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

1 passenger, economy

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

Compare prices, duration and stops

Frontier Airlines
F9 1596
15:26
Chicago, O'Hare International Airport (ORD)
Sun, 20 sep
26h 44min
1 stop
18:10
St Louis, Lambert-St. Louis (STL)
Mon, 21 sep +1
S$122
Frontier Airlines
F9 2292 Best price
11:25
Chicago, Chicago Midway International Airport (MDW)
Mon, 21 sep
6h 45min
1 stop
18:10
St Louis, Lambert-St. Louis (STL)
Mon, 21 sep
S$92
Frontier Airlines
F9 1596
11:20
Chicago, O'Hare International Airport (ORD)
Wed, 23 sep
6h 50min
1 stop
18:10
St Louis, Lambert-St. Louis (STL)
Wed, 23 sep
S$94
Frontier Airlines
F9 1483
11:30
Chicago, O'Hare International Airport (ORD)
Sat, 26 sep
12h 47min
1 stop
00:17
St Louis, Lambert-St. Louis (STL)
Sun, 27 sep +1
S$251
Frontier Airlines
F9 2292
11:25
Chicago, Chicago Midway International Airport (MDW)
Sun, 27 sep
30h 45min
1 stop
18:10
St Louis, Lambert-St. Louis (STL)
Mon, 28 sep +1
S$184
Frontier Airlines
F9 1442
00:28
Chicago, O'Hare International Airport (ORD)
Mon, 28 sep
17h 42min
1 stop
18:10
St Louis, Lambert-St. Louis (STL)
Mon, 28 sep
S$122
Frontier Airlines
F9 2292
11:25
Chicago, Chicago Midway International Airport (MDW)
Mon, 28 sep
6h 45min
1 stop
18:10
St Louis, Lambert-St. Louis (STL)
Mon, 28 sep
S$245
Frontier Airlines
F9 1596
12:15
Chicago, O'Hare International Airport (ORD)
Wed, 28 oct
10h 25min
1 stop
22:40
St Louis, Lambert-St. Louis (STL)
Wed, 28 oct
S$98
Frontier Airlines
F9 2198
00:50
Chicago, O'Hare International Airport (ORD)
Fri, 30 oct
21h 50min
1 stop
22:40
St Louis, Lambert-St. Louis (STL)
Fri, 30 oct
S$149
Frontier Airlines
F9 1596
15:26
Chicago, O'Hare International Airport (ORD)
Fri, 30 oct
7h 14min
1 stop
22:40
St Louis, Lambert-St. Louis (STL)
Fri, 30 oct
S$160
Frontier Airlines
F9 1596
16:26
Chicago, O'Hare International Airport (ORD)
Mon, 2 nov
7h 14min
1 stop
23:40
St Louis, Lambert-St. Louis (STL)
Mon, 2 nov
S$145
Frontier Airlines
F9 1483
12:30
Chicago, O'Hare International Airport (ORD)
Fri, 6 nov
12h 44min
1 stop
01:14
St Louis, Lambert-St. Louis (STL)
Sat, 7 nov +1
S$109

Low price calendar

September 2026
Price chart (September 2026)
min: S$76 · max: S$220
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S$122
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Good deal
S$92
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S$94
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S$140
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S$76

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

All →
Flight Departure days Price from
F92292 MonSun S$92
F91596 MonWedFriSun S$94
F91483 FriSat S$109
F91442 Mon S$122
F92198 Fri S$149

Popular destinations from Chicago

All →
CHI
Chicago — Orlando
United States → United States
ORL
from
S$27
CHI
Chicago — Orlando
United States → United States
MCO
from
S$27
CHI
Chicago — Atlanta
United States → United States
ATL
from
S$28
CHI
Chicago — Houston
United States → United States
IAH
from
S$28
CHI
Chicago — Houston
United States → United States
HOU
from
S$28
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$98
DFW
Dallas — St Louis
United States → United States
STL
from
S$112
NYC
New York — St Louis
United States → United States
STL
from
S$116

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

We gathered interesting facts about the flight for you

Cheapest flight

F9 2292

S$92

Fastest flight

F9 2292

6h 45min

Average time

13h 58min

Distance

9 748 km

Passenger reviews

No reviews for this route yet

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

Southwest Airlines
Southwest Airlines
Mon, Wed, Thu, Fri, Sat
Price from
S$69
American Airlines
American Airlines
Tue, Thu, Fri, Sat
Price from
S$74
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

change

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 Frontier Airlines ticket Chicago – St Louis costs S$92, flight F92292, departing at 11:25.
The fastest Frontier Airlines flight Chicago – St Louis takes 6h 45min, flight F92292, departing at 11:25.
The earliest Frontier Airlines flight Chicago – St Louis(F91596)departs at 15:26.