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Cheap flights from St. Louis to Milwaukee from $88

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Milwaukee departing on 1/23. 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 St. Louis to Milwaukee

Cheap round-trip flights

These are some of the best round-trip flight deals from St. Louis to Milwaukee 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 St. Louis to Milwaukee.

Cheap last minute flights

Planning a quick getaway from St. Louis to Milwaukee? 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 Milwaukee, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from St. Louis to Milwaukee

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

All round-trip flight deals to Milwaukee

The cheapest plane tickets to Milwaukee found on KAYAK recently.
5:05 pm - 9:54 amSTL-MKE
16h 49m1 stop
10:54 am - 11:41 pmMKE-STL
12h 47m1 stop
$129Frontier
Find Deal
Mon, Feb 3 - Mon, Feb 10
5:05 pm - 9:54 amSTL-MKE
16h 49m1 stop
10:54 am - 11:31 pmMKE-STL
12h 37m1 stop
$148Frontier
Find Deal
Fri, Jan 17 - Wed, Jan 22
5:05 pm - 9:54 amSTL-MKE
16h 49m1 stop
10:54 am - 11:31 pmMKE-STL
12h 37m1 stop
$170Frontier
Find Deal
Fri, Jan 24 - Mon, Jan 27
5:05 pm - 9:54 amSTL-MKE
16h 49m1 stop
5:28 pm - 2:43 pmMKE-STL
21h 15m1 stop
Fri, Jan 24 - Mon, Jan 27
6:00 am - 10:27 amSTL-MKE
4h 27m1 stop
6:00 am - 10:54 amMKE-STL
4h 54m1 stop
$264Delta
Find Deal
Fri, Jan 24 - Fri, Jan 31
10:15 am - 5:15 pmSTL-MKE
7h 00m1 stop
3:35 pm - 4:55 pmMKE-STL
1h 20mnonstop
$310Southwest
Find Deal
Fri, Jan 17 - Wed, Jan 22
8:25 pm - 9:40 pmSTL-MKE
1h 15mnonstop
3:35 pm - 4:55 pmMKE-STL
1h 20mnonstop
$311Southwest
Find Deal
Fri, Jan 17 - Wed, Jan 22
8:20 pm - 9:35 pmSTL-MKE
1h 15mnonstop
8:00 am - 2:45 pmMKE-STL
6h 45m1 stop
$331Southwest
Find Deal
Fri, Jan 24 - Fri, Jan 31
8:00 am - 11:55 amSTL-MKE
3h 55m1 stop
4:00 pm - 9:45 pmMKE-STL
5h 45m1 stop
$377United Airlines
Find Deal
Thu, Jan 9 - Mon, Jan 13
8:15 am - 10:22 pmSTL-MKE
14h 07m2 stops
11:30 am - 3:38 pmMKE-STL
4h 08m1 stop
$523United Airlines
Find Deal
Fri, Jan 24 - Mon, Jan 27
6:30 am - 1:17 pmSTL-MKE
6h 47m1 stop
$88Delta
Find Deal
Thu, Jan 23
5:30 pm - 9:30 pmSTL-MKE
4h 00m1 stop
$119Delta
Find Deal
Thu, Feb 27
6:00 am - 10:27 amSTL-MKE
4h 27m1 stop
$132Delta
Find Deal
Fri, Jan 24
9:05 am - 10:20 amSTL-MKE
1h 15mnonstop
$135Southwest
Find Deal
Tue, Feb 25
9:15 am - 10:30 amSTL-MKE
1h 15mnonstop
$150Southwest
Find Deal
Sat, Jan 25
5:30 pm - 9:45 pmSTL-MKE
4h 15m1 stop
$165Delta
Find Deal
Fri, Feb 28
5:33 pm - 10:00 pmSTL-MKE
4h 27m1 stop
$195United Airlines
Find Deal
Sat, Mar 29
5:40 am - 6:05 pmSTL-MKE
12h 25m2 stops
$238American Airlines
Find Deal
Tue, Jan 28
6:30 am - 8:58 pmSTL-MKE
14h 28m2 stops
$242United Airlines
Find Deal
Tue, Feb 25
5:40 am - 5:47 pmSTL-MKE
12h 07m2 stops
$253American Airlines
Find Deal
Thu, Jan 23
8:25 pm - 9:40 pmSTL-MKE
1h 15mnonstop
3:35 pm - 4:55 pmMKE-STL
1h 20mnonstop
$311Southwest
Find Deal
Fri, Jan 17 - Wed, Jan 22
8:20 pm - 9:35 pmSTL-MKE
1h 15mnonstop
6:45 am - 8:15 amMKE-STL
1h 30mnonstop
$332Southwest
Find Deal
Fri, Jan 24 - Fri, Jan 31
9:30 am - 10:45 amSTL-MKE
1h 15mnonstop
8:20 am - 9:35 amMKE-STL
1h 15mnonstop
$372Southwest
Find Deal
Thu, Jun 19 - Sat, Jun 21

Frontier flights from St. Louis to Milwaukee

Our best Frontier deals on St. Louis to Milwaukee flight tickets
Frontier
Feb 3
STL5:05 pmLambert-St Louis
16h 49m
1 stop
MKE9:54 amMilwaukee-Mitchell
Feb 10
MKE10:54 amMilwaukee-Mitchell
12h 47m
1 stop
STL11:41 pmLambert-St Louis
Frontier
Jan 17
STL5:05 pmLambert-St Louis
16h 49m
1 stop
MKE9:54 amMilwaukee-Mitchell
Jan 22
MKE10:54 amMilwaukee-Mitchell
12h 37m
1 stop
STL11:31 pmLambert-St Louis
Frontier
Jan 24
STL5:05 pmLambert-St Louis
16h 49m
1 stop
MKE9:54 amMilwaukee-Mitchell
Jan 27
MKE10:54 amMilwaukee-Mitchell
12h 37m
1 stop
STL11:31 pmLambert-St Louis

United Airlines flights from St. Louis to Milwaukee

Our best United Airlines deals on St. Louis to Milwaukee flight tickets
United Airlines
Jan 9
STL8:00 amLambert-St Louis
3h 55m
1 stop
MKE11:55 amMilwaukee-Mitchell
Jan 13
MKE4:00 pmMilwaukee-Mitchell
5h 45m
1 stop
STL9:45 pmLambert-St Louis
United Airlines
Jan 24
STL8:15 amLambert-St Louis
14h 07m
2 stops
MKE10:22 pmMilwaukee-Mitchell
Jan 27
MKE11:30 amMilwaukee-Mitchell
4h 08m
1 stop
STL3:38 pmLambert-St Louis
United Airlines
Jan 9
STL9:44 amLambert-St Louis
4h 26m
1 stop
MKE2:10 pmMilwaukee-Mitchell
Jan 13
MKE1:05 pmMilwaukee-Mitchell
9h 15m
2 stops
STL10:20 pmLambert-St Louis

See travel insights to Milwaukee from

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

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 Milwaukee?

The cheapest month to fly to Milwaukee from St. Louis is in February. Flight prices, which tend to average around $185, are often lower during this time because this is during the off-season. The month of May is another great option to travel to Milwaukee, with average flight prices from St. Louis averaging around $245.

What is the cheapest day to depart on your flight to Milwaukee?

According to our data, Tuesday is the cheapest day to fly to Milwaukee from St. Louis. The lowest ticket price found for a Tuesday departure recently was $256. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from St. Louis to Milwaukee on a Monday will generally be more expensive and average around $366. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Milwaukee?

In the morning is the cheapest time of day to fly from St. Louis to Milwaukee when you can find flight prices for as low as $294. Flying to Milwaukee in the morning is an ideal time because this is during off-peak travel hours. In the evening is when there is more demand to fly to Milwaukee, so prices are often more expensive at around $329 per ticket.

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

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

What cabin class options are available on Lambert-St Louis to Milwaukee-Mitchell flights?

There are 1 cabin classes available to choose from on Lambert-St Louis to Milwaukee-Mitchell 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 St. Louis to Milwaukee flights?

You could potentially save up to 34% on your flight if you consider stops on a St. Louis to Milwaukee flight.

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

As of December 2024, prices for St. Louis to Milwaukee flights are approximately 64% more expensive when compared to flights at the same time last year.

When to book flights from St. Louis to Milwaukee

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

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

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

Best Price Found

$88

Fastest flight time

1h 15m

Direct flights

Mon, Wed, Fri, Sat and Sun

Airports in Milwaukee

1 airport
The best one-way flight to Milwaukee from St. Louis in the past 72 hours is $88. The best round-trip flight deal from St. Louis to Milwaukee found on momondo in the last 72 hours is $129.
The fastest flight from St. Louis to Milwaukee takes 1h 15m
Direct flights go from St. Louis to Milwaukee on Monday, Wednesday, Friday, Saturday and Sunday. The only airline offering direct flights is Southwest.
There is 1 airport near Milwaukee: Milwaukee-Mitchell (MKE)

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

    A flight from Lambert-St Louis to Milwaukee-Mitchell will travel around 327.2 mi. In terms of flight time, this usually takes a little over 1h 15m.

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

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Milwaukee-Mitchell Airport.

  • What documentation or ID do you need to fly to Milwaukee-Mitchell Airport?

    The travel and health documents you'll need for your trip to Milwaukee-Mitchell Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Milwaukee-Mitchell Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

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


Best airlines flying from St. Louis to Milwaukee

Compare and see reviews for airlines that fly from St. Louis to Milwaukee with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $156Free CancellationRating
8.0
8,570 reviews
Search Delta flights
United AirlinesPriceFrom $157Free CancellationRating
7.4
9,002 reviews
Search United Airlines flights
American AirlinesPriceFrom $174Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $254Free CancellationRating
8.1
4,752 reviews
Search Southwest flights
  • Southwest Flights From St. Louis to Milwaukee

    Southwest is one of the most popular airlines flying from St. Louis to Milwaukee, operating 12 flights/week on average for this route. A good Southwest flight deal for St. Louis to Milwaukee starts from $254 round-trip, up to an average price of $329. Our users have rated Southwest at 8.1/10.


Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from St. Louis to Milwaukee for you.

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

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

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

momondo provides multiple filters to help you find the best flight to Milwaukee from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Milwaukee from St. Louis are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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