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Cheap flights from Milwaukee to St. Louis from $54

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 12/18. 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.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Milwaukee to St. Louis.

Cheap last minute flights

Planning a quick getaway from Milwaukee to St. Louis? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to St. Louis, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Milwaukee to St. Louis

Find recent round-trip train or bus tickets from Milwaukee to St. Louis.

All round-trip flight deals to St. Louis

The cheapest plane tickets to St. Louis found on KAYAK recently.
10:47 am - 11:24 pmMKE-STL
12h 37m1 stop
5:02 pm - 9:47 amSTL-MKE
16h 45m1 stop
$118Frontier
Find Deal
Mon, Dec 9 - Wed, Dec 11
10:54 am - 11:27 pmMKE-STL
12h 33m1 stop
5:05 pm - 9:54 amSTL-MKE
16h 49m1 stop
$138Frontier
Find Deal
Tue, Jan 14 - Wed, Jan 15
1:22 pm - 7:30 pmMKE-STL
6h 08m1 stop
5:45 am - 11:04 amSTL-MKE
5h 19m1 stop
$162American Airlines
Find Deal
Thu, Feb 27 - Tue, Mar 4
6:10 am - 12:56 pmMKE-STL
6h 46m1 stop
10:16 am - 2:10 pmSTL-MKE
3h 54m1 stop
$166American Airlines
Find Deal
Mon, Dec 16 - Thu, Dec 19
6:35 am - 8:00 amMKE-STL
1h 25mnonstop
8:15 pm - 9:30 pmSTL-MKE
1h 15mnonstop
$242Southwest
Find Deal
Mon, Dec 16 - Thu, Dec 19
6:35 am - 8:00 amMKE-STL
1h 25mnonstop
5:50 am - 10:45 amSTL-MKE
4h 55m1 stop
$251Southwest
Find Deal
Mon, Dec 16 - Thu, Dec 19
5:09 pm - 9:43 pmMKE-STL
4h 34m1 stop
6:04 am - 10:29 amSTL-MKE
4h 25m1 stop
$253Delta
Find Deal
Wed, Dec 25 - Sun, Dec 29
3:15 pm - 9:33 pmMKE-STL
6h 18m1 stop
6:30 am - 10:04 amSTL-MKE
3h 34m1 stop
$330Delta
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Fri, May 16 - Sun, May 18
3:57 pm - 9:36 pmMKE-STL
5h 39m1 stop
8:05 am - 11:52 amSTL-MKE
3h 47m1 stop
$386United Airlines
Find Deal
Wed, Dec 4 - Thu, Dec 5
8:25 am - 2:36 pmMKE-STL
6h 11m1 stop
8:25 am - 9:08 pmSTL-MKE
12h 43m2 stops
$426United Airlines
Find Deal
Thu, Feb 27 - Tue, Mar 4
2:46 pm - 11:40 pmMKE-STL
8h 54m1 stop
$54Frontier
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Wed, Dec 18
10:54 am - 11:31 pmMKE-STL
12h 37m1 stop
$60Frontier
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Tue, Jan 21
11:19 am - 7:29 pmMKE-STL
8h 10m1 stop
$83American Airlines
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Thu, Feb 20
6:00 am - 10:54 amMKE-STL
4h 54m1 stop
$88Delta
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Sat, Jan 18
11:00 am - 2:49 pmMKE-STL
3h 49m1 stop
$93Delta
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Thu, Dec 19
6:35 am - 8:00 amMKE-STL
1h 25mnonstop
$121Southwest
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Tue, Dec 17
11:30 am - 3:38 pmMKE-STL
4h 08m1 stop
$123United Airlines
Find Deal
Mon, Jan 20
6:50 am - 3:40 pmMKE-STL
8h 50m2 stops
$135Southwest
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Tue, Dec 17
6:45 am - 10:54 amMKE-STL
4h 09m1 stop
$160United Airlines
Find Deal
Fri, Jan 17
6:32 pm - 11:58 pmMKE-STL
5h 26m1 stop
$277American Airlines
Find Deal
Mon, Dec 2
6:00 am - 10:40 amMKE-STL
4h 40m1 stop
6:00 am - 9:59 amSTL-MKE
3h 59m1 stop
$603Delta
Find Deal
Mon, Nov 25 - Sat, Nov 30
7:50 pm - 9:10 pmMKE-STL
1h 20mnonstop
3:10 pm - 10:25 pmSTL-MKE
7h 15m1 stop
$604Southwest
Find Deal
Mon, Nov 25 - Wed, Nov 27
7:30 pm - 11:45 pmMKE-STL
4h 15m1 stop
7:45 am - 4:10 pmSTL-MKE
8h 25m2 stops
$608Southwest
Find Deal
Mon, Nov 25 - Wed, Nov 27
12:05 pm - 9:55 pmMKE-STL
9h 50m1 stop
9:45 pm - 11:00 pmSTL-MKE
1h 15mnonstop
$634Southwest
Find Deal
Tue, Nov 26 - Sun, Dec 1
12:07 pm - 3:39 pmMKE-STL
3h 32m1 stop
5:40 pm - 9:14 pmSTL-MKE
3h 34m1 stop
$647United Airlines
Find Deal
Tue, Nov 26 - Tue, Nov 26
8:25 am - 12:19 pmMKE-STL
3h 54m1 stop
5:40 pm - 8:39 pmSTL-MKE
2h 59m1 stop
$652United Airlines
Find Deal
Sat, Nov 23 - Tue, Nov 26
9:45 am - 11:05 amMKE-STL
1h 20mnonstop
4:45 pm - 9:35 pmSTL-MKE
4h 50m1 stop
$799Southwest
Find Deal
Tue, Nov 26 - Fri, Nov 29
7:50 pm - 9:10 pmMKE-STL
1h 20mnonstop
9:55 pm - 11:10 pmSTL-MKE
1h 15mnonstop
$800Southwest
Find Deal
Mon, Nov 25 - Wed, Nov 27
11:37 am - 7:30 pmMKE-STL
7h 53m2 stops
10:01 am - 2:29 pmSTL-MKE
4h 28m1 stop
$932American Airlines
Find Deal
Sat, Nov 23 - Mon, Nov 25
10:45 am - 8:57 pmMKE-STL
10h 12m2 stops
6:30 am - 10:02 amSTL-MKE
3h 32m1 stop
$1,621United Airlines
Find Deal
Tue, Nov 26 - Sun, Dec 1
6:35 am - 8:00 amMKE-STL
1h 25mnonstop
8:15 pm - 9:30 pmSTL-MKE
1h 15mnonstop
$242Southwest
Find Deal
Mon, Dec 16 - Thu, Dec 19
6:35 am - 8:00 amMKE-STL
1h 25mnonstop
8:15 pm - 9:30 pmSTL-MKE
1h 15mnonstop
$318Southwest
Find Deal
Mon, Dec 9 - Thu, Dec 12
4:45 pm - 6:05 pmMKE-STL
1h 20mnonstop
4:15 pm - 5:30 pmSTL-MKE
1h 15mnonstop
$352Southwest
Find Deal
Sat, Dec 21 - Sat, Dec 28
6:35 am - 8:00 amMKE-STL
1h 25mnonstop
8:15 pm - 9:30 pmSTL-MKE
1h 15mnonstop
$394Southwest
Find Deal
Thu, Dec 5 - Fri, Dec 6
6:35 am - 8:00 amMKE-STL
1h 25mnonstop
9:50 am - 11:05 amSTL-MKE
1h 15mnonstop
$574Southwest
Find Deal
Mon, Dec 9 - Wed, Dec 11

Frontier flights from Milwaukee to St. Louis

Our best Frontier deals on Milwaukee to St. Louis flight tickets
Frontier
Dec 9
MKE10:47 amMilwaukee-Mitchell
12h 37m
1 stop
STL11:24 pmLambert-St Louis
Dec 11
STL5:02 pmLambert-St Louis
16h 45m
1 stop
MKE9:47 amMilwaukee-Mitchell
Frontier
Jan 14
MKE10:54 amMilwaukee-Mitchell
12h 33m
1 stop
STL11:27 pmLambert-St Louis
Jan 15
STL5:05 pmLambert-St Louis
16h 49m
1 stop
MKE9:54 amMilwaukee-Mitchell
Frontier
Dec 6
MKE10:47 amMilwaukee-Mitchell
12h 37m
1 stop
STL11:24 pmLambert-St Louis
Dec 8
STL5:02 pmLambert-St Louis
16h 45m
1 stop
MKE9:47 amMilwaukee-Mitchell

American Airlines flights from Milwaukee to St. Louis

Our best American Airlines deals on Milwaukee to St. Louis flight tickets
American Airlines
Feb 27
MKE1:22 pmMilwaukee-Mitchell
6h 08m
1 stop
STL7:30 pmLambert-St Louis
Mar 4
STL5:45 amLambert-St Louis
5h 19m
1 stop
MKE11:04 amMilwaukee-Mitchell
American Airlines
Dec 16
MKE6:10 amMilwaukee-Mitchell
6h 46m
1 stop
STL12:56 pmLambert-St Louis
Dec 19
STL10:16 amLambert-St Louis
3h 54m
1 stop
MKE2:10 pmMilwaukee-Mitchell
American Airlines
Dec 25
MKE6:15 amMilwaukee-Mitchell
11h 09m
2 stops
STL5:24 pmLambert-St Louis
Dec 29
STL5:36 amLambert-St Louis
5h 13m
1 stop
MKE10:49 amMilwaukee-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 typical price of a round-trip flight between Milwaukee and St. Louis?

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

In general, July 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 $207. The month of May is another great option to travel to St. Louis, with average flight prices from Milwaukee averaging around $222.

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 Saturday when prices can be found for as low as $240. 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 Monday because tickets tend to average around $472. 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 $217 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 $330 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.

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

You could potentially save up to 46% 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 November 2024, prices for Milwaukee to St. Louis flights are approximately 38% 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

$54

Fastest flight time

1h 20m

Direct flights

Mon, Tue, Thu, Fri and Sun

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Milwaukee in the past 72 hours is $54. The best round-trip flight deal from Milwaukee to St. Louis found on momondo in the last 72 hours is $118.
The fastest flight from Milwaukee to St. Louis takes 1h 20m
Direct flights go from Milwaukee to St. Louis on Monday, Tuesday, Thursday, Friday and Sunday. The only airline offering direct flights is Southwest.
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
8,755 reviews
Search Delta flights
American AirlinesPriceFrom $158Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $226Free CancellationRating
8.1
5,005 reviews
Search Southwest flights
United AirlinesPriceFrom $241Free CancellationRating
7.4
9,172 reviews
Search United Airlines flights
  • Southwest Flights From Milwaukee to St. Louis

    Southwest is one of the most popular airlines flying from Milwaukee to St. Louis, operating 8 flights/week on average for this route. A good Southwest flight deal for Milwaukee to St. Louis starts from $226 round-trip, up to an average price of $318. Our users have rated Southwest at 8.1/10.


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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