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

1 passenger, economy

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

Compare prices, duration and stops

United Airlines
UA 4576
02:30
Chicago, O'Hare International Airport (ORD)
Sun, 20 sep
1h 29min
Direct
03:59
St Louis, Lambert-St. Louis (STL)
Sun, 20 sep
265 €
United Airlines
UA 2000
19:07
Chicago, O'Hare International Airport (ORD)
Tue, 22 sep
1h 31min
Direct
20:38
St Louis, Lambert-St. Louis (STL)
Tue, 22 sep
189 €
United Airlines
UA 4539 Best price
01:51
Chicago, O'Hare International Airport (ORD)
Sun, 3 jan
1h 31min
Direct
03:22
St Louis, Lambert-St. Louis (STL)
Sun, 3 jan
167 €

Low price calendar

September 2026
Price chart (September 2026)
min: 51 € · max: 149 €
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125 €
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129 €
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82 €
21
Good deal
62 €
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140 €
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64 €
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149 €
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26
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95 €
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125 €
28
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82 €
29
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30
Good deal
51 €

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

All →
Flight Departure days Price from
UA4539 Sun 167 €
UA2000 Tue 189 €
UA4576 Sun 265 €

Popular destinations from Chicago

All →
CHI
Chicago — Orlando
United States → United States
ORL
from
18 €
CHI
Chicago — Orlando
United States → United States
MCO
from
18 €
CHI
Chicago — Atlanta
United States → United States
ATL
from
19 €
CHI
Chicago — Houston
United States → United States
IAH
from
19 €
CHI
Chicago — Houston
United States → United States
HOU
from
19 €
CHI
Chicago — New York
United States → United States
NYC
from
20 €
CHI
Chicago — Denver
United States → United States
DEN
from
21 €
CHI
Chicago — Fort Lauderdale
United States → United States
FLL
from
21 €
CHI
Chicago — Miami
United States → United States
MIA
from
21 €

Popular destinations to St Louis

All →
DEN
Denver — St Louis
United States → United States
STL
from
34 €
MSP
Minneapolis — St Louis
United States → United States
STL
from
43 €
MIA
Miami — St Louis
United States → United States
STL
from
59 €
BNA
Nashville — St Louis
United States → United States
STL
from
62 €
HOU
Houston — St Louis
United States → United States
STL
from
66 €
PHL
Philadelphia — St Louis
United States → United States
STL
from
67 €
DFW
Dallas — St Louis
United States → United States
STL
from
76 €
NYC
New York — St Louis
United States → United States
STL
from
79 €

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

We gathered interesting facts about the flight for you

Cheapest flight

UA 4539

167 €

Fastest flight

UA 4576

1h 29min

Average time

1h 30min

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
52 €
American Airlines
American Airlines
Tue, Thu, Fri, Sat
Price from
52 €
Frontier Airlines
Frontier Airlines
Mon, Wed, Fri, Sat, Sun
Price from
62 €
Allegiant Air
Allegiant Air
Sun
Price from
125 €
Contour Airlines
Contour Airlines
Thu
Price from
185 €

Internet abroad

eSIM · United States

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3 GB

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30

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€8

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2 GB

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15

days

€11

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5 GB

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30

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€12

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3 GB

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30

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€14

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5 GB

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30

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€20

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Frequently Asked Questions

The cheapest United Airlines ticket Chicago – St Louis costs €167, flight UA4539, departing at 01:51.
The fastest United Airlines flight Chicago – St Louis takes 1h 29min, flight UA4576, departing at 02:30.
The earliest United Airlines flight Chicago – St Louis(UA4576)departs at 02:30.