St Louis to Chicago Flights STL → MDW

St. Louis Lambert International Airport → Chicago Midway International Airport

🇺🇸 St Louis, US → 🇺🇸 Chicago, US

The St Louis to Chicago route connects St. Louis Lambert International Airport (STL) in US with Chicago Midway International Airport (MDW) in US. This short-haul flight covers approximately 583 miles (938 km) with a typical flight time of 1h 10m. This route is operated by Southwest. AirportRoutes has tracked 3 daily flights on this route.

Departure Airport

St. Louis Lambert International Airport

ICAO Code:
KSTL
IATA Code:
STL
City:
🇺🇸 St Louis
Country:
US
Elevation:
618 ft

Destination Airport

Chicago Midway International Airport

ICAO Code:
KMDW
IATA Code:
MDW
City:
🇺🇸 Chicago
Country:
US
Elevation:
620 ft

1

Operator

3

Daily Flights

583

Miles

1h 10m

Flight Duration

Route Map

Operating Airlines

Airline ICAO IATA
Southwest SWA WN

Flight Schedule Pattern

Day Flights Observed Frequency Activity
Monday 2 17%
Tuesday 4 33%
Wednesday 0 0%
Thursday 4 33%
Friday 0 0%
Saturday 2 17%
Sunday 0 0%

Pattern Analysis

3 Daily Flights:
SWA1517 SWA3116 SWA3721
Data Points: 12
API observations used to build this analysis
Weekdays: 10 flights
Weekend: 2 flights
Business Route More active on weekdays

All Flight Routes

1 Route
Note: This table shows aggregated route data by airline. Each airline may operate multiple daily flights at different times. See the "Spotted Departure Times" section below for all observed departure times.
Airline Flight Numbers Aircraft Type Typical Time Days Active Last Seen Status
Southwest
SWA / WN
SWA1517 SWA3116 SWA3721 B737 07:40 7:40 AM (Representative)
M T W T F S S
Jan 17, 2026 Active
Total Routes: 1
Active Routes: 1
Unique Airlines: 1
Aircraft Types: 1

Spotted Departure Times

Departure Time Operator ICAO IATA
07:40 7:40 AM Southwest SWA WN

Time Information

Times are shown in the departure airport's local timezone (KSTL - America/Chicago).

Total Departure Times: 1
Time Range:
07:40 - 07:40
These are typical departure times observed from actual flights. Times may vary by season and schedule changes.