Chicago to St Louis

MDWSTL

Fly from Chicago to St Louis starting at SAR 185 with Southwest Airlines.Best fare available on Aug 19, 2026.Limited seats. Better plans. Book before it's gone.

Chicago to St Louis cheapest flights this week

10 Aug
Frontier Airlines
06:05MDW
17:37STL
1 StopSAR 873VIEW DEAL
11 Aug
Southwest Airlines
14:00MDW
15:10STL
DirectSAR 370VIEW DEAL
13 Aug
Frontier Airlines
11:06MDW
17:37STL
1 StopSAR 655VIEW DEAL
16 Aug
Frontier Airlines
06:05MDW
08:57STL
1 StopSAR 463VIEW DEAL
19 Aug
Southwest Airlines
08:15MDW
09:35STL
DirectSAR 185VIEW DEAL
22 Aug
Southwest Airlines
09:55MDW
11:05STL
DirectSAR 670VIEW DEAL
22 Aug
Southwest Airlines
06:35MDW
07:45STL
DirectSAR 892VIEW DEAL
27 Aug
Frontier Airlines
06:05MDW
17:22STL
1 StopSAR 333VIEW DEAL
27 Aug
Southwest Airlines
20:55MDW
22:05STL
DirectSAR 222VIEW DEAL
30 Aug
Frontier Airlines
06:05MDW
17:22STL
1 StopSAR 507VIEW DEAL

Chicago to St Louis monthly flight fare trend

Aug
from SAR 185
Sep
from SAR 222
Oct
No flights
Nov
No flights
Dec
from SAR 241
Jan
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

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