STL - MKE

$107 Find Cheap Flights from St. Louis to Milwaukee - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$267
Typical prices: $237-$391
Southwest
Fri 9/25Sat 9/26
STL - MKE • Non-stop
Cheapest non-stop
$267
Typical prices: $237-$391
Southwest
Fri 9/25Mon 9/28
STL - MKE • Non-stop
Nonstop flights
You can fly direct with Southwest. Average duration is 1h 11m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $278 (round-trip)
Shortest trip • 2h 40m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 34% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Milwaukee!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from St. Louis to Milwaukee (STL-MKE)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Milwaukee

Fri, Sep 25 - Sat, Sep 26
Southwest Logo
7:05 pm - 8:20 pmSTL  Lambert-St Louis-MKE Milwaukee-Mitchell
1h 15mnonstop
Southwest Logo
6:15 am - 7:30 amMKE  Milwaukee-Mitchell-STL Lambert-St Louis
1h 15mnonstop
$267Southwest
Sat, Oct 3 - Sat, Oct 10
Southwest Logo
8:25 am - 9:40 amSTL  Lambert-St Louis-MKE Milwaukee-Mitchell
1h 15mnonstop
Southwest Logo
2:50 pm - 4:05 pmMKE  Milwaukee-Mitchell-STL Lambert-St Louis
1h 15mnonstop
$267Southwest
Wed, Sep 9 - Thu, Sep 10
Southwest Logo
8:30 am - 9:40 amSTL  Lambert-St Louis-MKE Milwaukee-Mitchell
1h 10mnonstop
Southwest Logo
4:50 pm - 6:05 pmMKE  Milwaukee-Mitchell-STL Lambert-St Louis
1h 15mnonstop
$267Southwest
Mon, Sep 21 - Sat, Sep 26
American Airlines Logo
11:01 am - 6:21 pmSTL  Lambert-St Louis-MKE Milwaukee-Mitchell
7h 20m1 stop Chicago O'Hare Intl
American Airlines Logo
2:48 pm - 12:27 amMKE  Milwaukee-Mitchell-STL Lambert-St Louis
9h 39m1 stop Chicago O'Hare Intl
$285American Airlines
Mon, Sep 21 - Thu, Sep 24
American Airlines Logo
11:01 am - 6:21 pmSTL  Lambert-St Louis-MKE Milwaukee-Mitchell
7h 20m1 stop Chicago O'Hare Intl
American Airlines Logo
2:48 pm - 12:27 amMKE  Milwaukee-Mitchell-STL Lambert-St Louis
9h 39m1 stop Chicago O'Hare Intl
$285American Airlines
Wed, Oct 7 - Wed, Oct 14
American Airlines Logo
7:29 am - 2:24 pmSTL  Lambert-St Louis-MKE Milwaukee-Mitchell
6h 55m1 stop Chicago O'Hare Intl
American Airlines Logo
8:45 am - 12:19 amMKE  Milwaukee-Mitchell-STL Lambert-St Louis
15h 34m1 stop Chicago O'Hare Intl
$285American Airlines
Sat, Oct 24 - Mon, Oct 26
United Airlines Logo
9:04 am - 1:43 pmSTL  Lambert-St Louis-MKE Milwaukee-Mitchell
4h 39m1 stop Chicago O'Hare Intl
United Airlines Logo
6:18 pm - 10:24 pmMKE  Milwaukee-Mitchell-STL Lambert-St Louis
4h 06m1 stop Chicago O'Hare Intl
$291United Airlines
Fri, Sep 11 - Sun, Sep 13
United Airlines Logo
5:30 pm - 10:36 pmSTL  Lambert-St Louis-MKE Milwaukee-Mitchell
5h 06m1 stop Chicago O'Hare Intl
United Airlines Logo
6:47 pm - 10:59 pmMKE  Milwaukee-Mitchell-STL Lambert-St Louis
4h 12m1 stop Chicago O'Hare Intl
$311United Airlines
Sat, Oct 24 - Mon, Oct 26
United Airlines Logo
9:30 am - 5:54 pmSTL  Lambert-St Louis-MKE Milwaukee-Mitchell
8h 24m1 stop Newark
United Airlines Logo
9:17 am - 3:43 pmMKE  Milwaukee-Mitchell-STL Lambert-St Louis
6h 26m1 stop Chicago O'Hare Intl
$357United Airlines
Sat, Oct 24 - Wed, Oct 28
Delta Logo
6:47 am - 12:44 pmSTL  Lambert-St Louis-MKE Milwaukee-Mitchell
5h 57m1 stop Detroit Metropolitan Wayne County
Delta Logo
10:49 am - 4:43 pmMKE  Milwaukee-Mitchell-STL Lambert-St Louis
5h 54m1 stop Minneapolis St Paul
$547Delta
Booking Insights

KAYAK's insights & trends for St. Louis to Milwaukee flights

Get data-powered insights and trends into flights from St. Louis to Milwaukee to help you find the cheapest flights, the best time to fly and much more.

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

Flight prices are below average for this route right now.

Flights to Milwaukee from St. Louis usually cost between $390 and $725 in September.
The lowest price found in the past 5 days was $221 on Delta (Sep 21-Sep 26).

What’s the cheapest day of the week to fly from St. Louis to Milwaukee?

For St. Louis to Milwaukee, Saturday is the cheapest day to fly on average and Monday is the most expensive. Flying from Milwaukee back to St. Louis, the best deals are generally found on Wednesday, with Sunday being the most expensive.

What is the cheapest month to fly from St. Louis to Milwaukee?

The cheapest month for flights from St. Louis to Milwaukee is October, where tickets cost $265 (return) on average. On the other hand, the most expensive months are January and February, where the average cost of round-trip tickets is $691 and $499 respectively.

Can I save money by flying with a layover from St. Louis to Milwaukee?

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $421 on average.

Good to know

Low season

December

Cheapest flight

$107
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from St. Louis to Milwaukee

When to book flights from St. Louis to Milwaukee

Are your dates flexible? Find out the best times to travel from St. Louis to Milwaukee based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

FAQs for booking flights from St. Louis to Milwaukee

  • What is the cheapest flight from St. Louis to Milwaukee?

    In the last 5 days, the lowest price for a flight from St. Louis to Milwaukee was $111 for a one-way ticket and $221 for a round-trip.

  • Do I need a passport to fly between St. Louis and Milwaukee?

    No, a passport isn't needed to fly from St. Louis to Milwaukee. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from St. Louis to Milwaukee?

    When flying out of St. Louis you will be using Lambert-St Louis. You will be landing at Milwaukee, also known as Milwaukee-Mitchell.

  • Which airlines offer Wi-Fi service onboard planes from St. Louis to Milwaukee?

    Only American Airlines offers inflight Wi-Fi service on the St. Louis to Milwaukee flight route.

  • Which aircraft models fly most regularly from St. Louis to Milwaukee?

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the St. Louis to Milwaukee flight route.

  • Which airline alliances offer flights from St. Louis to Milwaukee?

    oneworld, and Star Alliance are the airline alliances operating flights between St. Louis and Milwaukee, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from St. Louis to Milwaukee?

    There are nonstop flights from St. Louis to Milwaukee on a daily basis.

  • Which is the best airline for flights from St. Louis to Milwaukee, Southwest or United Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Milwaukee are Southwest and United Airlines. With an average price for the route of $393 and an overall rating of 8.0, Southwest is the most popular choice. United Airlines is also a great choice for the route, with an average price of $336 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from St. Louis to Milwaukee?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Milwaukee.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Milwaukee?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Milwaukee from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Milwaukee?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Milwaukee with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and MKE can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Milwaukee?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Milwaukee from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from St. Louis to Milwaukee

  • Looking for a cheap flight? 25% of our users found flights on this route for $295 or less one-way and $307 or less round-trip.

Prefer to fly direct from St. Louis to Milwaukee?

 
Find which airlines fly direct from Lambert-St Louis Airport to Milwaukee-Mitchell Airport, which days they fly and book direct flights.

Direct departures

Lambert-St Louis to Milwaukee-Mitchell

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Direct returns

Milwaukee-Mitchell to Lambert-St Louis

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Everything you need to know for your flight from St. Louis to Milwaukee

Information on your arrival and departure airports