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Cheap flights from Milwaukee to St. Louis from $55

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 2/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Milwaukee to St. Louis

Cheap round-trip flights

These are some of the best round-trip flight deals from Milwaukee to St. Louis that have been recently found on momondo from popular airlines, departing in the coming months.
10:32 am - 9:16 amMKE-STL
22h 44m1 stop
7:04 pm - 9:32 amSTL-MKE
14h 28m1 stop
$150Frontier
Find Deal
Sun, Mar 2 - Wed, Mar 5
1:22 pm - 7:33 pmMKE-STL
6h 11m1 stop
11:39 am - 4:43 pmSTL-MKE
5h 04m1 stop
$159American Airlines
Find Deal
Thu, Feb 27 - Thu, Mar 6
3:25 pm - 7:49 pmMKE-STL
4h 24m1 stop
5:36 pm - 9:59 pmSTL-MKE
4h 23m1 stop
$172United Airlines
Find Deal
Sat, Mar 1 - Mon, Mar 3
7:59 am - 1:56 pmMKE-STL
5h 57m1 stop
5:06 am - 12:36 pmSTL-MKE
7h 30m1 stop
$173American Airlines
Find Deal
Tue, Mar 4 - Fri, Mar 7
6:55 pm - 11:03 pmMKE-STL
4h 08m1 stop
6:00 am - 10:10 amSTL-MKE
4h 10m1 stop
$177Delta
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Tue, Mar 25 - Thu, Mar 27
7:35 pm - 11:30 pmMKE-STL
3h 55m1 stop
6:00 am - 11:13 amSTL-MKE
5h 13m1 stop
$182Delta
Find Deal
Fri, Apr 18 - Mon, Apr 21
11:25 am - 3:47 pmMKE-STL
4h 22m1 stop
5:35 pm - 9:17 pmSTL-MKE
3h 42m1 stop
$244United Airlines
Find Deal
Thu, Apr 3 - Sun, Apr 6
5:15 am - 7:00 amMKE-STL
1h 45mnonstop
9:40 am - 10:55 amSTL-MKE
1h 15mnonstop
$255Southwest
Find Deal
Thu, Feb 27 - Thu, Mar 6
7:35 pm - 1:30 amMKE-STL
5h 55m1 stop
9:40 am - 10:55 amSTL-MKE
1h 15mnonstop
$265Southwest
Find Deal
Thu, Feb 27 - Thu, Mar 6
4:05 pm - 4:45 pmMKE-STL
24h 40m3 stops
6:47 pm - 3:19 pmSTL-MKE
20h 32m2 stops
Mon, Mar 24 - Tue, Mar 25

Delta flights from Milwaukee to St. Louis

Our best Delta deals on Milwaukee to St. Louis flight tickets
Delta
Mar 25
MKE6:55 pmMilwaukee-Mitchell
4h 08m
1 stop
STL11:03 pmLambert-St Louis
Mar 27
STL6:00 amLambert-St Louis
4h 10m
1 stop
MKE10:10 amMilwaukee-Mitchell
Delta
Apr 18
MKE7:35 pmMilwaukee-Mitchell
3h 55m
1 stop
STL11:30 pmLambert-St Louis
Apr 21
STL6:00 amLambert-St Louis
5h 13m
1 stop
MKE11:13 amMilwaukee-Mitchell
Delta
Mar 14
MKE6:55 pmMilwaukee-Mitchell
4h 08m
1 stop
STL11:03 pmLambert-St Louis
Mar 22
STL6:00 amLambert-St Louis
4h 10m
1 stop
MKE10:10 amMilwaukee-Mitchell

United Airlines flights from Milwaukee to St. Louis

Our best United Airlines deals on Milwaukee to St. Louis flight tickets
United Airlines
Mar 1
MKE3:25 pmMilwaukee-Mitchell
4h 24m
1 stop
STL7:49 pmLambert-St Louis
Mar 3
STL5:36 pmLambert-St Louis
4h 23m
1 stop
MKE9:59 pmMilwaukee-Mitchell
United Airlines
Apr 3
MKE11:25 amMilwaukee-Mitchell
4h 22m
1 stop
STL3:47 pmLambert-St Louis
Apr 6
STL5:35 pmLambert-St Louis
3h 42m
1 stop
MKE9:17 pmMilwaukee-Mitchell
United Airlines
Feb 27
MKE10:15 amMilwaukee-Mitchell
5h 25m
1 stop
STL3:40 pmLambert-St Louis
Mar 4
STL8:40 amLambert-St Louis
12h 28m
2 stops
MKE9:08 pmMilwaukee-Mitchell

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, May 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 $226. The month of July is another great option to travel to St. Louis, with average flight prices from Milwaukee averaging around $227.

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 Tuesday when prices can be found for as low as $386. 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 Saturday because tickets tend to average around $446. 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 in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $394 when looking at flights departing in the afternoon. In the morning is when there is more demand to fly to St. Louis, so prices are often more expensive at around $411 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 are 1 cabin classes 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.

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

As of January 2025, prices for Milwaukee to St. Louis flights are approximately 24% cheaper 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

$55

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 $55. The best round-trip flight deal from Milwaukee to St. Louis found on momondo in the last 72 hours is $150.
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 near St. Louis: Lambert-St Louis (STL)

  • 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
DeltaPriceFrom $157Free CancellationRating
8.0
8,456 reviews
Search Delta flights
American AirlinesPriceFrom $158Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $241Free CancellationRating
7.4
8,913 reviews
Search United Airlines flights
SouthwestPriceFrom $244Free CancellationRating
8.1
4,587 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 $244 round-trip, up to an average price of $327. Our users have rated Southwest at 8.1/10.


Traveling to a place near St. Louis?

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

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.


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