$127 Cheap Flights from St. Louis (STL) to Madison (MSN)

View $127 flight on Wed, Nov 19, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Dane County Regional Airport (MSN)

Cheap Flights from St. Louis to Madison (STL-MSN)

Prices were available within the past 7 days and start at $127 for one-way flights and $169 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sun, Nov 9 - Mon, Nov 10
STL
St. Louis
MSN
Madison
$169 Roundtrip, found 5 days ago
$169
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Sun, Nov 9 from St. Louis to Madison, returning Mon, Nov 10, priced at $169 found 5 days ago
Frontier Airlines
Sun, Nov 9 - Mon, Nov 10
STL
St. Louis
MSN
Madison
$227 Roundtrip, found 5 days ago
$227
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Sun, Nov 9 from St. Louis to Madison, returning Mon, Nov 10, priced at $227 found 5 days ago
American Airlines
Mon, Jan 5 - Tue, Jan 20
STL
St. Louis
MSN
Madison
$229 Roundtrip, found 3 hours ago
$229
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Mon, Jan 5 from St. Louis to Madison, returning Tue, Jan 20, priced at $229 found 3 hours ago
Delta
Fri, Dec 12 - Sun, Dec 14
STL
St. Louis
MSN
Madison
$229 Roundtrip, found 1 hour ago
$229
Roundtrip
found 1 hour ago
Select Delta flight, departing Fri, Dec 12 from St. Louis to Madison, returning Sun, Dec 14, priced at $229 found 1 hour ago
United
Fri, Dec 12 - Sun, Dec 14
STL
St. Louis
MSN
Madison
$229 Roundtrip, found 1 hour ago
$229
Roundtrip
found 1 hour ago
Select United flight, departing Fri, Dec 12 from St. Louis to Madison, returning Sun, Dec 14, priced at $229 found 1 hour ago
Delta
Fri, Nov 14 - Sun, Nov 16
STL
St. Louis
MSN
Madison
$234 Roundtrip, found 5 days ago
$234
Roundtrip
found 5 days ago
Select Delta flight, departing Fri, Nov 14 from St. Louis to Madison, returning Sun, Nov 16, priced at $234 found 5 days ago
United
Fri, Nov 14 - Fri, Nov 21
STL
St. Louis
MSN
Madison
$244 Roundtrip, found 6 hours ago
$244
Roundtrip
found 6 hours ago
Select United flight, departing Fri, Nov 14 from St. Louis to Madison, returning Fri, Nov 21, priced at $244 found 6 hours ago
United
Sat, Nov 22 - Mon, Nov 24
STL
St. Louis
MSN
Madison
$246 Roundtrip, found 2 days ago
$246
Roundtrip
found 2 days ago
Select United flight, departing Sat, Nov 22 from St. Louis to Madison, returning Mon, Nov 24, priced at $246 found 2 days ago
United
Mon, Jan 5 - Tue, Jan 20
STL
St. Louis
MSN
Madison
$247 Roundtrip, found 3 hours ago
$247
Roundtrip
found 3 hours ago
Select United flight, departing Mon, Jan 5 from St. Louis to Madison, returning Tue, Jan 20, priced at $247 found 3 hours ago
Delta
Tue, Jan 6 - Wed, Jan 7
STL
St. Louis
MSN
Madison
$251 Roundtrip, found 1 day ago
$251
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Jan 6 from St. Louis to Madison, returning Wed, Jan 7, priced at $251 found 1 day ago

Find the cheapest month to fly from St. Louis (STL) to Madison (MSN)

May is typically the cheapest month to fly

From $198 - $475 per traveler.

Alternative airports near Madison

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

Select flight to Dane County Regional MSN. Cheapest and Closest option available. Average driving time to city center is 11 minutes. Flights from $244
MSN
Dane County Regional
CheapestClosest
Average driving time to city center11 min
Flights from $244
Flights from St. Louis (STL) to Madison (MSN)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Dane County Regional
Airlines serving
American Airlines, Delta, Frontier Airlines, United
Roundtrip price
$169
Distance
308 mi

St. Louis to Madison Flights

The cheapest times to fly from St. Louis to Madison

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

 

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

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

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 Madison in 2025. You can also book with separate airlines for your outbound and return journeys, from $127 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 Madison 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 Madison 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.

 

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Dane County Regional Airport (MSN) cost?
Lock in a cheap one-way flight from $127 or cheap return flight from $169 from Lambert-St. Louis Intl. Airport (STL) to Dane County Regional Airport (MSN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Dane County Regional Airport (MSN)?
Flying in November may help you find better deals, as it's the cheapest month for flights between STL and MSN. 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 Dane County Regional Airport (MSN)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest STL to MSN flight.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Dane County Regional Airport (MSN)?
You'll need to catch a flight with a layover when traveling from Lambert-St. Louis Intl. Airport (STL) to Dane County Regional Airport (MSN). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from STL to MSN?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can vary depending on a range of factors, such as the time of year and carrier.*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 Dane County Regional Airport (MSN)?
To arrive at Dane County Regional Airport (MSN) on schedule, opt for a flight that leaves from Lambert-St. Louis Intl. Airport (STL) before 3 PM. The likelihood 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 Dane County Regional Airport (MSN) last-minute?
Booking your ticket from STL to MSN right before your journey is generally more expensive. But if there's some wiggle room with your travel dates and times, you could land a cheap last-minute fare.
Is it cheaper to book a STL to MSN flight and hotel package?
Compared with arranging flights and hotels separately, booking a STL to MSN flight and hotel package with Expedia could result in significant savings. What's more, having everything in one convenient place will take the hassle out of travel planning. Just pick your flights and select from our wide range of hotels, then tailor your trip with other add-ons like tours and car rentals.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Dane County Regional Airport (MSN)?
If you reserved your STL to MSN flight within the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the fare type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for further details.

Explore a world of travel with Expedia

*Available to One Key members.