What is the cheapest airline that flies from Lambert-St Louis to Wisconsin?

Frontier, United Airlines, and American Airlines are the most popular carriers operating from Lambert-St Louis to Wisconsin

How many flights depart from St. Louis to Wisconsin on average per day?

The number of flights available between St. Louis and Wisconsin is 76 per day as of September 2025. The most frequent departure time is 8:00PM, with 50% of daily flights leaving in the evening.

What airlines fly to Wisconsin?

American Airlines, United Airlines and Southwest are the top three most popular airlines that fly to Wisconsin from St. Louis according to our data. American Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Wisconsin. Keep in mind that there are 4 different airlines that fly to Wisconsin on a routine basis, so you have a few additional options to choose from.

How many flights depart from St. Louis to Wisconsin on average per week?

As of September 2025, 537 flights take off from St. Louis and land in Wisconsin each week. The most common flight departure day for this route is Thu, with 17% of weekly flights taking off on this day.

When did momondo last update prices for flights from Lambert-St Louis Airport to Wisconsin?

Prices for flights from Lambert-St Louis Airport to Wisconsin refresh daily.

How many operators does momondo search for flights from Lambert-St Louis Airport to Wisconsin?

As of September 2025, there are 7 operators available to choose from for flights from Lambert-St Louis Airport to Wisconsin.

How old do you have to be to fly from Lambert-St Louis Airport to Wisconsin?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Wisconsin.

What documentation or ID do you need to fly to Wisconsin?

The travel and health documents you'll need for your trip to Wisconsin may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Wisconsin. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$47 Cheap Flights from St. Louis to Wisconsin in 2025/26

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Find the cheapest flights from St. Louis to Wisconsin

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

5:00 am - 6:30 amSTL-ORD

1h 30mnonstop

1:03 pm - 2:27 pmORD-STL

1h 24mnonstop

$97United Airlines

Find Deal

Wed, Oct 15 - Wed, Oct 15

7:16 am - 8:43 amSTL-ORD

1h 27mnonstop

10:34 pm - 11:54 pmORD-STL

1h 20mnonstop

$98American Airlines

Find Deal

Thu, Oct 23 - Mon, Oct 27

7:16 am - 8:43 amSTL-ORD

1h 27mnonstop

10:34 pm - 11:54 pmORD-STL

1h 20mnonstop

$99American Airlines

Find Deal

Thu, Oct 23 - Mon, Oct 27

6:55 am - 12:45 pmSTL-ORD

5h 50m1 stop

7:30 am - 2:45 pmORD-STL

7h 15m1 stop

$117Southwest

Find Deal

Wed, Oct 15 - Wed, Oct 22

1:30 pm - 11:05 pmSTL-ORD

9h 35m1 stop

1:30 pm - 8:45 pmORD-STL

7h 15m1 stop

$122Southwest

Find Deal

Tue, Oct 14 - Tue, Oct 21

6:22 pm - 12:59 amSTL-ORD

6h 37m1 stop

5:01 am - 10:12 amORD-STL

5h 11m1 stop

$144Frontier

Find Deal

Thu, Nov 13 - Sun, Nov 16

1:41 pm - 7:34 amSTL-ORD

17h 53m1 stop

10:51 am - 9:07 amORD-STL

22h 16m1 stop

$145Frontier

Find Deal

Thu, Oct 23 - Mon, Oct 27

1:00 pm - 2:30 pmSTL-ORD

1h 30mnonstop

1:00 pm - 2:30 pmORD-STL

1h 30mnonstop

$157United Airlines

Find Deal

Wed, Dec 17 - Sat, Jan 10

6:40 am - 12:25 pmSTL-MKE

5h 45m1 stop

9:39 am - 1:22 pmMKE-STL

3h 43m1 stop

$177Delta

Find Deal

Mon, Oct 13 - Tue, Oct 21

12:14 pm - 4:50 pmSTL-ORD

4h 36m1 stop

8:55 am - 1:51 pmORD-STL

4h 56m1 stop

$177Delta

Find Deal

Sat, Nov 8 - Tue, Nov 11

Southern / Mokulele flights from St. Louis to Wisconsin

Our best Southern / Mokulele deals on St. Louis to Wisconsin flight tickets

Southern / Mokulele

Oct 9

STL9:20 amLambert-St Louis

6h 59m

1 stop

ORD4:19 pmChicago O'Hare Intl

Oct 12

ORD8:15 amChicago O'Hare Intl

3h 45m

1 stop

STL12:00 pmLambert-St Louis

$166

Find similar

Southern / Mokulele

Oct 10

STL9:20 amLambert-St Louis

6h 59m

1 stop

ORD4:19 pmChicago O'Hare Intl

Oct 14

ORD8:15 amChicago O'Hare Intl

3h 45m

1 stop

STL12:00 pmLambert-St Louis

$169

Find similar

Southern / Mokulele

Oct 9

STL9:20 amLambert-St Louis

6h 59m

1 stop

ORD4:19 pmChicago O'Hare Intl

Oct 14

ORD1:10 pmChicago O'Hare Intl

22h 50m

1 stop

STL12:00 pmLambert-St Louis

$185

Find similar

Southwest flights from St. Louis to Wisconsin

Our best Southwest deals on St. Louis to Wisconsin flight tickets

Southwest

Oct 15

STL6:55 amLambert-St Louis

5h 50m

1 stop

ORD12:45 pmChicago O'Hare Intl

Oct 22

ORD7:30 amChicago O'Hare Intl

7h 15m

1 stop

STL2:45 pmLambert-St Louis

$117

Find similar

Southwest

Oct 14

STL1:30 pmLambert-St Louis

9h 35m

1 stop

ORD11:05 pmChicago O'Hare Intl

Oct 21

ORD1:30 pmChicago O'Hare Intl

7h 15m

1 stop

STL8:45 pmLambert-St Louis

$122

Find similar

Southwest

Oct 18

STL10:25 amLambert-St Louis

6h 00m

1 stop

ORD4:25 pmChicago O'Hare Intl

Oct 25

ORD7:30 amChicago O'Hare Intl

5h 25m

1 stop

STL12:55 pmLambert-St Louis

$184

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Wed 10/15

5:00 am-6:30 am

Nonstop1h 30m

Chicago O'Hare Intl

Wed 10/15

1:03 pm-2:27 pm

Nonstop1h 24m

$97

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Thu 10/23

7:16 am-8:43 am

Nonstop1h 27m

Chicago O'Hare Intl

Mon 10/27

10:34 pm-11:54 pm

Nonstop1h 20m

$98

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Thu 10/23

7:16 am-8:43 am

Nonstop1h 27m

Chicago O'Hare Intl

Mon 10/27

10:34 pm-11:54 pm

Nonstop1h 20m

$99

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Wed 10/15

6:55 am-12:45 pm

1 stop5h 50m

Chicago O'Hare Intl

Wed 10/22

7:30 am-2:45 pm

1 stop7h 15m

$117

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Tue 10/14

1:30 pm-11:05 pm

1 stop9h 35m

Chicago O'Hare Intl

Tue 10/21

1:30 pm-8:45 pm

1 stop7h 15m

$122

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Thu 11/13

6:22 pm-12:59 am

1 stop6h 37m

Chicago O'Hare Intl

Sun 11/16

5:01 am-10:12 am

1 stop5h 11m

$144

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Thu 10/23

1:41 pm-7:34 am

1 stop17h 53m

Chicago O'Hare Intl

Mon 10/27

10:51 am-9:07 am

1 stop22h 16m

$145

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Wed 12/17

1:00 pm-2:30 pm

Nonstop1h 30m

Chicago O'Hare Intl

Sat 1/10

1:00 pm-2:30 pm

Nonstop1h 30m

$157

St. LouisMilwaukee

STL - MKE

STLMKE

Lambert-St Louis

Mon 10/13

6:40 am-12:25 pm

1 stop5h 45m

Milwaukee-Mitchell

Tue 10/21

9:39 am-1:22 pm

1 stop3h 43m

$177

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Sat 11/8

12:14 pm-4:50 pm

1 stop4h 36m

Chicago O'Hare Intl

Tue 11/11

8:55 am-1:51 pm

1 stop4h 56m

$177

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from St. Louis to Wisconsin

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Wisconsin?

If you aren’t able to travel during the month of April, then book flights to Wisconsin from St. Louis during November instead. Flights to Wisconsin in November, while not as cheap as those in April, still average around $256.

What is the cheapest day to depart on your flight to Wisconsin?

The cheapest day to depart from St. Louis to Wisconsin is on a Tuesday. Travelers who choose to depart for Wisconsin on a Tuesday will often find tickets for as low as $273. The most expensive day to fly to Wisconsin is Saturday, with ticket prices averaging around $416.

What is the cheapest time of day to depart on your flight to Wisconsin?

Our most recent data shows that the best time of day to fly to Wisconsin is in the evening. Flights from St. Louis to Wisconsin during this time can be as low as $331. Flights at noon are often more expensive with an average ticket price of $489.

What is the cheapest Lambert-St Louis to Wisconsin flight route?

Fly from Lambert-St Louis to Milwaukee-Mitchell for the best Lambert-St Louis - Wisconsin flight prices

What cabin class options are available on Lambert-St Louis to Wisconsin flights?

There is only 1 cabin class available to choose from on Lambert-St Louis to Wisconsin flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on St. Louis to Wisconsin flights?

No. A direct flight is the cheapest option for a flight between St. Louis to Wisconsin.

Cheap St. Louis to Wisconsin flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Wisconsin

Best Price Found	$263
Fastest flight time	1h 10m
Direct flights	Every day
Airports in Wisconsin	2 airports

The best flight deal from St. Louis to Wisconsin found on momondo in the last 72 hours is $263

The fastest flight from St. Louis to Wisconsin takes 1h 10m

Direct flights go from St. Louis to Wisconsin every day.

There are 2 airports near Wisconsin: Chicago O'Hare Intl (ORD), Milwaukee-Mitchell (MKE)

Search flight deals

When did momondo last update prices for flights from Lambert-St Louis Airport to Wisconsin?
Prices for flights from Lambert-St Louis Airport to Wisconsin refresh daily.
How many operators does momondo search for flights from Lambert-St Louis Airport to Wisconsin?
As of September 2025, there are 7 operators available to choose from for flights from Lambert-St Louis Airport to Wisconsin.
How old do you have to be to fly from Lambert-St Louis Airport to Wisconsin?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Wisconsin.
What documentation or ID do you need to fly to Wisconsin?
The travel and health documents you'll need for your trip to Wisconsin may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Wisconsin. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from St. Louis to Wisconsin?
Based on momondo bookings for flights between St. Louis and Wisconsin, the leading plane model is Boeing 737-700 Passenger/BBJ1 (winglets), making up 22.58% of the total bookings. Other popular models include Boeing 737-800 Passenger/BBJ2 (winglets) with 19.35%, Boeing 737 MAX 8 with 9.68%, and Embraer 175 (Enhanced Winglets) with 9.68%.

Best airlines flying from St. Louis to Wisconsin

Compare and see reviews for airlines that fly from St. Louis to Wisconsin with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $158	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $192	Free Cancellation	Rating 7.4 8,926 reviews	Search United Airlines flights
Southwest	PriceFrom $199	Free Cancellation	Rating 8.0 4,242 reviews	Search Southwest flights
Delta	PriceFrom $200	Free Cancellation	Rating 7.9 7,964 reviews	Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Wisconsin?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from St. Louis to Wisconsin for you.

Can I find flights from St. Louis to Wisconsin with flexible booking policies on momondo?

Flights from St. Louis to Wisconsin with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from St. Louis to Wisconsin?

Once all potential St. Louis to Wisconsin flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from St. Louis to Wisconsin right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Wisconsin from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Wisconsin trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Find better results for your trip to Wisconsin

Popular cities in Wisconsin

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Cheap flights from St. Louis to Wisconsin from $47

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Wisconsin departing on 10/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from St. Louis to Wisconsin

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Southern / Mokulele flights from St. Louis to Wisconsin

Our best Southern / Mokulele deals on St. Louis to Wisconsin flight tickets

Southwest flights from St. Louis to Wisconsin

Our best Southwest deals on St. Louis to Wisconsin flight tickets

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Use the filters below to find and compare flights from St. Louis to Wisconsin that are best for you.

See travel insights to Wisconsin from

How to get the cheapest flight ticket from St. Louis to Wisconsin

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Wisconsin?

If you aren’t able to travel during the month of April, then book flights to Wisconsin from St. Louis during November instead. Flights to Wisconsin in November, while not as cheap as those in April, still average around $256.

What is the cheapest day to depart on your flight to Wisconsin?

The cheapest day to depart from St. Louis to Wisconsin is on a Tuesday. Travelers who choose to depart for Wisconsin on a Tuesday will often find tickets for as low as $273. The most expensive day to fly to Wisconsin is Saturday, with ticket prices averaging around $416.

What is the cheapest time of day to depart on your flight to Wisconsin?

Our most recent data shows that the best time of day to fly to Wisconsin is in the evening. Flights from St. Louis to Wisconsin during this time can be as low as $331. Flights at noon are often more expensive with an average ticket price of $489.

What is the cheapest Lambert-St Louis to Wisconsin flight route?

Fly from Lambert-St Louis to Milwaukee-Mitchell for the best Lambert-St Louis - Wisconsin flight prices

What cabin class options are available on Lambert-St Louis to Wisconsin flights?

There is only 1 cabin class available to choose from on Lambert-St Louis to Wisconsin flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on St. Louis to Wisconsin flights?

No. A direct flight is the cheapest option for a flight between St. Louis to Wisconsin.

What is the cheapest airline that flies from Lambert-St Louis to Wisconsin?

Frontier, United Airlines, and American Airlines are the most popular carriers operating from Lambert-St Louis to Wisconsin

What airlines fly to Wisconsin?

How many flights depart from St. Louis to Wisconsin on average per day?

The number of flights available between St. Louis and Wisconsin is 76 per day as of September 2025. The most frequent departure time is 8:00PM, with 50% of daily flights leaving in the evening.

How many flights depart from St. Louis to Wisconsin on average per week?

As of September 2025, 537 flights take off from St. Louis and land in Wisconsin each week. The most common flight departure day for this route is Thu, with 17% of weekly flights taking off on this day.

Cheap St. Louis to Wisconsin flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Wisconsin

Best Price Found

Fastest flight time

Direct flights

Airports in Wisconsin

When did momondo last update prices for flights from Lambert-St Louis Airport to Wisconsin?

How many operators does momondo search for flights from Lambert-St Louis Airport to Wisconsin?

How old do you have to be to fly from Lambert-St Louis Airport to Wisconsin?

What documentation or ID do you need to fly to Wisconsin?

What is the most popular plane model from St. Louis to Wisconsin?

Best airlines flying from St. Louis to Wisconsin

Compare and see reviews for airlines that fly from St. Louis to Wisconsin with momondo

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Wisconsin?

Can I find flights from St. Louis to Wisconsin with flexible booking policies on momondo?

How can momondo help me find flights from St. Louis to Wisconsin?

I’m not ready to book a flight from St. Louis to Wisconsin right now. Can momondo alert me if prices change?

An easier way to manage your Wisconsin trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Wisconsin

Popular cities in Wisconsin

Popular flights according to clicks in the last 7 days on momondo