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$80+ 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 3/20. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MKE
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$149
(Mytrip)

One-way from

$80
(American Airlines)

Popular in

April

Cheapest in

May

Average price

$513

Good round-trip deal

$309 or less

Good one-way deal

$128 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. 4% potential increase in price ($16 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in February 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 February 20, 2025.

This Mytrip deal was found by Cheapflights users on 2/19. 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 3/75:24 pmSTL - MKE
1 stop18h 55mFrontier
Tue 3/111:19 pmMKE - STL
1 stop10h 30mFrontier
Deal found 2/19$149
This Southwest deal was found by Cheapflights users on 2/18. 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.
Thu 3/139:40 amSTL - MKE
Nonstop1h 15mSouthwest
Mon 3/177:40 amMKE - STL
Nonstop1h 25mSouthwest
Deal found 2/18$287
This Delta deal was found by Cheapflights users on 2/19. 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.
Thu 3/136:00 amSTL - MKE
1 stop4h 10mDelta
Mon 3/176:55 pmMKE - STL
1 stop4h 08mDelta
Deal found 2/19$307
This Mytrip deal was found by Cheapflights users on 2/19. 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.
Wed 3/1912:15 pmSTL - MKE
3 stops27h 31mMultiple Airlines
Wed 3/261:24 pmMKE - STL
2 stops28h 28mMultiple Airlines
Deal found 2/19$399
This United Airlines deal was found by Cheapflights users on 2/19. 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 3/66:30 amSTL - MKE
1 stop5h 29mUnited Airlines
Mon 3/1011:25 amMKE - STL
1 stop4h 06mUnited Airlines
Deal found 2/19$460
This American Airlines deal was found by Cheapflights users on 2/20. 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.
Fri 2/215:45 amSTL - MKE
1 stop5h 22mAmerican Airlines
Sun 2/232:53 pmMKE - STL
1 stop7h 50mAmerican Airlines
Deal found 2/20$586

Find flights from St. Louis to Milwaukee within your budget

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 February 20, 2025.

Fly from

St. Louis

Fly to

Milwaukee

Route

Depart

Return

Price

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Fri 3/7

5:24 pm-12:19 pm

1 stop18h 55m

Milwaukee-Mitchell

Tue 3/11

1:19 pm-11:49 pm

1 stop10h 30m

$149

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Thu 3/13

9:40 am-10:55 am

Nonstop1h 15m

Milwaukee-Mitchell

Mon 3/17

7:40 am-9:05 am

Nonstop1h 25m

$287

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Thu 3/13

6:00 am-10:10 am

1 stop4h 10m

Milwaukee-Mitchell

Mon 3/17

6:55 pm-11:03 pm

1 stop4h 08m

$307

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Wed 3/19

12:15 pm-3:46 pm

3 stops27h 31m

Milwaukee-Mitchell

Wed 3/26

1:24 pm-5:52 pm

2 stops28h 28m

$399

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Thu 3/6

6:30 am-11:59 am

1 stop5h 29m

Milwaukee-Mitchell

Mon 3/10

11:25 am-3:31 pm

1 stop4h 06m

$460

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Thu 3/20

11:55 am-2:39 pm

1 stop2h 44m

$80

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Thu 4/17

6:00 am-10:30 am

1 stop4h 30m

$89

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Sat 3/8

5:33 pm-9:08 pm

1 stop3h 35m

$119

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Thu 3/20

9:40 am-10:55 am

Nonstop1h 15m

$128

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Thu 2/27

5:20 pm-1:14 pm

1 stop19h 54m

$132

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 12 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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 FlightHub the most. FlightHub 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.

Travel insights for flights from St. Louis to Milwaukee

Get recent, data-driven insights about flights from St. Louis to Milwaukee including ideal travel times, pricing trends, and more.

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 February 20, 2025.

It’s typically best to fly out from St. Louis to Milwaukee in the afternoon. Doing so could potentially save you 21% 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 February 20, 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
8.1
Very good
4,411 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,220 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,766 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Spirit Airlines
6.3
Okay
8,013 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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 Frontier is currently your cheapest option to Milwaukee, with prices starting at $149. Additional round-trip tickets that might be worth considering are offered by Southwest and Delta, with the lowest prices starting at $287 and $307, respectively. These flights start at 56% lower than the current average price 3 months from now.

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

    $80 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 Delta and United Airlines, with prices starting from $89 and $119, 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 $340, our data indicates the cheapest price to be $126. The most popular route (Lambert-St Louis - Milwaukee-Mitchell), is priced around $183.

  • 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$156Average$277FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$157Average$278FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$174Average$382FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$254Average$329FlexibilityNo cancel feeOn-time63%
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