$96 Cheap Flights from Milwaukee (MKE) to St. Louis (STL)

View $96 flight on Sat, Nov 15, 2025Opens in a new window

Popular airlines from General Mitchell Intl. Airport (MKE) to St. Louis Lambert Intl. Airport (STL)

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Cheap Flights from Milwaukee to St. Louis (MKE-STL)

Prices were available within the past 7 days and start at $96 for one-way flights and $161 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Nov 6 - Mon, Nov 10
MKE
Milwaukee
STL
St. Louis
$161 Roundtrip, found 1 day ago
$161
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Nov 6 from Milwaukee to St. Louis, returning Mon, Nov 10, priced at $161 found 1 day ago
United
Thu, Oct 30 - Sat, Nov 1
MKE
Milwaukee
STL
St. Louis
$176 Roundtrip, found 2 days ago
$176
Roundtrip
found 2 days ago
Select United flight, departing Thu, Oct 30 from Milwaukee to St. Louis, returning Sat, Nov 1, priced at $176 found 2 days ago
United
Thu, Nov 6 - Mon, Nov 10
MKE
Milwaukee
STL
St. Louis
$190 Roundtrip, found 1 day ago
$190
Roundtrip
found 1 day ago
Select United flight, departing Thu, Nov 6 from Milwaukee to St. Louis, returning Mon, Nov 10, priced at $190 found 1 day ago
United
Mon, Nov 24 - Thu, Nov 27
MKE
Milwaukee
STL
St. Louis
$191 Roundtrip, found 4 days ago
$191
Roundtrip
found 4 days ago
Select United flight, departing Mon, Nov 24 from Milwaukee to St. Louis, returning Thu, Nov 27, priced at $191 found 4 days ago
Frontier Airlines
Mon, Nov 17 - Fri, Dec 5
MKE
Milwaukee
STL
St. Louis
$201 Roundtrip, found 1 day ago
$201
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Mon, Nov 17 from Milwaukee to St. Louis, returning Fri, Dec 5, priced at $201 found 1 day ago
United
Thu, Oct 30 - Sat, Nov 1
MKE
Milwaukee
STL
St. Louis
$207 Roundtrip, found 2 days ago
$207
Roundtrip
found 2 days ago
Select United flight, departing Thu, Oct 30 from Milwaukee to St. Louis, returning Sat, Nov 1, priced at $207 found 2 days ago
United
Thu, Oct 30 - Sat, Nov 1
MKE
Milwaukee
STL
St. Louis
$210 Roundtrip, found 2 days ago
$210
Roundtrip
found 2 days ago
Select United flight, departing Thu, Oct 30 from Milwaukee to St. Louis, returning Sat, Nov 1, priced at $210 found 2 days ago
United
Thu, Nov 6 - Mon, Nov 10
MKE
Milwaukee
STL
St. Louis
$212 Roundtrip, found 1 day ago
$212
Roundtrip
found 1 day ago
Select United flight, departing Thu, Nov 6 from Milwaukee to St. Louis, returning Mon, Nov 10, priced at $212 found 1 day ago
Southwest Airlines
Thu, Nov 6 - Mon, Nov 10
MKE
Milwaukee
STL
St. Louis
$212 Roundtrip, found 1 day ago
$212
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Thu, Nov 6 from Milwaukee to St. Louis, returning Mon, Nov 10, priced at $212 found 1 day ago
Delta
Mon, Feb 9 - Thu, Feb 12
MKE
Milwaukee
STL
St. Louis
$218 Roundtrip, found 2 days ago
$218
Roundtrip
found 2 days ago
Select Delta flight, departing Mon, Feb 9 from Milwaukee to St. Louis, returning Thu, Feb 12, priced at $218 found 2 days ago

Find the cheapest month to fly from Milwaukee (MKE) to St. Louis (STL)

August is typically the cheapest month to fly

From $137 - $392 per traveler.

Alternative airports near St. Louis

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

Select flight to Lambert-St. Louis Intl. STL. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $392
STL
Lambert-St. Louis Intl.
Cheapest
Average driving time to city center20 min
Flights from $392

Frequently asked questions

How much does a flight from General Mitchell Intl. Airport (MKE) to Lambert-St. Louis Intl. Airport (STL) cost?
Secure a cheap one-way flight from $96 or cheap return flight from $161 from General Mitchell Intl. Airport (MKE) to Lambert-St. Louis Intl. Airport (STL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from General Mitchell Intl. Airport (MKE) to Lambert-St. Louis Intl. Airport (STL)?
Planning your trip for November is a great way to save, as it's the cheapest month for flights between MKE and STL. You'll often find the lowest prices during off-peak months.
Which airlines fly direct from General Mitchell Intl. Airport (MKE) to Lambert-St. Louis Intl. Airport (STL)?
If you're departing from General Mitchell Intl. Airport (MKE), you can take a nonstop flight to Lambert-St. Louis Intl. Airport (STL) with Southwest Airlines.
What is the cheapest airline that flies from General Mitchell Intl. Airport (MKE) to Lambert-St. Louis Intl. Airport (STL)?
To find the cheapest airline that'll fly you from MKE to STL, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and cabin 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 General Mitchell Intl. Airport (MKE) to Lambert-St. Louis Intl. Airport (STL)?
On average, there's only 1 direct flight departing from General Mitchell Intl. Airport (MKE) to Lambert-St. Louis Intl. Airport (STL) per day. If this doesn't suit your schedule, check out flights with a layover. Just customize your search on Expedia to include one stop or more to discover the next best option.
What are the most popular departure times for flights from General Mitchell Intl. Airport (MKE) to Lambert-St. Louis Intl. Airport (STL)?
The 6 AM departures from MKE to STL see the highest demand. They can also be more expensive. If you want to save on your fare, choose a less crowded time to fly.
What day of the week has the most flights from MKE to STL?
Jet off on a Friday if you're searching for the largest selection of flights from General Mitchell Intl. Airport (MKE) to Lambert-St. Louis Intl. Airport (STL).
What is the earliest flight from General Mitchell Intl. Airport (MKE) to Lambert-St. Louis Intl. Airport (STL)?
Hop on the earliest flight at around 6:00AM UTC-6, departing from General Mitchell Intl. Airport (MKE). You'll be flying for approximately 1h 35m, touching down at Lambert-St. Louis Intl. Airport (STL) at approximately 7:35AM UTC-6.
How long does it take to fly from General Mitchell Intl. Airport (MKE) to Lambert-St. Louis Intl. Airport (STL)?
It takes about 1 hour and 26 minutes to fly the 320 mi from MKE to STL.
What airline has the least delays from MKE to STL?
United Airlines has the strongest track record for on-time direct flights from General Mitchell Intl. Airport (MKE) to Lambert-St. Louis Intl. Airport (STL), with an on-time rating of 100%. Use the Expedia App to view your journey status before you jet off and get immediate updates about any changes.
What is the best time to fly from General Mitchell Intl. Airport (MKE) to Lambert-St. Louis Intl. Airport (STL)?
Opt for a flight from General Mitchell Intl. Airport (MKE) to Lambert-St. Louis Intl. Airport (STL) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures after this time are on average 22% more likely to be canceled.**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.
What airports do you fly into for St. Louis from General Mitchell Intl. Airport (MKE)?
If you're on a direct flight from General Mitchell Intl. Airport (MKE) to St. Louis, Lambert-St. Louis Intl. Airport (STL) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from General Mitchell Intl. Airport (MKE) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Last-minute fares from MKE to STL are typically more expensive. To secure the lowest rates, start searching for flights well in advance. That being said, if you're flexible with your travel plans, it's possible to score a cheap fare right before your journey.
Is it cheaper to book a MKE to STL flight and hotel package?
You can save money by booking a MKE to STL flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. Once you've chosen your ideal accommodations and flights, you can add extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from General Mitchell Intl. Airport (MKE) to Lambert-St. Louis Intl. Airport (STL)?
Typically, you can reschedule or cancel your MKE to STL flight. However, there may be additional charges, especially if your booking was made over 24 hours ago. Check your itinerary for the airline's rules and fees on flight changes, or if you need more information, go to our Customer Service portal.

Travel information

Origin airport
General Mitchell Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Roundtrip price
$160
Distance
317 mi
Average flight time
1 hour 20 mins

Book with confidence

Milwaukee to St. Louis Flights

The cheapest times to fly from Milwaukee to St. Louis

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

 

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

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

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 Milwaukee to St. Louis in 2025. You can also book with separate airlines for your outbound and return journeys, from $96 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 Milwaukee to St. Louis 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 Milwaukee to St. Louis 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.

 

Milwaukee to St. Louis Flights

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*Available to One Key members.