$74 Cheap Flights from Milwaukee (MKE) to St. Louis (STL)

View $74 flight on Tue, Jun 3, 2025Opens in a new window

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

Find available prices by choosing your travel dates.

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

Prices were available within the past 7 days and start at $74 for one-way flights and $147 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Jun 3 - Thu, Jun 5
MKE
Milwaukee
STL
St. Louis
$147 Roundtrip, just found
$147
Roundtrip
just found
Select United flight, departing Tue, Jun 3 from Milwaukee to St. Louis, returning Thu, Jun 5, priced at $147 just found
United
Wed, Jun 4 - Sat, Jun 7
MKE
Milwaukee
STL
St. Louis
$154 Roundtrip, found 2 hours ago
$154
Roundtrip
found 2 hours ago
Select United flight, departing Wed, Jun 4 from Milwaukee to St. Louis, returning Sat, Jun 7, priced at $154 found 2 hours ago
American Airlines
Tue, Jun 3 - Thu, Jun 5
MKE
Milwaukee
STL
St. Louis
$155 Roundtrip, just found
$155
Roundtrip
just found
Select American Airlines flight, departing Tue, Jun 3 from Milwaukee to St. Louis, returning Thu, Jun 5, priced at $155 just found
United
Thu, May 15 - Sat, May 17
MKE
Milwaukee
STL
St. Louis
$156 Roundtrip, found 5 hours ago
$156
Roundtrip
found 5 hours ago
Select United flight, departing Thu, May 15 from Milwaukee to St. Louis, returning Sat, May 17, priced at $156 found 5 hours ago
United
Thu, May 29 - Tue, Jun 3
MKE
Milwaukee
STL
St. Louis
$157 Roundtrip, found 2 hours ago
$157
Roundtrip
found 2 hours ago
Select United flight, departing Thu, May 29 from Milwaukee to St. Louis, returning Tue, Jun 3, priced at $157 found 2 hours ago
American Airlines
Thu, May 29 - Tue, Jun 3
MKE
Milwaukee
STL
St. Louis
$159 Roundtrip, found 2 hours ago
$159
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Thu, May 29 from Milwaukee to St. Louis, returning Tue, Jun 3, priced at $159 found 2 hours ago
American Airlines
Wed, Jun 4 - Sat, Jun 7
MKE
Milwaukee
STL
St. Louis
$160 Roundtrip, found 2 hours ago
$160
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Wed, Jun 4 from Milwaukee to St. Louis, returning Sat, Jun 7, priced at $160 found 2 hours ago
Delta
Tue, Jun 3 - Thu, Jun 5
MKE
Milwaukee
STL
St. Louis
$162 Roundtrip, just found
$162
Roundtrip
just found
Select Delta flight, departing Tue, Jun 3 from Milwaukee to St. Louis, returning Thu, Jun 5, priced at $162 just found
Frontier Airlines
Thu, May 8 - Wed, May 14
MKE
Milwaukee
STL
St. Louis
$180 Roundtrip, found 1 day ago
$180
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, May 8 from Milwaukee to St. Louis, returning Wed, May 14, priced at $180 found 1 day ago
Southwest Airlines
Tue, Jun 3 - Thu, Jun 5
MKE
Milwaukee
STL
St. Louis
$187 Roundtrip, just found
$187
Roundtrip
just found
Select Southwest Airlines flight, departing Tue, Jun 3 from Milwaukee to St. Louis, returning Thu, Jun 5, priced at $187 just found

Frequently asked questions

How much does a flight from General Mitchell Intl. Airport (MKE) to Lambert-St. Louis Intl. Airport (STL) cost?
You can pick up cheap return flights starting from $241 from General Mitchell Intl. Airport (MKE) to Lambert-St. Louis Intl. Airport (STL). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Southwest Airlines flight leaving MKE on May 12 2025 and touching down at STL. The price was last updated on April 23 2025 and has not changed since.
What is the cheapest month to fly from MKE to STL?
The cheapest flights from MKE to STL are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
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 MKE to STL?
Journey from MKE to STL with Southwest Airlines. This carrier currently has the cheapest one-way fare on this route, starting from $114. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from MKE on May 28 2025. Prices were last updated on April 23 2025 and have not changed since.
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.
*Available to One Key members.