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$63+ Cheap flights from St. Louis to Milwaukee (STL - MKE)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MKE
nov. 29 — dic. 61
sáb. 11/29
sáb. 12/6
1 adult, Economy
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Find flight deals from St. Louis to Milwaukee

Cheapest flights from St. Louis to Milwaukee
Explore the most affordable flight options available from St. Louis to Milwaukee. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/43:30 pmSTL - MKE
1 stop18h 09mMultiple Airlines
dom. 12/76:09 pmMKE - STL
1 stop14h 50mMultiple Airlines
Deal found 10/29$247
This Southwest deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/48:15 pmSTL - MKE
Nonstop1h 15mSouthwest
dom. 12/73:45 pmMKE - STL
1 stop7h 45mSouthwest
Deal found 10/29$330
This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/2310:24 amSTL - MKE
1 stop8h 24mFrontier
dom. 11/307:43 pmMKE - STL
1 stop28h 14mFrontier
Deal found 10/29$346
This Southwest deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/239:50 amSTL - MKE
Nonstop1h 15mSouthwest
dom. 11/305:10 amMKE - STL
Nonstop1h 25mSouthwest
Deal found 10/29$381
This United Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/145:24 pmSTL - MKE
1 stop4h 35mUnited Airlines
mar. 11/1810:53 amMKE - STL
1 stop4h 54mUnited Airlines
Deal found 10/30$493
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/511:05 amSTL - MKE
1 stop4h 02mUnited Airlines
mié. 11/55:13 pmMKE - STL
1 stop5h 32mUnited Airlines
Deal found 10/29$541
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/46:30 amSTL - MKE
1 stop3h 48mUnited Airlines
mié. 11/510:53 amMKE - STL
1 stop4h 56mUnited Airlines
Deal found 10/29$547
This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/66:22 pmSTL - MKE
2 stops24h 57mFrontier
lun. 11/108:04 pmMKE - STL
1 stop13h 03mFrontier
Deal found 10/29$577
This American Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/295:09 pmSTL - MKE
1 stop5h 21mAmerican Airlines
jue. 10/302:18 pmMKE - STL
1 stop4h 51mAmerican Airlines
Deal found 10/29$580

Cheap flight deals from St. Louis to Milwaukee

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Milwaukee (MKE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated octubre 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$235
(American Airlines)

One-way from

$63
(Trip.com)

Popular in

February

Cheapest in

April

Average price

$263

Good round-trip deal

$369 or less

Good one-way deal

$219 or less
Provider with most accurate pricing for Lambert-St Louis-Milwaukee-Mitchell flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Milwaukee-Mitchell flights.
Search Deals
From Lambert-St Louis to Milwaukee-Mitchell
Search Deals
One-way flight from Lambert-St Louis to Milwaukee-Mitchell
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($82 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Lambert-St Louis to Milwaukee-Mitchell.
Search Deals
Price to beat on a one-way flight from Lambert-St Louis to Milwaukee-Mitchell.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Milwaukee 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, Cheapflights users made 2,558,603 searches. Data last updated octubre 30, 2025.
Use the filters below to find and compare flights from St. Louis to Milwaukee that are best for you.

Fly from

St. Louis

Fly to

Milwaukee

Route

Depart

Return

Price

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

sáb. 2/28

5:14 am-11:02 am

1 stop5h 48m

Milwaukee-Mitchell

mar. 3/3

11:33 am-5:06 pm

1 stop5h 33m

$235

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

jue. 12/4

3:30 pm-9:39 am

1 stop18h 09m

Milwaukee-Mitchell

dom. 12/7

6:09 pm-8:59 am

1 stop14h 50m

$247

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

jue. 12/4

8:15 pm-9:30 pm

Nonstop1h 15m

Milwaukee-Mitchell

dom. 12/7

3:45 pm-11:30 pm

1 stop7h 45m

$330

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

dom. 11/23

10:24 am-6:48 pm

1 stop8h 24m

Milwaukee-Mitchell

dom. 11/30

7:43 pm-11:57 pm

1 stop28h 14m

$346

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

dom. 11/23

9:20 am-4:15 pm

1 stop6h 55m

Milwaukee-Mitchell

dom. 11/30

5:10 am-6:35 am

Nonstop1h 25m

$381

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

jue. 1/15

11:20 am-3:43 pm

1 stop4h 23m

$80

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

lun. 12/8

3:19 pm-9:47 pm

1 stop6h 28m

$80

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

jue. 1/8

9:57 am-1:53 pm

1 stop3h 56m

$80

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

mar. 1/13

4:49 pm-9:59 pm

1 stop5h 10m

$80

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

sáb. 2/14

2:19 pm-5:58 pm

1 stop3h 39m

$96

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 17 results
1
2

Compare providers for flights from St. Louis to Milwaukee

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Milwaukee in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Milwaukee flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-Milwaukee flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from St. Louis-Milwaukee flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Milwaukee flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Milwaukee flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Milwaukee

Have a flexible travel schedule? Discover the best time to fly to Milwaukee from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Milwaukee

What is the cheapest month to book a flight from St. Louis to Milwaukee?

Currently, November is the cheapest month in which you can book a flight from St. Louis to Milwaukee (average of $82). Flying from St. Louis to Milwaukee in August is currently the most expensive (average of $159). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to MKE?

Find hourly flight availability from St. Louis to Milwaukee. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated octubre 30, 2025.

It’s typically best to fly out from St. Louis to Milwaukee in the evening. Doing so could potentially save you 24% on the flight price compared to flying in the afternoon, which is usually more expensive.

Reviews of airlines servicing Milwaukee

Get insights into the airlines that provide service to Milwaukee. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Milwaukee. Reviews last updated octubre 30, 2025.
Peruse reviews from past customers who have flown with Southwest and American Airlines from St. Louis to Milwaukee to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,243 reviews

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,243 reviews
Southwest
8.0
Very good
4,243 reviews

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,035 reviews
Southwest
8.0
Very good
4,243 reviews

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Milwaukee. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this St. Louis to Milwaukee flight route?

    Within the past month, 1 users have taken a look at flights from Lambert-St Louis to Milwaukee-Mitchell.

  • How long is the flight from St. Louis to Milwaukee?

    There are many flights that can get you from St. Louis to Milwaukee in 5h 48m. Fly via American Airlines to get the fastest option. The distance from St. Louis to Milwaukee is about 317 mi.

  • What are the cheapest airlines flying from St. Louis to Milwaukee round-trip?

    Flying on American Airlines is currently your cheapest option to Milwaukee, with prices starting at $158. Another option worth looking into is Southwest, starting at $199 round trip. These flights start at 53% lower than the current average price 3 months from now.

  • What are the cheapest flights from St. Louis to Milwaukee?

    Looking for the cheapest flight from St. Louis to Milwaukee? While on average our users pay $379, our data indicates the cheapest price to be $58. The most popular route (Lambert-St Louis - Milwaukee-Mitchell), is priced around $247.

  • Can I find deals for flights from St. Louis to Milwaukee that include hotel bookings?

    Yes. In addition to deals on St. Louis to Milwaukee flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Milwaukee?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Milwaukee.

  • Can I find deals for business class flights from St. Louis to Milwaukee?

    Yes. Cheapflights offers flight deals from St. Louis to Milwaukee by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Milwaukee?

    Currently, November is the cheapest month in which you can book a flight from St. Louis to Milwaukee (average of $82). Flying from St. Louis to Milwaukee in August is currently the most expensive (average of $159). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Milwaukee?

Book flights to Milwaukee if you plan to visit one of these locations
Sheboygan
New Berlin
Oak Creek
Wauwatosa

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Alternative routes for St. Louis to Milwaukee

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Top 2 airlines flying from St. Louis to Milwaukee

Discover the top 2 airlines that operate flights from St. Louis to Milwaukee. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated octubre 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$158Average$391FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$199Average$331FlexibilityNo cancel feeOn-time63%

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