Chicago to St Louis
MDWSTL
Fly from Chicago to St Louis starting at USD 176 with F9.
Best fare available on May 6, 2026.
Limited seats. Better plans. Book before it's gone.
Chicago to St Louis cheapest flights this week
23 Apr
F9
14:15MDW
--:--STL
2 Stop$184VIEW DEAL
25 Apr
F9
19:34MDW
--:--STL
2 Stop$213VIEW DEAL
27 Apr
F9
06:20MDW
--:--STL
1 Stop$178VIEW DEAL
29 Apr
F9
06:10MDW
--:--STL
2 Stop$208VIEW DEAL
6 May
F9
15:07MDW
--:--STL
1 Stop$176VIEW DEAL
22 Aug
WN
09:55MDW
--:--STL
Direct$181VIEW DEAL
Chicago to St Louis monthly flight fare trend
Apr
from USD 178
May
from USD 176
Jun
No flights
Jul
No flights
Aug
from USD 181
Sep
No flights
Airport Details
Origin
Chicago
Chicago Midway International Airport (MDW)
Chicago, MDW
Zone
Chicago
Elev
620 ft
Destination
St Louis
St. Louis Lambert International Airport (STL)
St Louis, STL
Zone
Chicago
Elev
618 ft
