Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Milwaukee to St. Louis from $73

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Milwaukee to St. Louis departing on 2/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

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

Find the cheapest flights from Milwaukee to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
11:51 am - 7:29 pm
MKE
-
STL
7h 38m
1 stop
American Airlines Logo
9:37 am - 12:43 pm
STL
-
MKE
3h 06m
1 stop
$159American Airlines
Tue, Feb 24 - Wed, Feb 25
United Airlines Logo
6:00 am - 10:36 am
MKE
-
STL
4h 36m
1 stop
United Airlines Logo
9:55 am - 3:20 pm
STL
-
MKE
5h 25m
1 stop
$191United Airlines
Thu, Feb 19 - Sat, Feb 21
Southwest Logo
2:55 pm - 4:15 pm
MKE
-
STL
1h 20mnonstop
Southwest Logo
8:25 am - 9:40 am
STL
-
MKE
1h 15mnonstop
$248Southwest
Sat, Apr 18 - Wed, Apr 22
Southwest Logo
5:30 am - 7:05 am
MKE
-
STL
1h 35mnonstop
Southwest Logo
10:15 am - 5:00 pm
STL
-
MKE
6h 45m
1 stop
$253Southwest
Tue, Feb 24 - Wed, Feb 25
American Airlines Logo
8:15 am - 11:24 am
MKE
-
STL
3h 09m
1 stop
American Airlines Logo
6:00 am - 10:51 am
STL
-
MKE
4h 51m
1 stop
$255American Airlines
Sun, Apr 19 - Wed, Apr 22
Southwest Logo
12:40 pm - 9:15 pm
MKE
-
STL
8h 35m
1 stop
Southwest Logo
9:00 pm - 10:15 pm
STL
-
MKE
1h 15mnonstop
$258Southwest
Sat, Apr 18 - Wed, Apr 22
United Airlines Logo
2:40 pm - 9:05 pm
MKE
-
STL
6h 25m
1 stop
United Airlines Logo
6:55 pm - 10:28 pm
STL
-
MKE
3h 33m
1 stop
$271United Airlines
Fri, Feb 27 - Mon, Mar 2
Southwest Logo
5:40 am - 10:30 am
MKE
-
STL
4h 50m
1 stop
Southwest Logo
2:30 pm - 9:45 pm
STL
-
MKE
7h 15m
2 stops
$273Southwest
Sat, Apr 18 - Wed, Apr 22
Southwest Logo
5:40 am - 1:35 pm
MKE
-
STL
7h 55m
2 stops
Southwest Logo
3:15 pm - 10:35 pm
STL
-
MKE
7h 20m
2 stops
$278Southwest
Sat, Apr 18 - Wed, Apr 22
United Airlines Logo
1:25 pm - 6:00 pm
MKE
-
STL
4h 35m
1 stop
United Airlines Logo
7:00 pm - 10:13 pm
STL
-
MKE
3h 13m
1 stop
$289United Airlines
Tue, Mar 24 - Fri, Mar 27

Delta flights from Milwaukee to St. Louis

Our best Delta deals on Milwaukee to St. Louis flight tickets
Delta
Mar 27
MKE12:16 pmMilwaukee-Mitchell
4h 49m
1 stop
STL5:05 pmLambert-St Louis
Mar 30
STL1:39 pmLambert-St Louis
4h 14m
1 stop
MKE5:53 pmMilwaukee-Mitchell
$385
Delta
Feb 14
MKE11:15 amMilwaukee-Mitchell
5h 27m
1 stop
STL4:42 pmLambert-St Louis
Feb 16
STL6:35 amLambert-St Louis
5h 59m
1 stop
MKE12:34 pmMilwaukee-Mitchell
$401

Southwest flights from Milwaukee to St. Louis

Our best Southwest deals on Milwaukee to St. Louis flight tickets
Southwest
Apr 18
MKE2:55 pmMilwaukee-Mitchell
1h 20m
STL4:15 pmLambert-St Louis
Apr 22
STL8:25 amLambert-St Louis
1h 15m
MKE9:40 amMilwaukee-Mitchell
$248
Southwest
Feb 24
MKE5:30 amMilwaukee-Mitchell
1h 35m
STL7:05 amLambert-St Louis
Feb 25
STL10:15 amLambert-St Louis
6h 45m
1 stop
MKE5:00 pmMilwaukee-Mitchell
$253
Southwest
Apr 18
MKE12:40 pmMilwaukee-Mitchell
8h 35m
1 stop
STL9:15 pmLambert-St Louis
Apr 22
STL9:00 pmLambert-St Louis
1h 15m
MKE10:15 pmMilwaukee-Mitchell
$258

momondo Fare Finder

 
Customize your flight search to find flights from Milwaukee to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated January 29, 2026.
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

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Tue 2/24

11:51 am-7:29 pm

1 stop7h 38m

Lambert-St Louis

Wed 2/25

9:37 am-12:43 pm

1 stop3h 06m

$159

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Thu 2/19

6:00 am-10:36 am

1 stop4h 36m

Lambert-St Louis

Sat 2/21

9:55 am-3:20 pm

1 stop5h 25m

$191

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Sat 4/18

2:55 pm-4:15 pm

Nonstop1h 20m

Lambert-St Louis

Wed 4/22

8:25 am-9:40 am

Nonstop1h 15m

$248

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Tue 2/24

5:30 am-7:05 am

Nonstop1h 35m

Lambert-St Louis

Wed 2/25

10:15 am-5:00 pm

1 stop6h 45m

$253

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Sun 4/19

8:15 am-11:24 am

1 stop3h 09m

Lambert-St Louis

Wed 4/22

6:00 am-10:51 am

1 stop4h 51m

$255

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Sat 4/18

12:40 pm-9:15 pm

1 stop8h 35m

Lambert-St Louis

Wed 4/22

9:00 pm-10:15 pm

Nonstop1h 15m

$258

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Fri 2/27

2:40 pm-9:05 pm

1 stop6h 25m

Lambert-St Louis

Mon 3/2

6:55 pm-10:28 pm

1 stop3h 33m

$271

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Sat 4/18

5:40 am-10:30 am

1 stop4h 50m

Lambert-St Louis

Wed 4/22

2:30 pm-9:45 pm

2 stops7h 15m

$273

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Sat 4/18

5:40 am-1:35 pm

2 stops7h 55m

Lambert-St Louis

Wed 4/22

3:15 pm-10:35 pm

2 stops7h 20m

$278

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Tue 3/24

1:25 pm-6:00 pm

1 stop4h 35m

Lambert-St Louis

Fri 3/27

7:00 pm-10:13 pm

1 stop3h 13m

$289

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, August 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 $286. The month of October is another great option to travel to St. Louis, with average flight prices from Milwaukee averaging around $287.

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 $345. 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 $428. 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 $366 when looking at flights departing at noon. In the evening is when there is more demand to fly to St. Louis, so prices are often more expensive at around $509 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-Mitchell to Lambert-St Louis flights?

There is only 1 cabin class available to choose from on Milwaukee-Mitchell to Lambert-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 11% 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 January 2026, prices for Milwaukee to St. Louis flights are approximately 30% 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

$166

Fastest flight time

1h 20m

Direct flights

Every day

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Milwaukee in the past 72 hours is $166. The best round-trip flight deal from Milwaukee to St. Louis found on momondo in the last 72 hours is $329.
The fastest flight from Milwaukee to St. Louis takes 1h 20m
Direct flights go from Milwaukee to St. Louis every day.
There is 1 airport in St. Louis. From Milwaukee there are direct flights to Lambert-St Louis (STL).
Search flight deals

  • 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 20m, 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 $156Free CancellationRating
7.4
9,215 reviews
Search United Airlines flights
American AirlinesPriceFrom $158Free CancellationRating
7.2
11,205 reviews
Search American Airlines flights
SouthwestPriceFrom $227Free CancellationRating
8.0
4,267 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 10 flights/week on average for this route. A good Southwest flight deal for Milwaukee to St. Louis starts from $227 round-trip, up to an average price of $371. Our users have rated Southwest at 8.0/10.

Traveling to a place near St. Louis?

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

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 2/28
Sat 3/7
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States