Are direct flights from Milwaukee to St. Louis always the best option?

Direct flights are often the most convenient option, saving time and avoiding layovers. However, they are not always the cheapest. Flights with one or more stops can sometimes be more affordable, especially if you are willing to spend extra time traveling. Consider your budget and schedule when making this choice.

Can flexible travel dates help on Milwaukee to St. Louis flights?

Yes, being flexible with your travel dates can significantly impact flight prices. Flying on weekdays, during the middle of the week, or outside of major holidays and peak travel seasons often results in lower fares. Adjusting your departure or return by a day or two may reveal more economical options.

What extra costs should I check before booking Milwaukee to St. Louis flights?

Before booking, always check for potential extra costs such as baggage fees, seat selection charges, and in-flight services. Some airlines may also charge for printing boarding passes at the airport. Understanding these additional fees can help you accurately compare the total cost of your flight.

Flights From Milwaukee

To St. Louis

Cheap Flights from Milwaukee to St. Louis

Browse current best options from Milwaukee. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

Milwaukee

RatePunk searches hundreds of travel sites at once for deals on flights to St. Louis

Prices updated 6 days ago

483 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Oct 27, 2026.)

Today’s best flight deals from Milwaukee to St. Louis

Explore current cheapest deals departing from Milwaukee to St. Louis

2026-11-25 – 2026-12-16
MKE - St. Louis
34% AI deal score
$233
$382
Round trip
2026-12-07 – 2026-12-16
MKE - St. Louis
35% AI deal score
$276
$383
Round trip
2026-11-25 – 2026-12-14
MKE - St. Louis
35% AI deal score
$234
$389
Round trip
2026-12-07 – 2026-12-14
MKE - St. Louis
36% AI deal score
$290
$391
Round trip
2026-11-24 – 2026-12-16
MKE - St. Louis
34% AI deal score
$233
$396
Round trip
2027-02-23 – 2027-03-01
MKE - St. Louis
36% AI deal score
$251
$400
Round trip
2026-11-25 – 2026-12-23
MKE - St. Louis
34% AI deal score
$233
$402
Round trip
2026-11-23 – 2026-12-16
MKE - St. Louis
34% AI deal score
$233
$433
Round trip
2027-02-04 – 2027-03-01
MKE - St. Louis
35% AI deal score
$233
$437
Round trip
2027-02-04 – 2027-02-24
MKE - St. Louis
35% AI deal score
$233
$450
Round trip

Milwaukee to St. Louis: Overview

Insights for flights from Milwaukee to St. Louis

Most itineraries from Milwaukee to St. Louis connect at least once, with only 0.6% of recent fares being non-stop. For connecting flights, the typical number of stopovers is 2. This means that while direct flights from Milwaukee to St. Louis are rare, you'll most often find yourself with at least two connections on this route.

A typical journey from Milwaukee to St. Louis takes about 8h 57m, including connections. This duration reflects the overall travel time for most itineraries, considering the prevalence of connecting flights on this route.

For travelers looking for cheap flights from Milwaukee to St. Louis, fares typically range from $317–$496, with a median of $357. Right now, current fares are above the typical level. Only 5% of recent fares were classified as a good price, indicating that deals are infrequent — a price alert helps.

When is the cheapest time to fly from Milwaukee to St. Louis? The most affordable months to fly are February, with a median fare of $291, followed by August at $317, and September at $327. Planning your trip during these months could lead to more budget-friendly options.

The distance between Milwaukee and St. Louis is 511 km, classifying this as a short-haul route. This relatively short distance still often involves connecting flights, impacting the overall travel time.

How much is a round trip from Milwaukee to St. Louis

Regular price: $235 - $446

Prices for flights from Milwaukee to St. Louis are currently within the regular range.

The regular price range for flights from Milwaukee to St. Louis is typically between $235 and $446. The current lowest deal is $320 with Frontier Airlines for travel from Dec 7-Dec 16.

now $320

Low $235

High $446

The cheapest time to fly from Milwaukee to St. Louis

The cheapest month to fly from MKE to STL is February, with a median price of $291. The most expensive month is July, with a median price of $1033. Generally, prices are lower from January to November.

February

Cheapest

Flights from $291

July

Most Expensive

Flights from $1,033

Jan

Feb

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Milwaukee to St. Louis

Frontier Airlines

United Airlines

Deutsche Luft Hansa

Last-minute flights going from Milwaukee to St. Louis

Wed, Oct 28

⌛ Last-Minute

MKE - St. Louis

Milwaukee (MKE) - St. Louis (STL)

WestJet, Air Canada

$512

$2,560

One-way

Wed, Oct 28

⌛ Last-Minute

MKE - St. Louis

Milwaukee (MKE) - St. Louis (STL)

WestJet, Air Canada

$513

$2,560

One-way

Thu, Oct 29

⌛ Last-Minute

MKE - St. Louis

Milwaukee (MKE) - St. Louis (STL)

WestJet, Air Canada

$496

$1,941

One-way

Wed, Nov 4

⌛ Last-Minute

MKE - St. Louis

Milwaukee (MKE) - St. Louis (STL)

American Airlines

$350

$526

One-way

Thu, Nov 5

⌛ Last-Minute

MKE - St. Louis

Milwaukee (MKE) - St. Louis (STL)

WestJet, Air Canada

$259

$1,635

One-way

Fri, Nov 6

⌛ Last-Minute

MKE - St. Louis

Milwaukee (MKE) - St. Louis (STL)

WestJet, Air Canada

$258

$1,401

One-way

Biggest price drops on these dates for flights from Milwaukee to St. Louis

7 nights

Dec 7 - Dec 14

$290 → $327

13%

9 nights

Dec 7 - Dec 16

$276 → $327

19%

4 nights

Nov 19 - Nov 23

$285 → $344

21%

4 nights

Nov 11 - Nov 15

$303 → $394

30%

Popular Airports to fly from Milwaukee to St. Louis

Milwaukee - St. Louis route insights

💸 Price insights

Recent fares are above the typical level

Recent fares for flights from Milwaukee to St. Louis are above the typical level.

📅 Best time to fly

Fly in February for the best prices

Historically, February, August, and September offer the lowest median prices for this route.

⏱️ Flight duration

Connecting flights average 8h 57m

Connecting flights from Milwaukee to St. Louis typically take 8 hours and 57 minutes.

✈️ Airlines & availability

Connecting flights are most common

About 60% of recent deals for this route include connecting flights.

🏆 Airline highlight

Frontier Airlines has 33 direct deals

Frontier Airlines offers 33 direct deals, followed by United Airlines with 21 direct deals.

🎯 Booking tip

Deals for this route are rare

Deals for flights from Milwaukee to St. Louis have historically been rare.

Milwaukee main airports to depart from

General Mitchell International (MKE)

Cheapest

General Mitchell International Airport (MKE) is a convenient option for flights from Milwaukee to St. Louis.

📍 ~10 km from Milwaukee (reachable by car)

💸 Flights from ~$342

St. Louis main airports to arrive at

St. Louis Lambert International (STL)

Cheapest

St. Louis Lambert International is a primary airport for travelers heading to St. Louis.

📍 ~20 km from St. Louis (reachable by car)

💸 Flights from ~$254

Airports nearby St. Louis used as alternative

MidAmerica St. Louis (BLV)

MidAmerica St. Louis (BLV) is a useful alternative, especially for travelers on the Illinois side of the metro area.

📍 ~45 km from St. Louis (reachable by car)

💸 Flights from ~$484

Business & First Class Flight Deals to St. Louis

Discover luxury on the budget with premium cabin class on flights from Milwaukee to St. Louis.

Elite

Best Elite deals to St. Louis

Exclusive daily First Class, Business Class, and Premium Economy flight deals, refreshed every 24 hours.

From MKE

Elite

Oct 30

St. Louis, United States

34% AI deal score

$4,213

Alaska Airlines, Inc., +1

Business Class

From MKE

Elite

Oct 30

St. Louis, United States

34% AI deal score

$4,559

Alaska Airlines, Inc., +1

Business Class

From MKE

Elite

Nov 21

St. Louis, United States

33% AI deal score

$3,279

Alaska Airlines, Inc., +1

Business Class

From MKE

Elite

Nov 11

St. Louis, United States

33% AI deal score

$3,360

Alaska Airlines, Inc.

Business Class

From MKE

Elite

Nov 23

St. Louis, United States

33% AI deal score

$3,361

Alaska Airlines, Inc., +1

Business Class

From MKE

Elite

Nov 11

St. Louis, United States

33% AI deal score

$3,458

Alaska Airlines, Inc.

Business Class

From MKE

Elite

Nov 01

St. Louis, United States

33% AI deal score

$3,535

Alaska Airlines, Inc., +1

Business Class

From MKE

Elite

Nov 02

St. Louis, United States

33% AI deal score

$3,569

Alaska Airlines, Inc., +1

Business Class

From MKE

Elite

Nov 21

St. Louis, United States

33% AI deal score

$3,597

Alaska Airlines, Inc., +1

Business Class

From MKE

Elite

Nov 01

St. Louis, United States

33% AI deal score

$3,641

Alaska Airlines, Inc., +1

Business Class

From MKE

Elite

Nov 01

St. Louis, United States

33% AI deal score

$3,729

Alaska Airlines, Inc., +1

Business Class

From MKE

Elite

Oct 30

St. Louis, United States

33% AI deal score

$4,320

Alaska Airlines, Inc., +1

Business Class

Frequently Asked Questions About Flights to St. Louis

To find more affordable flights, consider being flexible with your travel dates and times. Comparing prices across different airlines and booking sites can often reveal better deals. Looking into flights during off-peak seasons may also result in lower fares.

Booking flights in advance, often several weeks or months before your desired departure, can sometimes lead to better prices. However, prices can fluctuate, so monitoring fares over time may help you identify a good booking window. Last-minute deals are less common but can occasionally appear.

Comparing nearby airports can sometimes offer alternative flight options or potentially lower prices. While it may require additional travel time to and from these airports, the savings on airfare could be significant. Always factor in the total cost and convenience when considering this option.

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Flights to St. Louis from other cities

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Milwaukee to St. Louis: Overview

Insights for flights from Milwaukee to St. Louis

How much is a round trip from Milwaukee to St. Louis

Regular price: $235 - $446

Prices for flights from Milwaukee to St. Louis are currently within the regular range.

The regular price range for flights from Milwaukee to St. Louis is typically between $235 and $446. The current lowest deal is $320 with Frontier Airlines for travel from Dec 7-Dec 16.

now $320

Low $235

High $446

The cheapest time to fly from Milwaukee to St. Louis

February

Cheapest

Flights from $291

July

Most Expensive

Flights from $1,033

Jan

Feb

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Milwaukee to St. Louis

Frontier Airlines

United Airlines

Deutsche Luft Hansa

Last-minute flights going from Milwaukee to St. Louis

Wed, Oct 28

⌛ Last-Minute

MKE - St. Louis

Milwaukee (MKE) - St. Louis (STL)

WestJet, Air Canada

$512

$2,560

One-way

Wed, Oct 28

⌛ Last-Minute

MKE - St. Louis

Milwaukee (MKE) - St. Louis (STL)

WestJet, Air Canada

$513

$2,560

One-way

Thu, Oct 29

⌛ Last-Minute

MKE - St. Louis

Milwaukee (MKE) - St. Louis (STL)

WestJet, Air Canada

$496

$1,941

One-way

Wed, Nov 4

⌛ Last-Minute

MKE - St. Louis

Milwaukee (MKE) - St. Louis (STL)

American Airlines

$350

$526

One-way

Thu, Nov 5

⌛ Last-Minute

MKE - St. Louis

Milwaukee (MKE) - St. Louis (STL)

WestJet, Air Canada

$259

$1,635

One-way

Fri, Nov 6

⌛ Last-Minute

MKE - St. Louis

Milwaukee (MKE) - St. Louis (STL)

WestJet, Air Canada

$258

$1,401

One-way

Biggest price drops on these dates for flights from Milwaukee to St. Louis

7 nights

Dec 7 - Dec 14

$290 → $327

13%

9 nights

Dec 7 - Dec 16

$276 → $327

19%

4 nights

Nov 19 - Nov 23

$285 → $344

21%

4 nights

Nov 11 - Nov 15

$303 → $394

30%

Popular Airports to fly from Milwaukee to St. Louis

Milwaukee - St. Louis route insights

💸 Price insights

Recent fares are above the typical level

Recent fares for flights from Milwaukee to St. Louis are above the typical level.

📅 Best time to fly

Fly in February for the best prices

Historically, February, August, and September offer the lowest median prices for this route.

⏱️ Flight duration

Connecting flights average 8h 57m

Connecting flights from Milwaukee to St. Louis typically take 8 hours and 57 minutes.

✈️ Airlines & availability

Connecting flights are most common

About 60% of recent deals for this route include connecting flights.

🏆 Airline highlight

Frontier Airlines has 33 direct deals

Frontier Airlines offers 33 direct deals, followed by United Airlines with 21 direct deals.

🎯 Booking tip

Deals for this route are rare

Deals for flights from Milwaukee to St. Louis have historically been rare.

Milwaukee main airports to depart from

General Mitchell International (MKE)

Cheapest

General Mitchell International Airport (MKE) is a convenient option for flights from Milwaukee to St. Louis.

📍 ~10 km from Milwaukee (reachable by car)

💸 Flights from ~$342

St. Louis main airports to arrive at

St. Louis Lambert International (STL)

Cheapest

St. Louis Lambert International is a primary airport for travelers heading to St. Louis.

📍 ~20 km from St. Louis (reachable by car)

💸 Flights from ~$254

Airports nearby St. Louis used as alternative

MidAmerica St. Louis (BLV)

MidAmerica St. Louis (BLV) is a useful alternative, especially for travelers on the Illinois side of the metro area.

📍 ~45 km from St. Louis (reachable by car)

💸 Flights from ~$484

St. Louis, United States

33% AI deal score

$4,320

Alaska Airlines, Inc., +1

Business Class

Frequently Asked Questions About Flights to St. Louis

Cheap Flights from Milwaukee to St. Louis

Today’s best flight deals from Milwaukee to St. Louis

Milwaukee to St. Louis: Overview

Insights for flights from Milwaukee to St. Louis

How much is a round trip from Milwaukee to St. Louis

The cheapest time to fly from Milwaukee to St. Louis

Direct flights from Milwaukee to St. Louis

Last-minute flights going from Milwaukee to St. Louis

Biggest price drops on these dates for flights from Milwaukee to St. Louis

Popular Airports to fly from Milwaukee to St. Louis

Milwaukee - St. Louis route insights

Recent fares are above the typical level

Fly in February for the best prices

Connecting flights average 8h 57m

Connecting flights are most common

Frontier Airlines has 33 direct deals

Deals for this route are rare

Milwaukee main airports to depart from

St. Louis main airports to arrive at

Airports nearby St. Louis used as alternative

Business & First Class Flight Deals to St. Louis

Best Elite deals to St. Louis

Oct 30

Oct 30

Nov 21

Nov 11

Nov 23

Nov 11

Nov 01

Nov 02

Nov 21

Nov 01

Nov 01

Oct 30

Frequently Asked Questions About Flights to St. Louis

How can I find cheap flights from Milwaukee to St. Louis?

When should I book flights from Milwaukee to St. Louis?

Should I compare nearby airports for flights from Milwaukee to St. Louis?

Are direct flights from Milwaukee to St. Louis always the best option?

Can flexible travel dates help on Milwaukee to St. Louis flights?

What extra costs should I check before booking Milwaukee to St. Louis flights?

Related routes

More routes from Milwaukee

Flights to St. Louis from other cities

Milwaukee to St. Louis: Overview

Insights for flights from Milwaukee to St. Louis

How much is a round trip from Milwaukee to St. Louis

The cheapest time to fly from Milwaukee to St. Louis

Direct flights from Milwaukee to St. Louis

Last-minute flights going from Milwaukee to St. Louis

Biggest price drops on these dates for flights from Milwaukee to St. Louis

Popular Airports to fly from Milwaukee to St. Louis

Milwaukee - St. Louis route insights

Recent fares are above the typical level

Fly in February for the best prices

Connecting flights average 8h 57m

Connecting flights are most common

Frontier Airlines has 33 direct deals

Deals for this route are rare

Milwaukee main airports to depart from

St. Louis main airports to arrive at

Airports nearby St. Louis used as alternative

Business & First Class Flight Deals to St. Louis

Best Elite deals to St. Louis

Oct 30

Oct 30

Nov 21

Nov 11

Nov 23

Nov 11

Nov 01

Nov 02

Nov 21

Nov 01

Nov 01

Oct 30

Frequently Asked Questions About Flights to St. Louis

How can I find cheap flights from Milwaukee to St. Louis?

When should I book flights from Milwaukee to St. Louis?

Should I compare nearby airports for flights from Milwaukee to St. Louis?