 days ago

Find the cheapest month to fly from St. Louis (STL) to Dayton (DAY)

May is typically the cheapest month to fly

From $198 - $490 per traveler.

Alternative airports near Dayton

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

Select flight to James M. Cox Dayton Intl. DAY. Cheapest option available. Average driving time to city center is 16 minutes. Flights from $259
DAY
James M. Cox Dayton Intl.
Cheapest
Average driving time to city center16 min
Flights from $259

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to James M. Cox Dayton Intl. Airport (DAY) cost?
Get a cheap one-way flight from $125 or cheap return flight from $229 from Lambert-St. Louis Intl. Airport (STL) to James M. Cox Dayton Intl. Airport (DAY) 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 James M. Cox Dayton Intl. Airport (DAY)?
The cheapest month to fly from STL to DAY is December, when demand is low. Off-peak months are often when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to James M. Cox Dayton Intl. Airport (DAY)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest STL to DAY flight.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to James M. Cox Dayton Intl. Airport (DAY)?
There aren't any daily nonstop flights from Lambert-St. Louis Intl. Airport (STL) to James M. Cox Dayton Intl. Airport (DAY). But you can book flights with layovers. Filter your search on Expedia to include one or more 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 DAY?
Typically you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* But this can change based on the time of year, 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 James M. Cox Dayton Intl. Airport (DAY)?
To reach James M. Cox Dayton Intl. Airport (DAY) on schedule, pick a flight that takes off from Lambert-St. Louis Intl. Airport (STL) 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 Lambert-St. Louis Intl. Airport (STL) to James M. Cox Dayton Intl. Airport (DAY) last-minute?
Last-minute fares from STL to DAY are typically more expensive. To lock in the best prices, start searching for flights well ahead of time. That said, if your travel plans are flexible, you may land a cheap ticket just before your departure.
Is it cheaper to book a STL to DAY flight and hotel package?
You can save money by booking a STL to DAY flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. After selecting your ideal flights and accommodations, consider adding extras including car rentals, tours and activities.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to James M. Cox Dayton Intl. Airport (DAY)?
It's generally possible to reschedule or cancel your STL to DAY flight. However, if it's been more than 24 hours since booking, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
James M. Cox Dayton Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$223
Distance
337 mi

Book with confidence

St. Louis to Dayton Flights

The cheapest times to fly from St. Louis to Dayton

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

 

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

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

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 Dayton in 2025. You can also book with separate airlines for your outbound and return journeys, from $125 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 Dayton 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 Dayton 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 Dayton Flights

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*Available to One Key members.