Cheap flights from St. Louis, MO to Milwaukee, WI

Flights starting at £67. Choose between United Airlines, Frontier Airlines, or Spirit Airlines to find the best price.

Make your travel wishlist, we'll do the rest
Hidden deals
Effortless booking
Travel hacking
Book your trip to arrive at General Mitchell International, or Milwaukee, WI - West Town. The most popular airlines for this route are United Airlines, Frontier Airlines, Spirit Airlines, Sun Country Airlines, and JetBlue Airways. St. Louis and Milwaukee have 73 direct flights per week.

Check-in for a flight from St. Louis to Milwaukee

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
United AirlinesUALUAYesNo
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight
Sun Country AirlinesSCXSYYesNo
JetBlue AirwaysJBUB6NoOpens 24 days before flight
Closes 2 hours before flight

Weather in Milwaukee

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January-2°C-8°C
February-1°C-7°C
March4°C-1°C
April10°C3°C
May16°C8°C
June22°C14°C
July25°C18°C
August25°C17°C
September21°C14°C
October14°C7°C
November7°C1°C
December1°C-3°C
Hottest Month
25°C
July
Coldest month
-8°C
January
Sunny days
258
days per year
Snow days
19
days per year

14 day forecast

Saturday
16 Mar
10°C4°C
23 Mar
5°C2°C
Sunday
17 Mar
2°C-1°C
24 Mar
64%
2°C1°C
Monday
18 Mar
3°C-2°C
25 Mar
73%
1°C-1°C
Tuesday
19 Mar
8°C0°C
26 Mar
73%
6°C0°C
Wednesday
20 Mar
3°C-1°C
27 Mar
27%
2°C-4°C
Thursday
21 Mar
1°C-4°C
28 Mar
3°C-3°C
Friday
22 Mar
5°C2°C
29 Mar
2°C-2°C

Frequently asked questions

What are the most popular routes to and from St. Louis?
What are the most popular routes to and from Milwaukee?
What airports are near St. Louis?
What airports are near Milwaukee?
Is it possible to combine flights, buses, and trains in one itinerary when traveling between St. Louis and Milwaukee?
What is Virtual Interlining and how do I use it?
Which airlines fly between St. Louis and Milwaukee?
When's the best time to travel between St. Louis and Milwaukee?
What flights operate between St. Louis and Milwaukee?
How many airports are there near St. Louis?
How many airports are there near Milwaukee?
What time do nonstop (direct) flights between St. Louis and Milwaukee depart?
What time do nonstop (direct) flights between St. Louis and Milwaukee arrive?
What time do flights between St. Louis and Milwaukee depart?
What time do flights between St. Louis and Milwaukee arrive?

Explore alternative trips

Flights from St. Louis

Flights to Milwaukee

Popular routes

Find the best connection from St. Louis to Milwaukee
Search flights, trains & buses
We hack the system,
you fly for less