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

Direct flights are often convenient, saving travel time by avoiding layovers. However, they are not always the cheapest option. Flights with one or more connections can sometimes offer significantly lower fares, especially if you are willing to spend extra time traveling.

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 off-peak seasons, or at less popular times of day often results in lower fares. Even shifting your departure or return by a day or two can sometimes lead to considerable savings.

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. These additional fees can add up and impact the total cost of your trip.

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 2 days ago

405 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Jul 26, 2026.)

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

Explore current cheapest deals departing from Milwaukee to St. Louis

2026-08-24 – 2026-08-31
MKE - St. Louis
39% AI deal score
$153
$237
Round trip
2026-08-12 – 2026-08-18
MKE - St. Louis
40% AI deal score
$159
$237
Round trip
2026-08-15 – 2026-08-22
MKE - St. Louis
40% AI deal score
$157
$237
Round trip
2026-08-06 – 2026-08-10
MKE - St. Louis
40% AI deal score
$172
$237
Round trip
2026-09-03 – 2026-09-07
MKE - St. Louis
39% AI deal score
$144
$237
Round trip
2026-08-02 – 2026-08-03
MKE - St. Louis
71% AI deal score
$361
$246
Round trip
2026-09-24 – 2026-09-28
MKE - St. Louis
38% AI deal score
$149
$261
Round trip
2026-10-06 – 2026-10-08
MKE - St. Louis
38% AI deal score
$156
$261
Round trip
2026-08-22 – 2026-08-26
MKE - St. Louis
46% AI deal score
$304
$261
Round trip
2026-08-24 – 2026-08-25
MKE - St. Louis
36% AI deal score
$164
$261
Round trip

Milwaukee to St. Louis: Overview

Insights for flights from Milwaukee to St. Louis

Most itineraries for flights from Milwaukee to St. Louis connect at least once, with 0% of recent fares being non-stop. For connecting flights, the typical number of stopovers is 2. This means travelers should expect to factor in connections when planning their journey.

If you are looking for cheap flights from Milwaukee to St. Louis, fares typically range from $281–$281, with a median of $281. Right now, current fares are near the typical level. Approximately 14% of recent fares were classified as a good price, indicating that finding deals is possible. New deals appear almost daily, offering frequent opportunities to find competitive prices.

When is the cheapest time to fly from Milwaukee to St. Louis? The data indicates that November is typically the most affordable month, with a median fare of $141. Following closely are December, with a median fare of $154, and July, with a median fare of $166. Planning your travel during these months could result in lower costs.

How long is the flight from Milwaukee to St. Louis? A typical journey, including connections, takes approximately 6h 54m. This duration accounts for the fact that most routes involve at least one stopover, so travelers should plan accordingly for the total travel time.

The distance between Milwaukee and St. Louis is 511 km, classifying this as a short-haul route. This distance typically translates to shorter overall travel times compared to medium or long-haul flights, even with connections.

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

Regular price: $132 - $363

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

The regular price range for this route is between $132 and $363. The current lowest deal is $236 with Southwest Airlines for travel from Nov 19-Nov 26.

now $236

Low $132

High $363

The cheapest time to fly from Milwaukee to St. Louis

The cheapest month to fly from MKE to STL is November, with a median price of $141. The most expensive month is January, with a median price of $377. Prices are generally lower from March to December.

November

Cheapest

Flights from $141

January

Most Expensive

Flights from $377

Jan

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Milwaukee to St. Louis

Southwest Airlines

Last-minute flights going from Milwaukee to St. Louis

Sun, Jul 26

⌛ Last-Minute

MKE - St. Louis

Milwaukee (MKE) - St. Louis (STL)

$446

$467

One-way

Sun, Jul 26

⌛ Last-Minute

MKE - St. Louis

Milwaukee (MKE) - St. Louis (STL)

$456

$741

One-way

Mon, Jul 27

⌛ Last-Minute

MKE - St. Louis

Milwaukee (MKE) - St. Louis (STL)

American Airlines

$446

$455

One-way

Mon, Jul 27

⌛ Last-Minute

MKE - St. Louis

Milwaukee (MKE) - St. Louis (STL)

United Airlines

$455

$649

One-way

Tue, Jul 28

⌛ Last-Minute

MKE - St. Louis

Milwaukee (MKE) - St. Louis (STL)

$454

$472

One-way

Thu, Jul 30

⌛ Last-Minute

MKE - St. Louis

Milwaukee (MKE) - St. Louis (STL)

$405

$472

One-way

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

3 nights

Aug 6 - Aug 9

$375 → $306

18%

3 nights

Oct 8 - Oct 11

$299 → $245

18%

4 nights

Aug 27 - Aug 31

$309 → $278

10%

3 nights

Aug 28 - Aug 31

$304 → $280

Popular Airports to fly from Milwaukee to St. Louis

Milwaukee - St. Louis route insights

💸 Price insights

Recent fares are near the typical level.

Recent fares for Milwaukee to St. Louis are near the typical level at $236.

📅 Best time to fly

Fly in November for the best prices.

Historically, November is the cheapest month to fly, with a median price of $141.

⏱️ Flight duration

Connecting flights typically take 6h 54m.

Flights from Milwaukee to St. Louis typically take 6h 54m with 2 stopovers.

✈️ Airlines & availability

Connecting flights are dominant for this route.

Connecting flights are dominant, with 0% direct flights available in the last 90 days.

🏆 Airline highlight

Southwest Airlines offers deals on this route.

Southwest Airlines has offered deals on this route, including a recent fare of $236.

🎯 Booking tip

Deals appear frequently for this route.

Deals from Milwaukee to St. Louis appear frequently, so check often for good prices.

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.

📍 ~11 km from city center (reachable by car).

💸 Flights from ~$246

St. Louis main airports to arrive at

St. Louis Lambert International (STL)

Cheapest

St. Louis Lambert International Airport is a convenient arrival point for reaching St. Louis.

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

💸 Flights from ~$246

Airports nearby St. Louis used as alternative

MidAmerica St. Louis (BLV)

MidAmerica St. Louis is the closest alternative and useful for travelers on the Illinois side of the metro area.

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

💸 Flights from ~$445

Business & First Class Flight Deals to St. Louis

75% AI deal score

$1,567

$717

Save $850

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 also help you discover better deals. Looking into flights with layovers may sometimes present lower fares than direct routes.

Booking flights in advance, often several weeks or months before your intended travel date, can sometimes result in lower prices. However, prices can fluctuate, so monitoring fare trends may be beneficial. There isn't a single best time, as deals can appear unexpectedly.

Yes, comparing nearby airports can often provide more flight options and potentially lower prices. Sometimes, flying into or out of a smaller airport a short distance away can be more economical. Always factor in the cost and time of ground transportation to and from these alternative airports.

Related routes

More routes from Milwaukee

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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: $132 - $363

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

The regular price range for this route is between $132 and $363. The current lowest deal is $236 with Southwest Airlines for travel from Nov 19-Nov 26.

now $236

Low $132

High $363

The cheapest time to fly from Milwaukee to St. Louis

November

Cheapest

Flights from $141

January

Most Expensive

Flights from $377

Jan

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Milwaukee to St. Louis

Southwest Airlines

Last-minute flights going from Milwaukee to St. Louis

Sun, Jul 26

⌛ Last-Minute

MKE - St. Louis

Milwaukee (MKE) - St. Louis (STL)

$446

$467

One-way

Sun, Jul 26

⌛ Last-Minute

MKE - St. Louis

Milwaukee (MKE) - St. Louis (STL)

$456

$741

One-way

Mon, Jul 27

⌛ Last-Minute

MKE - St. Louis

Milwaukee (MKE) - St. Louis (STL)

American Airlines

$446

$455

One-way

Mon, Jul 27

⌛ Last-Minute

MKE - St. Louis

Milwaukee (MKE) - St. Louis (STL)

United Airlines

$455

$649

One-way

Tue, Jul 28

⌛ Last-Minute

MKE - St. Louis

Milwaukee (MKE) - St. Louis (STL)

$454

$472

One-way

Thu, Jul 30

⌛ Last-Minute

MKE - St. Louis

Milwaukee (MKE) - St. Louis (STL)

$405

$472

One-way

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

3 nights

Aug 6 - Aug 9

$375 → $306

18%

3 nights

Oct 8 - Oct 11

$299 → $245

18%

4 nights

Aug 27 - Aug 31

$309 → $278

10%

3 nights

Aug 28 - Aug 31

$304 → $280

Popular Airports to fly from Milwaukee to St. Louis