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Flights Chicago – St Louis (Lambert-St. Louis), Southwest Airlines

1 passenger, economy

Flight schedule Chicago – St Louis (Lambert-St. Louis), Southwest Airlines

Compare prices, duration and stops

Southwest Airlines
WN 3877
15:10
Chicago, Chicago Midway International Airport (MDW)
Wed, 30 sep
1h 10min
Direct
16:20
St Louis, Lambert-St. Louis (STL)
Wed, 30 sep
S$76
Southwest Airlines
WN 2779
01:50
Chicago, Chicago Midway International Airport (MDW)
Wed, 14 oct
1h 15min
Direct
03:05
St Louis, Lambert-St. Louis (STL)
Wed, 14 oct
S$173
Southwest Airlines
WN 1687 Best price
03:05
Chicago, Chicago Midway International Airport (MDW)
Fri, 16 oct
1h 15min
Direct
04:20
St Louis, Lambert-St. Louis (STL)
Fri, 16 oct
S$69
Southwest Airlines
WN 806
16:05
Chicago, Chicago Midway International Airport (MDW)
Thu, 29 oct
1h 10min
Direct
17:15
St Louis, Lambert-St. Louis (STL)
Thu, 29 oct
S$169
Southwest Airlines
WN 2015
11:05
Chicago, Chicago Midway International Airport (MDW)
Sat, 31 oct
1h 10min
Direct
12:15
St Louis, Lambert-St. Louis (STL)
Sat, 31 oct
S$173
Southwest Airlines
WN 459
17:10
Chicago, Chicago Midway International Airport (MDW)
Fri, 6 nov
1h 10min
Direct
18:20
St Louis, Lambert-St. Louis (STL)
Fri, 6 nov
S$169
Southwest Airlines
WN 2737
17:30
Chicago, Chicago Midway International Airport (MDW)
Mon, 14 dec
1h 10min
Direct
18:40
St Louis, Lambert-St. Louis (STL)
Mon, 14 dec
S$77
Southwest Airlines
WN 2769
01:50
Chicago, Chicago Midway International Airport (MDW)
Thu, 14 jan
1h 15min
Direct
03:05
St Louis, Lambert-St. Louis (STL)
Thu, 14 jan
S$152
Southwest Airlines
WN 800
16:05
Chicago, Chicago Midway International Airport (MDW)
Wed, 10 feb
1h 15min
Direct
17:20
St Louis, Lambert-St. Louis (STL)
Wed, 10 feb
S$152

Low price calendar

September 2026
Price chart (September 2026)
min: S$76 · max: S$220
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Good deal
S$92
22
S$207
23
S$94
24
S$220
25
no data
26
S$140
27
S$185
28
S$122
29
no data
30
Good deal
S$76

Popular Southwest Airlines flights Chicago – St Louis (Lambert-St. Louis)

All →
Flight Departure days Price from
WN1687 Fri S$69
WN3877 Wed S$76
WN2737 Mon S$77
WN2769 Thu S$152
WN800 Wed S$152
WN459 Fri S$169
WN806 Thu S$169
WN2015 Sat S$173
WN2779 Wed S$173

Popular destinations from Chicago

All →
CHI
Chicago — Orlando
United States → United States
ORL
from
S$27
CHI
Chicago — Atlanta
United States → United States
ATL
from
S$28
CHI
Chicago — Houston
United States → United States
IAH
from
S$29
CHI
Chicago — New York
United States → United States
NYC
from
S$30
CHI
Chicago — Denver
United States → United States
DEN
from
S$31
CHI
Chicago — Fort Lauderdale
United States → United States
FLL
from
S$31
CHI
Chicago — Miami
United States → United States
MIA
from
S$32

Popular destinations to St Louis

All →
DEN
Denver — St Louis
United States → United States
STL
from
S$51
MSP
Minneapolis — St Louis
United States → United States
STL
from
S$64
MIA
Miami — St Louis
United States → United States
STL
from
S$87
BNA
Nashville — St Louis
United States → United States
STL
from
S$91
HOU
Houston — St Louis
United States → United States
STL
from
S$98
PHL
Philadelphia — St Louis
United States → United States
STL
from
S$99
DFW
Dallas — St Louis
United States → United States
STL
from
S$113
NYC
New York — St Louis
United States → United States
STL
from
S$116

Flight statistics Chicago – St Louis (Lambert-St. Louis), Southwest Airlines

We gathered interesting facts about the flight for you

Cheapest flight

WN 1687

S$69

Fastest flight

WN 3877

1h 10min

Average time

1h 12min

Distance

9 748 km

Passenger reviews

No reviews for this route yet

Other airlines Chicago – St Louis (Lambert-St. Louis)

American Airlines
American Airlines
Tue, Thu, Fri, Sat
Price from
S$74
Frontier Airlines
Frontier Airlines
Mon, Wed, Fri, Sat, Sun
Price from
S$92
Allegiant Air
Allegiant Air
Sun
Price from
S$185
United Airlines
United Airlines
Tue, Sun
Price from
S$247
Contour Airlines
Contour Airlines
Thu
Price from
S$274

Internet abroad

eSIM · United States

All plans

change

3 GB

data

30

days

S$11

Buy

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2 GB

data

15

days

S$16

Buy

change

5 GB

data

30

days

S$18

Buy

change

3 GB

data

30

days

S$20

Buy

change

5 GB

data

30

days

S$29

Buy

Frequently Asked Questions

The cheapest Southwest Airlines ticket Chicago – St Louis costs S$69, flight WN1687, departing at 03:05.
The fastest Southwest Airlines flight Chicago – St Louis takes 1h 10min, flight WN3877, departing at 15:10.
The earliest Southwest Airlines flight Chicago – St Louis(WN3877)departs at 15:10.