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

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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — STL
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheap flight deals from Wisconsin to St. Louis

Keep the following information in mind while searching for Wisconsin to St. Louis flight deals. Data was last updated July 30, 2025.

Round-trip from

$91
(United Airlines)

One-way from

$46
(American Airlines)

Popular in

March

Cheapest in

January

Average price

$351

Good round-trip deal

$242 or less

Good one-way deal

$175 or less
From Wisconsin to Lambert-St Louis
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One-way flight from Wisconsin to Lambert-St Louis
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Highest demand for flights based on searches. 22% potential increase in price ($98 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Wisconsin to Lambert-St Louis.
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Price to beat on a one-way flight from Wisconsin to Lambert-St Louis.
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Find flight deals from Wisconsin to St. Louis

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

This American Airlines deal was found by Cheapflights users on 7/28. 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 9/207:10 pmORD - STL
Nonstop1h 22mAmerican Airlines
Sat 10/45:25 pmSTL - ORD
Nonstop1h 33mAmerican Airlines
Deal found 7/28$90
This Cheapflightsfares deal was found by Cheapflights users on 7/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2210:15 amMSP - STL
Nonstop1h 29mSun Country Air
Sun 8/245:10 pmSTL - MSP
Nonstop1h 38mSun Country Air
Deal found 7/29$116
This Southwest deal was found by Cheapflights users on 7/28. 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 8/273:10 pmORD - STL
1 stop4h 55mSouthwest
Wed 9/36:25 amSTL - ORD
1 stop6h 20mSouthwest
Deal found 7/28$141
This Gotogate deal was found by Cheapflights users on 7/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1510:00 amMSP - STL
Nonstop1h 30mMultiple Airlines
Sat 8/167:29 pmSTL - MSP
1 stop5h 08mMultiple Airlines
Deal found 7/28$153
This American Airlines deal was found by Cheapflights users on 7/28. 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.
Tue 9/94:37 pmMKE - STL
1 stop5h 16mAmerican Airlines
Wed 9/106:10 amSTL - MKE
1 stop3h 54mAmerican Airlines
Deal found 7/28$159
This Jettzy deal was found by Cheapflights users on 7/28. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/128:15 amORD - STL
1 stop3h 45mSouthern / Mokulele
Fri 9/199:20 amSTL - ORD
1 stop6h 59mSouthern / Mokulele
Deal found 7/28$167
This Southwest deal was found by Cheapflights users on 7/28. 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 9/94:30 pmMKE - STL
Nonstop1h 20mSouthwest
Wed 9/108:50 pmSTL - MKE
Nonstop1h 15mSouthwest
Deal found 7/28$177
This Delta deal was found by Cheapflights users on 7/29. 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.
Tue 8/199:47 amORD - STL
1 stop4h 54mDelta
Thu 8/215:11 pmSTL - ORD
1 stop6h 45mDelta
Deal found 7/29$177
This Frontier deal was found by Cheapflights users on 7/28. 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.
Tue 8/1211:28 amORD - STL
1 stop12h 19mFrontier
Sat 8/162:52 pmSTL - ORD
1 stop8h 37mFrontier
Deal found 7/28$178
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Sat 8/232:20 pmORD - STL
Nonstop1h 24mUnited Airlines
Sun 8/249:17 amSTL - ORD
Nonstop1h 30mUnited Airlines
Deal found 7/29$181
This FlightHub deal was found by Cheapflights users on 7/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/268:00 amMSP - STL
1 stop25h 11mFrontier
Tue 9/27:54 pmSTL - MSP
1 stop25h 00mFrontier
Deal found 7/30$185
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Wed 9/108:30 amMKE - STL
1 stop5h 49mUnited Airlines
Mon 9/157:04 pmSTL - MKE
1 stop3h 37mUnited Airlines
Deal found 7/29$186

Cheapflights Fare Finder

 
Customize your flight search to find flights from Wisconsin to St. Louis 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 July 30, 2025.
Use the filters below to find and compare flights from Wisconsin to St. Louis that are best for you.

Fly from

Wisconsin

Fly to

St. Louis

Route

Depart

Return

Price

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Sat 9/20

7:10 pm-8:32 pm

Nonstop1h 22m

Lambert-St Louis

Sat 10/4

5:25 pm-6:58 pm

Nonstop1h 33m

$90

MinneapolisSt. Louis

MSP - STL

MSPSTL

Minneapolis St Paul

Fri 8/22

10:15 am-11:44 am

Nonstop1h 29m

Lambert-St Louis

Sun 8/24

5:10 pm-6:48 pm

Nonstop1h 38m

$116

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Wed 8/27

3:10 pm-8:05 pm

1 stop4h 55m

Lambert-St Louis

Wed 9/3

6:25 am-12:45 pm

1 stop6h 20m

$141

MinneapolisSt. Louis

MSP - STL

MSPSTL

Minneapolis St Paul

Fri 8/22

10:15 am-11:44 am

Nonstop1h 29m

Lambert-St Louis

Mon 8/25

2:30 pm-9:28 pm

1 stop6h 58m

$157

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Tue 9/9

4:37 pm-9:53 pm

1 stop5h 16m

Lambert-St Louis

Wed 9/10

6:10 am-10:04 am

1 stop3h 54m

$159

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Fri 9/12

8:15 am-12:00 pm

1 stop3h 45m

Lambert-St Louis

Fri 9/19

9:20 am-4:19 pm

1 stop6h 59m

$167

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Tue 8/19

9:47 am-2:41 pm

1 stop4h 54m

Lambert-St Louis

Thu 8/21

5:11 pm-11:56 pm

1 stop6h 45m

$177

MilwaukeeSt. Louis

MKE - STL

MKESTL

Milwaukee-Mitchell

Tue 9/9

4:30 pm-5:50 pm

Nonstop1h 20m

Lambert-St Louis

Wed 9/10

8:50 pm-10:05 pm

Nonstop1h 15m

$177

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Tue 8/12

11:28 am-11:47 pm

1 stop12h 19m

Lambert-St Louis

Sat 8/16

2:52 pm-11:29 pm

1 stop8h 37m

$178

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Sat 8/23

2:20 pm-3:44 pm

Nonstop1h 24m

Lambert-St Louis

Sun 8/24

9:17 am-10:47 am

Nonstop1h 30m

$181

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 60 results
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Best time to book a flight from Wisconsin to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Wisconsin 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 Wisconsin to St. Louis

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

Currently, August is the cheapest month in which you can book a flight from Wisconsin to St. Louis (average of $311). Flying from Wisconsin to St. Louis in March is currently the most expensive (average of $356). 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 WI to STL?

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Wisconsin to St. Louis as you normally would.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated July 30, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Wisconsin to St. Louis to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,980 reviews
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,896 reviews
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Sun Country Air
6.9
Okay
334 reviews
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Related info for your journey

Find useful and relevant information for your journey from Wisconsin to St. Louis. 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 into for flights to St. Louis from Wisconsin?

    Most people fly into Lambert-St Louis (STL) if they book a flight to St. Louis from Wisconsin. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

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

    The Wisconsin to Lambert-St Louis flight path was viewed by 26 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 Wisconsin to St. Louis one-way?

    $46 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 Sun Country Air and Southwest, with prices starting from $58 and $61, respectively.

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

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

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

    Looking at all options, your cheapest flight can be booked for $98. While the most popular route (Chicago O'Hare Intl - Lambert-St Louis) can be booked for $91 on average our data indicates $266 when flying from Wisconsin to St. Louis.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Wisconsin to St. Louis (average of $311). Flying from Wisconsin to St. Louis in March is currently the most expensive (average of $356). 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
O'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Chesterfield
Festus
Farmington

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Alternative routes for Wisconsin to St. Louis

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Top 4 airlines flying from Wisconsin to St. Louis

Discover the top 4 airlines that operate flights from Wisconsin to St. Louis. 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$156Average$381FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$158Average$365FlexibilityNo cancel feeOn-time71%
DeltaCheapest$198Average$335FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$226Average$328FlexibilityNo cancel feeOn-time63%

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