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$95+ 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 5/31. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MKE
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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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 May 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$199
(American Airlines)

One-way from

$95
(American Airlines)

Popular in

February

Cheapest in

April

Average price

$314

Good round-trip deal

$255 or less

Good one-way deal

$141 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.
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From Lambert-St Louis to Milwaukee-Mitchell
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One-way flight from Lambert-St Louis to Milwaukee-Mitchell
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Highest demand for flights based on searches. 19% potential increase in price ($81 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Price to beat on a round-trip flight from Lambert-St Louis to Milwaukee-Mitchell.
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Price to beat on a one-way flight from Lambert-St Louis to Milwaukee-Mitchell.
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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 May 1, 2025.

This American Airlines deal was found by Cheapflights users on 4/29. 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.
Mon 6/94:37 pmSTL - MKE
1 stop7h 22mAmerican Airlines
Wed 6/115:13 pmMKE - STL
1 stop3h 17mAmerican Airlines
Deal found 4/29$199
This Booking.com deal was found by Cheapflights users on 4/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/108:15 pmSTL - MKE
1 stop19h 10mFrontier
Fri 6/67:56 pmMKE - STL
1 stop14h 12mFrontier
Deal found 4/30$211
This Southwest deal was found by Cheapflights users on 4/29. 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.
Mon 6/910:30 pmSTL - MKE
Nonstop1h 10mSouthwest
Wed 6/115:25 amMKE - STL
Nonstop1h 15mSouthwest
Deal found 4/29$241
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/611:23 amSTL - MKE
1 stop5h 10mDelta
Sun 8/106:30 amMKE - STL
1 stop4h 08mDelta
Deal found 4/29$284
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Thu 7/178:00 amSTL - MKE
1 stop3h 35mUnited Airlines
Mon 7/215:31 pmMKE - STL
1 stop5h 14mUnited Airlines
Deal found 4/29$303
This Mytrip deal was found by Cheapflights users on 4/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1311:28 amSTL - MKE
2 stops30h 41mSpirit Airlines
Mon 6/163:00 pmMKE - STL
1 stop3h 18mSpirit Airlines
Deal found 4/30$329
This Mytrip deal was found by Cheapflights users on 4/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1010:10 amSTL - MKE
3 stops25h 17mMultiple Airlines
Fri 6/66:05 pmMKE - STL
1 stop17h 20mMultiple Airlines
Deal found 4/30$340

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 May 1, 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

Mon 6/9

4:37 pm-11:59 pm

1 stop7h 22m

Milwaukee-Mitchell

Wed 6/11

5:13 pm-8:30 pm

1 stop3h 17m

$199

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Sat 5/10

8:15 pm-3:25 pm

1 stop19h 10m

Milwaukee-Mitchell

Fri 6/6

7:56 pm-10:08 am

1 stop14h 12m

$211

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Mon 6/9

10:30 pm-11:40 pm

Nonstop1h 10m

Milwaukee-Mitchell

Wed 6/11

5:25 am-6:40 am

Nonstop1h 15m

$241

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Wed 8/6

11:23 am-4:33 pm

1 stop5h 10m

Milwaukee-Mitchell

Sun 8/10

6:30 am-10:38 am

1 stop4h 08m

$284

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Thu 7/17

8:00 am-11:35 am

1 stop3h 35m

Milwaukee-Mitchell

Mon 7/21

5:31 pm-10:45 pm

1 stop5h 14m

$303

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Fri 6/13

11:28 am-6:09 pm

2 stops30h 41m

Milwaukee-Mitchell

Mon 6/16

3:00 pm-6:18 pm

1 stop3h 18m

$329

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Sat 5/10

10:10 am-11:27 am

3 stops25h 17m

Milwaukee-Mitchell

Fri 6/6

6:05 pm-11:25 am

1 stop17h 20m

$340

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Sat 5/31

3:58 pm-11:02 pm

1 stop7h 04m

$95

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Wed 5/14

8:15 pm-2:48 pm

1 stop18h 33m

$97

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Tue 6/17

9:25 am-10:40 am

Nonstop1h 15m

$114

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 14 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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Milwaukee flight deals on Cheapflights vs. FlightHub >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, February is the cheapest month in which you can book a flight from St. Louis to Milwaukee (average of $280). Flying from St. Louis to Milwaukee in June is currently the most expensive (average of $376). 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 May 1, 2025.

It’s typically best to fly out from St. Louis to Milwaukee in the evening. Doing so could potentially save you 38% on the flight price compared to flying at noon, which is usually more expensive.

Rainfall in Milwaukee by month

Plan your trip to Milwaukee by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Milwaukee ranges from 1.4 - 4.0 inches per month. June is typically the wettest month, when rainfall can reach 4.0 in. January is typically the driest time to visit Milwaukee when rainfall is around 1.4 in.

Temperature in Milwaukee by month

Plan your trip to Milwaukee by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Milwaukee, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

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 May 1, 2025.
To help decide which airline to fly from St. Louis to Milwaukee, see what other customers have to say about Southwest, Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.6

Food

7.1

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Southwest
8.0
Very good
4,294 reviews
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.6

Food

7.1

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Delta
8.0
Very good
7,934 reviews
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.6

Food

7.1

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
United Airlines
7.4
Good
8,696 reviews
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.6

Food

7.1

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.6

Food

7.1

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Spirit Airlines
6.3
Okay
7,963 reviews
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.6

Food

7.1

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

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.

  • What airports do I use to fly from St. Louis to Milwaukee?

    To fly from St. Louis to Milwaukee, you need to book a flight from Lambert-St Louis (STL) to Milwaukee-Mitchell (MKE). Nonstop flights to Milwaukee-Mitchell from Lambert-St Louis take 1h 10m on average. When it comes time to book airfare, you have a few options: there is 1 outbound flight from Lambert-St Louis to Milwaukee-Mitchell offered by 4 different airlines.

  • 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.

  • 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 $199. Additional round-trip tickets that might be worth considering are offered by Frontier and Southwest, with the lowest prices starting at $211 and $241, respectively. These flights start at 41% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from St. Louis to Milwaukee one-way?

    $95 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Frontier and Southwest, with prices starting from $97 and $114, respectively.

  • 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 $269, our data indicates the cheapest price to be $127. The most popular route (Lambert-St Louis - Milwaukee-Mitchell), is priced around $209.

  • 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, February is the cheapest month in which you can book a flight from St. Louis to Milwaukee (average of $280). Flying from St. Louis to Milwaukee in June is currently the most expensive (average of $376). 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 St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Mequon
Pewaukee
Sheboygan
Oak Creek
Wauwatosa

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Top 4 airlines flying from St. Louis to Milwaukee

Discover the top 4 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$156Average$217FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$158Average$278FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$158Average$355FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$253Average$329FlexibilityNo cancel feeOn-time63%

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