United States · 318 miles (511 km)

Milwaukee (MKE) to Saint Louis (STL) flights

One airline flies nonstop from Milwaukee (MKE) to Saint Louis (STL): Southwest Airlines. The two airports are 318 miles (511 km) apart. There are also 8 ways to fly it with one stop, through Chicago, Chicago and Kansas City and more.

Airlines flying nonstop from MKE to STL

MKE to STL with one stop

8 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.

  • Via Chicago (ORD)American Airlines and United Airlines the whole way
    American Airlines logo
    United Airlines logo
    American Airlines logo
    United Airlines logo
  • Via Chicago (MDW)Southwest Airlines the whole way
    Southwest Airlines logo
    Southwest Airlines logo
  • Via Kansas City (MCI)Southwest Airlines the whole way
    Southwest Airlines logo
    Southwest Airlines logo
  • Via Detroit (DTW)Delta Air Lines the whole way
    Delta Air Lines logo
    Delta Air Lines logo
    Southwest Airlines logo
  • Via Minneapolis (MSP)Delta Air Lines the whole way
    Delta Air Lines logo
    Sun Country Airlines logo
    Delta Air Lines logo
    Southwest Airlines logo
  • Via Nashville (BNA)Southwest Airlines the whole way
    Southwest Airlines logo
    Southwest Airlines logo
  • Via Atlanta (ATL)Delta Air Lines the whole way
    Delta Air Lines logo
    Delta Air Lines logo
    Southwest Airlines logo
    Frontier Airlines logo
  • Via Charlotte (CLT)American Airlines the whole way
    American Airlines logo
    American Airlines logo
    Southwest Airlines logo

MKE to STL: common questions

Which airlines fly nonstop from MKE to STL?

Southwest Airlines flies nonstop from Milwaukee (MKE) to Saint Louis (STL).

How far is Milwaukee from Saint Louis by plane?

Milwaukee (MKE) and Saint Louis (STL) are 318 miles (511 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.

How many miles does MKE to STL cost?

It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for MKE to STL with taxes and fees.

Where can I connect between Milwaukee and Saint Louis?

The most direct connections are through Chicago (ORD), Chicago (MDW), Kansas City (MCI), Detroit (DTW) and Minneapolis (MSP). On 8 of them the same airline flies both flights, for example American Airlines through Chicago.

More routes

Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.