Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Milwaukee to St. Louis from $144

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Milwaukee to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
7:55 am - 9:20 amMKE  Milwaukee-Mitchell-STL Lambert-St Louis
1h 25mnonstop
Southwest Logo
9:50 pm - 11:10 pmSTL  Lambert-St Louis-MKE Milwaukee-Mitchell
1h 20mnonstop
$297Southwest
Thu, Nov 12 - Fri, Nov 13
Southwest Logo
8:00 am - 9:30 amMKE  Milwaukee-Mitchell-STL Lambert-St Louis
1h 30mnonstop
Southwest Logo
8:30 am - 9:40 amSTL  Lambert-St Louis-MKE Milwaukee-Mitchell
1h 10mnonstop
$297Southwest
Tue, Nov 10 - Tue, Nov 17
Southwest Logo
8:00 am - 9:30 amMKE  Milwaukee-Mitchell-STL Lambert-St Louis
1h 30mnonstop
Southwest Logo
8:15 pm - 9:30 pmSTL  Lambert-St Louis-MKE Milwaukee-Mitchell
1h 15mnonstop
$297Southwest
Tue, Nov 10 - Tue, Nov 17
Southwest Logo
7:55 am - 9:20 amMKE  Milwaukee-Mitchell-STL Lambert-St Louis
1h 25mnonstop
Southwest Logo
9:50 pm - 11:10 pmSTL  Lambert-St Louis-MKE Milwaukee-Mitchell
1h 20mnonstop
$297Southwest
Mon, Nov 23 - Fri, Nov 27
United Airlines Logo
8:35 am - 12:10 pmMKE  Milwaukee-Mitchell-STL Lambert-St Louis
3h 35m1 stop Chicago O'Hare Intl
United Airlines Logo
9:40 am - 2:58 pmSTL  Lambert-St Louis-MKE Milwaukee-Mitchell
5h 18m1 stop Chicago O'Hare Intl
$307United Airlines
Mon, Nov 23 - Fri, Nov 27
United Airlines Logo
2:23 pm - 7:23 pmMKE  Milwaukee-Mitchell-STL Lambert-St Louis
5h 00m1 stop Chicago O'Hare Intl
United Airlines Logo
9:40 am - 1:32 pmSTL  Lambert-St Louis-MKE Milwaukee-Mitchell
3h 52m1 stop Chicago O'Hare Intl
$307United Airlines
Tue, Nov 10 - Tue, Nov 17
American Airlines Logo
5:04 am - 10:53 amMKE  Milwaukee-Mitchell-STL Lambert-St Louis
5h 49m1 stop Chicago O'Hare Intl
American Airlines Logo
10:56 am - 2:30 pmSTL  Lambert-St Louis-MKE Milwaukee-Mitchell
3h 34m1 stop Chicago O'Hare Intl
$307American Airlines
Thu, Nov 12 - Thu, Nov 19
American Airlines Logo
8:40 am - 12:50 pmMKE  Milwaukee-Mitchell-STL Lambert-St Louis
4h 10m1 stop Chicago O'Hare Intl
American Airlines Logo
5:01 am - 11:08 amSTL  Lambert-St Louis-MKE Milwaukee-Mitchell
6h 07m1 stop Chicago O'Hare Intl
$307American Airlines
Thu, Nov 12 - Fri, Nov 13
United Airlines Logo
12:03 pm - 3:43 pmMKE  Milwaukee-Mitchell-STL Lambert-St Louis
3h 40m1 stop Chicago O'Hare Intl
United Airlines Logo
5:00 am - 8:35 amSTL  Lambert-St Louis-MKE Milwaukee-Mitchell
3h 35m1 stop Chicago O'Hare Intl
$307United Airlines
Fri, Nov 6 - Mon, Nov 16
American Airlines Logo
7:40 am - 12:50 pmMKE  Milwaukee-Mitchell-STL Lambert-St Louis
5h 10m1 stop Chicago O'Hare Intl
American Airlines Logo
6:00 am - 11:08 amSTL  Lambert-St Louis-MKE Milwaukee-Mitchell
5h 08m1 stop Chicago O'Hare Intl
$307American Airlines
Tue, Nov 10 - Thu, Nov 12

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Southwest flights from Milwaukee to St. Louis

Our best Southwest deals on Milwaukee to St. Louis flight tickets
Southwest
Nov 6
MKE5:50 pmMilwaukee-Mitchell
1h 20m
STL7:10 pmLambert-St Louis
Nov 16
STL8:15 pmLambert-St Louis
1h 15m
MKE9:30 pmMilwaukee-Mitchell
$297
Southwest
Nov 6
MKE5:30 amMilwaukee-Mitchell
4h 35m
1 stop
STL10:05 amLambert-St Louis
Nov 16
STL8:30 amLambert-St Louis
1h 10m
MKE9:40 amMilwaukee-Mitchell
$307
Southwest
Nov 5
MKE12:45 pmMilwaukee-Mitchell
8h 15m
2 stops
STL9:00 pmLambert-St Louis
Nov 9
STL8:25 amLambert-St Louis
1h 15m
MKE9:40 amMilwaukee-Mitchell
$312

American Airlines flights from Milwaukee to St. Louis

Our best American Airlines deals on Milwaukee to St. Louis flight tickets
American Airlines
Nov 25
MKE5:00 amMilwaukee-Mitchell
5h 34m
1 stop
STL10:34 amLambert-St Louis
Nov 28
STL5:50 amLambert-St Louis
6h 26m
1 stop
MKE12:16 pmMilwaukee-Mitchell
$341
American Airlines
Oct 29
MKE8:45 amMilwaukee-Mitchell
4h 15m
1 stop
STL1:00 pmLambert-St Louis
Nov 2
STL5:05 amLambert-St Louis
13h 29m
1 stop
MKE6:34 pmMilwaukee-Mitchell
$345
American Airlines
Nov 12
MKE7:40 amMilwaukee-Mitchell
5h 10m
1 stop
STL12:50 pmLambert-St Louis
Nov 15
STL6:00 amLambert-St Louis
5h 08m
1 stop
MKE11:08 amMilwaukee-Mitchell
$353

momondo Fare Finder

 
Use the filters below to find and compare flights from Milwaukee to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MilwaukeeSt. Louis

MKE Milwaukee-Mitchell - STL Lambert-St Louis

MKESTL

Milwaukee-Mitchell

Thu 11/12

7:55 am-9:20 am

Nonstop1h 25m

Lambert-St Louis

Fri 11/13

9:50 pm-11:10 pm

Nonstop1h 20m

$297
Quickest round-trip

MilwaukeeSt. Louis

MKE Milwaukee-Mitchell - STL Lambert-St Louis

MKESTL

Milwaukee-Mitchell

Tue 11/10

8:00 am-9:30 am

Nonstop1h 30m

Lambert-St Louis

Tue 11/17

8:30 am-9:40 am

Nonstop1h 10m

$297

MilwaukeeSt. Louis

MKE Milwaukee-Mitchell - STL Lambert-St Louis

MKESTL

Milwaukee-Mitchell

Tue 11/10

8:00 am-9:30 am

Nonstop1h 30m

Lambert-St Louis

Tue 11/17

8:15 pm-9:30 pm

Nonstop1h 15m

$297

MilwaukeeSt. Louis

MKE Milwaukee-Mitchell - STL Lambert-St Louis

MKESTL

Milwaukee-Mitchell

Mon 11/23

7:55 am-9:20 am

Nonstop1h 25m

Lambert-St Louis

Fri 11/27

9:50 pm-11:10 pm

Nonstop1h 20m

$297

MilwaukeeSt. Louis

MKE Milwaukee-Mitchell - STL Lambert-St Louis

MKESTL

Milwaukee-Mitchell

Mon 11/23

8:35 am-12:10 pm

1 stop3h 35m

Lambert-St Louis

Fri 11/27

9:40 am-2:58 pm

1 stop5h 18m

$307

MilwaukeeSt. Louis

MKE Milwaukee-Mitchell - STL Lambert-St Louis

MKESTL

Milwaukee-Mitchell

Tue 11/10

2:23 pm-7:23 pm

1 stop5h 00m

Lambert-St Louis

Tue 11/17

9:40 am-1:32 pm

1 stop3h 52m

$307

MilwaukeeSt. Louis

MKE Milwaukee-Mitchell - STL Lambert-St Louis

MKESTL

Milwaukee-Mitchell

Thu 11/12

5:04 am-10:53 am

1 stop5h 49m

Lambert-St Louis

Thu 11/19

10:56 am-2:30 pm

1 stop3h 34m

$307

MilwaukeeSt. Louis

MKE Milwaukee-Mitchell - STL Lambert-St Louis

MKESTL

Milwaukee-Mitchell

Thu 11/12

8:40 am-12:50 pm

1 stop4h 10m

Lambert-St Louis

Fri 11/13

5:01 am-11:08 am

1 stop6h 07m

$307

MilwaukeeSt. Louis

MKE Milwaukee-Mitchell - STL Lambert-St Louis

MKESTL

Milwaukee-Mitchell

Fri 11/6

12:03 pm-3:43 pm

1 stop3h 40m

Lambert-St Louis

Mon 11/16

5:00 am-8:35 am

1 stop3h 35m

$307

MilwaukeeSt. Louis

MKE Milwaukee-Mitchell - STL Lambert-St Louis

MKESTL

Milwaukee-Mitchell

Tue 11/10

7:40 am-12:50 pm

1 stop5h 10m

Lambert-St Louis

Thu 11/12

6:00 am-11:08 am

1 stop5h 08m

$307

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to St. Louis from

How to get the cheapest flight ticket from Milwaukee to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to St. Louis?

In general, October is the cheapest month to fly from Milwaukee to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $306. The month of August is another great option to travel to St. Louis, with average flight prices from Milwaukee averaging around $334.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Wednesday when prices can be found for as low as $369. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $516. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Milwaukee at noon is the least expensive time of day to depart. momondo users have found prices as low as $331 when looking at flights departing at noon. In the morning is when there is more demand to fly to St. Louis, so prices are often more expensive at around $439 per ticket.

What is the cheapest Milwaukee-Mitchell to Lambert-St Louis flight route?

Fly from Milwaukee-Mitchell to Lambert-St Louis for the best Milwaukee-Mitchell - Lambert-St Louis flight prices

What cabin class options are available on Milwaukee to St. Louis flights?

There is only 1 cabin class available to choose from on Milwaukee to St. Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Milwaukee to St. Louis flights?

You could potentially save up to 26% on your flight if you consider stops on a Milwaukee to St. Louis flight.

How have Milwaukee to St. Louis flight prices changed over time?

As of October 2026, prices for Milwaukee to St. Louis flights are approximately 437% more expensive when compared to flights at the same time last year.

When to book flights from Milwaukee to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Milwaukee to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Milwaukee to St. Louis (MKE to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Milwaukee to St. Louis

Best Price Found

$144

Fastest flight time

1h 15m

Direct flights

Mon, Tue, Wed, Thu, Fri and Sat

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Milwaukee in the past 72 hours is $144. The best round-trip flight deal from Milwaukee to St. Louis found on momondo in the last 72 hours is $297.
The fastest flight from Milwaukee to St. Louis takes 1h 15m
Direct flights go from Milwaukee to St. Louis on Monday, Tuesday, Wednesday, Thursday, Friday and Saturday. There are no airlines offering direct flights.
There is 1 airport in St. Louis. From Milwaukee there are direct flights to Lambert-St Louis (STL).
Search flight deals

Frequently asked questions about flying from Milwaukee to St. Louis

  • How far is Milwaukee-Mitchell to Lambert-St Louis by plane?

    The straight-line distance from Milwaukee-Mitchell to Lambert-St Louis is 327.2 mi. Flights usually cover this in 1h 15m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Milwaukee-Mitchell Airport to Lambert-St Louis Airport?

    Prices for flights from Milwaukee-Mitchell Airport to Lambert-St Louis Airport refresh daily.

  • How many operators does momondo search for flights from Milwaukee-Mitchell Airport to Lambert-St Louis Airport?

  • How old do you have to be to fly from Milwaukee-Mitchell Airport to Lambert-St Louis Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Milwaukee-Mitchell Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Milwaukee to St. Louis?

  • What is the most popular airline from Milwaukee to St. Louis?

Best airlines flying from Milwaukee to St. Louis

Compare and see reviews for airlines that fly from Milwaukee to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $174Free CancellationRating
7.4
10,366 reviews
Search United Airlines flights
SouthwestPriceFrom $283Free CancellationRating
7.9
4,216 reviews
Search Southwest flights

  • Southwest Flights From Milwaukee to St. Louis

    Southwest is one of the most popular airlines flying from Milwaukee to St. Louis, operating 3 flights/week on average for this route. A good Southwest flight deal for Milwaukee to St. Louis starts from $283 round-trip, up to an average price of $398. Our users have rated Southwest at 7.9/10.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Fairview Heights
Chesterfield
Maryland Heights
St. Peters
Alton
Florissant
Collinsville
Farmington
Hermann
Clayton
Festus
Fenton
O'Fallon
Edwardsville
Eureka
Wentzville
Litchfield
Grafton
Waterloo

Why use momondo?

Why should I use momondo to find a flight deal from Milwaukee to St. Louis?

Finding the right flight to St. Louis from Milwaukee is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to St. Louis quick and easy, saving you time and money.

Can I find flights from Milwaukee to St. Louis with flexible booking policies on momondo?

All flight searches from Milwaukee to St. Louis on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Milwaukee to St. Louis?

momondo helps you find the best flight between Milwaukee and St. Louis by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Milwaukee to St. Louis right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Milwaukee to St. Louis flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your St. Louis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 11/14
Sat 11/21
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States