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Wisconsin

$43+ 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 3/21. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MKE
Mar 20 — Mar 271
Fri 3/20
Fri 3/27
1 adult, Economy
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Cheap 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 February 18, 2026.

This Delta deal was found by Cheapflights users on 2/17. 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 3/246:29 am
STL
-
MSP
Nonstop1h 38m
Delta
Tue 3/319:50 pm
MSP
-
STL
Nonstop1h 35m
Delta
Deal found 2/17$117
This Southwest deal was found by Cheapflights users on 2/17. 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 3/108:25 am
STL
-
MSP
Nonstop1h 30m
Southwest
Tue 3/104:20 pm
MSP
-
STL
1 stop6h 20m
Southwest
Deal found 2/17$127
This Southwest deal was found by Cheapflights users on 2/16. 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.
Wed 3/118:25 am
STL
-
MSP
Nonstop1h 30m
Southwest
Mon 3/165:30 pm
MSP
-
STL
Nonstop1h 25m
Southwest
Deal found 2/16$144
This Southwest deal was found by Cheapflights users on 2/17. 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 3/262:15 pm
STL
-
MSP
1 stop3h 50m
Southwest
Tue 3/316:00 pm
MSP
-
STL
1 stop4h 20m
Southwest
Deal found 2/17$164
This Kiwi.com deal was found by Cheapflights users on 2/17. 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.
Mon 3/238:12 pm
STL
-
MSP
1 stop27h 45m
Frontier
Tue 3/316:21 pm
MSP
-
STL
1 stop15h 27m
Frontier
Deal found 2/17$166
This Delta deal was found by Cheapflights users on 2/15. 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 3/269:45 am
STL
-
MSP
Nonstop1h 38m
Delta
Mon 3/309:50 pm
MSP
-
STL
Nonstop1h 35m
Delta
Deal found 2/15$171
This Kiwi.com deal was found by Cheapflights users on 2/17. 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.
Wed 3/258:12 pm
STL
-
MSP
1 stop27h 45m
Frontier
Tue 3/316:21 pm
MSP
-
STL
1 stop15h 27m
Frontier
Deal found 2/17$175
This American Airlines deal was found by Cheapflights users on 2/15. 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 8/225:27 am
STL
-
ORD
1 stop5h 16m
American Airlines
Sun 8/2310:34 pm
ORD
-
STL
Nonstop1h 17m
American Airlines
Deal found 2/15$195
This United Airlines deal was found by Cheapflights users on 2/16. 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 4/168:15 pm
STL
-
MKE
1 stop3h 28m
United Airlines
Sun 4/195:10 am
MKE
-
STL
1 stop5h 35m
United Airlines
Deal found 2/16$197
This United Airlines deal was found by Cheapflights users on 2/15. 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.
Sat 6/136:00 am
STL
-
ORD
Nonstop1h 30m
United Airlines
Sun 6/147:45 pm
ORD
-
STL
Nonstop1h 31m
United Airlines
Deal found 2/15$201
This Frontier deal was found by Cheapflights users on 2/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/19:55 pm
STL
-
ORD
1 stop8h 52m
Frontier
Sun 5/35:01 am
ORD
-
STL
1 stop5h 29m
Frontier
Deal found 2/16$202
This American Airlines deal was found by Cheapflights users on 2/15. 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 5/165:51 am
STL
-
ORD
Nonstop1h 30m
American Airlines
Sun 5/177:15 am
ORD
-
STL
1 stop6h 07m
American Airlines
Deal found 2/15$204

Find 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 February 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$117
(Southwest)

One-way from

$43
(United Airlines)

Popular in

January

Cheapest in

April

Average price

$517

Good round-trip deal

$371 or less

Good one-way deal

$317 or less
Provider with most accurate pricing for Lambert-St Louis-Milwaukee-Mitchell flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Milwaukee-Mitchell flights.
Search Deals
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. 27% potential increase in price ($148 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Lambert-St Louis to Wisconsin.
Search Deals
Price to beat on a one-way flight from Lambert-St Louis to Wisconsin.
Search Deals

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 February 18, 2026.
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. LouisMinneapolis

STL - MSP

STLMSP

Lambert-St Louis

Tue 3/10

6:20 am-11:25 am

1 stop5h 05m

Minneapolis St Paul

Tue 3/10

2:20 pm-10:40 pm

2 stops8h 20m

$142

St. LouisMinneapolis

STL - MSP

STLMSP

Lambert-St Louis

Wed 3/11

8:25 am-9:55 am

Nonstop1h 30m

Minneapolis St Paul

Mon 3/16

5:30 pm-6:55 pm

Nonstop1h 25m

$144

St. LouisMinneapolis

STL - MSP

STLMSP

Lambert-St Louis

Mon 5/18

5:40 am-9:40 am

1 stop4h 00m

Minneapolis St Paul

Wed 5/20

4:30 pm-6:00 pm

Nonstop1h 30m

$144

St. LouisMinneapolis

STL - MSP

STLMSP

Lambert-St Louis

Thu 3/26

2:15 pm-6:05 pm

1 stop3h 50m

Minneapolis St Paul

Tue 3/31

4:30 pm-6:00 pm

Nonstop1h 30m

$154

St. LouisMinneapolis

STL - MSP

STLMSP

Lambert-St Louis

Wed 3/11

5:25 pm-7:03 pm

Nonstop1h 38m

Minneapolis St Paul

Mon 3/16

9:50 pm-11:25 pm

Nonstop1h 35m

$171

St. LouisMinneapolis

STL - MSP

STLMSP

Lambert-St Louis

Thu 3/26

6:29 am-8:07 am

Nonstop1h 38m

Minneapolis St Paul

Mon 3/30

9:50 pm-11:25 pm

Nonstop1h 35m

$171

St. LouisMinneapolis

STL - MSP

STLMSP

Lambert-St Louis

Mon 3/23

6:29 am-8:07 am

Nonstop1h 38m

Minneapolis St Paul

Sat 3/28

9:50 pm-11:25 pm

Nonstop1h 35m

$171

St. LouisMinneapolis

STL - MSP

STLMSP

Lambert-St Louis

Sat 3/28

12:28 pm-2:12 pm

Nonstop1h 44m

Minneapolis St Paul

Thu 4/2

3:30 pm-5:05 pm

Nonstop1h 35m

$171

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Sat 4/11

7:45 am-1:47 pm

1 stop6h 02m

Milwaukee-Mitchell

Sun 4/12

5:10 am-8:25 am

1 stop3h 15m

$197

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Fri 5/22

6:00 am-11:08 am

1 stop5h 08m

Milwaukee-Mitchell

Wed 5/27

5:29 pm-9:16 pm

1 stop3h 47m

$197

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/14

Showing 1-10 of 60 results
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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, September is the cheapest month in which you can book a flight from St. Louis to Wisconsin (average of $166). Flying from St. Louis to Wisconsin in July is currently the most expensive (average of $292). 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 February 18, 2026.

When flying from St. Louis to Wisconsin, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 20% versus a flight at noon.

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 February 18, 2026.
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
4,294 reviews

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,294 reviews
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,207 reviews
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,312 reviews
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,304 reviews
Southwest
8.0
Very good
4,294 reviews

Entertainment

7.5

Overall

8.0

Boarding

8.1

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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.

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

    Southwest, United Airlines, and Frontier can get you from St. Louis to Wisconsin in just under 1h 30m. Your travel time can differ by up to 7h 22m. The distance between St. Louis and Wisconsin is about 448 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $93. However, be on the lookout for offers from American Airlines 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.

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

    The cheapest flight price from St. Louis to Wisconsin is $327. On average you can expect to pay $593. The most popular route, (Lambert-St Louis - Chicago O'Hare Intl), can usually be booked for $97.

  • 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, September is the cheapest month in which you can book a flight from St. Louis to Wisconsin (average of $166). Flying from St. Louis to Wisconsin in July is currently the most expensive (average of $292). 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 February 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$158Average$381FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$159Average$382FlexibilityNo cancel feeOn-time69%
DeltaCheapest$200Average$352FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$236Average$390FlexibilityNo cancel feeOn-time63%

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