St Louis to Chicago
STLMDW
Fly from St Louis to Chicago starting at SAR 23 with Frontier Airlines.
Best fare available on Jun 15, 2026.
Limited seats. Better plans. Book before it's gone.
St Louis to Chicago cheapest flights this week
St Louis to Chicago monthly flight fare trend
Jun
from SAR 23
Jul
No flights
Aug
No flights
Sep
No flights
Oct
No flights
Nov
No flights
Airport Details
Origin
St Louis
St. Louis Lambert International Airport (STL)
St Louis, STL
Zone
Chicago
Elev
618 ft
Destination
Chicago
Chicago Midway International Airport (MDW)
Chicago, MDW
Zone
Chicago
Elev
620 ft
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