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Wisconsin

$46+ Cheap flights from St. Louis (STL) to Wisconsin

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MKE
Aug 18 — Aug 251
Mon 8/18
Mon 8/25
1 adult, Economy
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Cheap flight deals from St. Louis to Wisconsin

Keep the following information in mind while searching for St. Louis to Wisconsin flight deals. Data was last updated August 13, 2025.

Round-trip from

$91
(American Airlines)

One-way from

$46
(American Airlines)

Popular in

February

Cheapest in

April

Average price

$431
From Lambert-St Louis to Wisconsin
Search Deals
One-way flight from Lambert-St Louis to Wisconsin
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($65 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from St. Louis to Wisconsin

Cheapest flights from St. Louis to Wisconsin
Explore the most affordable flight options available from St. Louis to Wisconsin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 13, 2025.

This American Airlines deal was found by Cheapflights users on 8/11. 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.
Sat 9/136:10 amSTL - ORD
Nonstop1h 20mAmerican Airlines
Mon 9/1510:34 pmORD - STL
Nonstop1h 14mAmerican Airlines
Deal found 8/11$91
This American Airlines deal was found by Cheapflights users on 8/11. 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.
Thu 9/47:23 amSTL - ORD
Nonstop1h 22mAmerican Airlines
Mon 9/86:59 pmORD - STL
Nonstop1h 26mAmerican Airlines
Deal found 8/11$92
This Southwest deal was found by Cheapflights users on 8/12. 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 9/45:10 amSTL - ORD
1 stop5h 35mSouthwest
Sat 9/62:55 pmORD - STL
1 stop5h 35mSouthwest
Deal found 8/12$97
This Southwest deal was found by Cheapflights users on 8/12. 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.
Sat 9/131:45 pmSTL - ORD
2 stops8h 15mSouthwest
Tue 9/231:50 pmORD - STL
1 stop8h 05mSouthwest
Deal found 8/12$102
This Southwest deal was found by Cheapflights users on 8/12. 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.
Tue 9/96:25 amSTL - ORD
1 stop6h 20mSouthwest
Thu 9/117:30 amORD - STL
2 stops11h 05mSouthwest
Deal found 8/12$108
This American Airlines deal was found by Cheapflights users on 8/10. 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.
Sat 9/136:10 amSTL - ORD
Nonstop1h 20mAmerican Airlines
Tue 9/1612:01 pmORD - STL
Nonstop1h 22mAmerican Airlines
Deal found 8/10$117
This United Airlines deal was found by Cheapflights users on 8/12. 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.
Tue 9/167:04 pmSTL - ORD
Nonstop1h 32mUnited Airlines
Sat 9/202:20 pmORD - STL
Nonstop1h 24mUnited Airlines
Deal found 8/12$135
This United Airlines deal was found by Cheapflights users on 8/12. 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.
Mon 9/87:04 pmSTL - ORD
Nonstop1h 32mUnited Airlines
Tue 9/912:55 pmORD - STL
Nonstop1h 24mUnited Airlines
Deal found 8/12$137
This United Airlines deal was found by Cheapflights users on 8/13. 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 9/117:04 pmSTL - ORD
Nonstop1h 32mUnited Airlines
Sun 9/1412:55 pmORD - STL
Nonstop1h 24mUnited Airlines
Deal found 8/13$144
This Trip.com deal was found by Cheapflights users on 8/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/41:00 pmSTL - ORD
1 stop3h 19mMultiple Airlines
Mon 9/82:20 pmORD - STL
Nonstop1h 24mMultiple Airlines
Deal found 8/11$147
This Southwest deal was found by Cheapflights users on 8/11. 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.
Tue 10/710:15 amSTL - MKE
Nonstop1h 15mSouthwest
Wed 10/85:45 amMKE - STL
Nonstop1h 20mSouthwest
Deal found 8/11$155
This Delta deal was found by Cheapflights users on 8/11. 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.
Tue 9/1612:15 pmSTL - MSP
Nonstop1h 35mDelta
Wed 9/1710:00 amMSP - STL
Nonstop1h 30mDelta
Deal found 8/11$155

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Wisconsin 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 August 13, 2025.
Use the filters below to find and compare flights from St. Louis to Wisconsin that are best for you.

Fly from

St. Louis

Fly to

Wisconsin

Route

Depart

Return

Price

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Sat 11/8

6:00 am-7:30 am

Nonstop1h 30m

Chicago O'Hare Intl

Tue 11/11

3:23 pm-4:47 pm

Nonstop1h 24m

$91

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Mon 11/3

7:58 pm-9:29 pm

Nonstop1h 31m

Chicago O'Hare Intl

Sat 11/15

6:45 am-8:10 am

Nonstop1h 25m

$91

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Wed 9/17

7:23 am-8:45 am

Nonstop1h 22m

Chicago O'Hare Intl

Sat 9/20

7:10 pm-8:32 pm

Nonstop1h 22m

$91

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Sat 9/13

7:23 am-8:45 am

Nonstop1h 22m

Chicago O'Hare Intl

Tue 9/23

8:31 pm-9:53 pm

Nonstop1h 22m

$91

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Mon 9/22

7:23 am-8:45 am

Nonstop1h 22m

Chicago O'Hare Intl

Thu 9/25

8:00 am-9:26 am

Nonstop1h 26m

$91

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Tue 9/16

7:23 am-8:45 am

Nonstop1h 22m

Chicago O'Hare Intl

Thu 9/18

10:34 pm-11:48 pm

Nonstop1h 14m

$91

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Thu 9/4

9:27 am-10:45 am

Nonstop1h 18m

Chicago O'Hare Intl

Sat 9/6

2:29 pm-3:52 pm

Nonstop1h 23m

$91

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Tue 9/9

6:10 am-7:30 am

Nonstop1h 20m

Chicago O'Hare Intl

Thu 9/11

10:34 pm-11:48 pm

Nonstop1h 14m

$91

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Tue 9/9

7:23 am-8:45 am

Nonstop1h 22m

Chicago O'Hare Intl

Tue 9/16

7:10 pm-8:32 pm

Nonstop1h 22m

$91

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Sat 9/13

7:23 am-8:45 am

Nonstop1h 22m

Chicago O'Hare Intl

Tue 9/16

7:10 pm-8:32 pm

Nonstop1h 22m

$91

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Showing 1-10 of 60 results
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2
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6

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

Have a flexible travel schedule? Discover the best time to fly to Wisconsin 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 Wisconsin

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

Currently, February is the cheapest month in which you can book a flight from St. Louis to Wisconsin (average of $280). Flying from St. Louis to Wisconsin 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 WI?

Find hourly flight availability from St. Louis to Wisconsin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 13, 2025.

When flying from St. Louis to Wisconsin, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Wisconsin

Get insights into the airlines that provide service to Wisconsin. 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 Wisconsin. Reviews last updated August 13, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from St. Louis to Wisconsin by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,246 reviews

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,979 reviews
Southwest
8.0
Very good
4,246 reviews

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,920 reviews
Southwest
8.0
Very good
4,246 reviews

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

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

  • What airport do you fly from for flights from St. Louis to Wisconsin?

    Lambert-St Louis (STL) is the airport you will fly out of if you book a flight from St. Louis to Wisconsin. It is only a 12.7 mi journey to Lambert-St Louis (STL) from St. Louis’s city center.

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

    The Lambert-St Louis to Wisconsin flight path was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $46. However, be on the lookout for offers from Sun Country Air and Southwest, as they are both options that can get you from St. Louis to Wisconsin for a low price.

  • What are the most popular routes from St. Louis to Wisconsin?

    The most popular flight routes from St. Louis to Wisconsin are Lambert-St Louis - Chicago O'Hare Intl, Lambert-St Louis - Minneapolis St Paul and Lambert-St Louis - Milwaukee-Mitchell.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Wisconsin 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 Wisconsin?

    Currently, February is the cheapest month in which you can book a flight from St. Louis to Wisconsin (average of $280). Flying from St. Louis to Wisconsin 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

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Alternative routes for St. Louis to Wisconsin

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from St. Louis to Wisconsin

Discover the top 4 airlines that operate flights from St. Louis to Wisconsin. 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 August 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$158Average$427FlexibilityNo cancel feeOn-time71%
DeltaCheapest$190Average$300FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$228Average$410FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$253Average$331FlexibilityNo cancel feeOn-time63%

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