Cheap flights Chicago to St Louis (Lambert-St. Louis)

From

To

Depart

Return

Passengers

1 passenger, economy

Cheap flights Chicago to St Louis

Compare prices, duration and stops

Filters

Stops

Direct only 1 stop

Price

51 € 189 € 189 €

Airlines

Allegiant Air American Airlines Contour Airlines Frontier Airlines Southwest Airlines United Airlines

AA 3069

04:05

Chicago, O'Hare International Airport (ORD)

Fri, 18 sep

1h 22min

Direct

05:27

St Louis, Lambert-St. Louis (STL)

Fri, 18 sep

142 €

F9 2292

11:25

Chicago, Chicago Midway International Airport (MDW)

Fri, 18 sep

6h 45min

1 stop

18:10

St Louis, Lambert-St. Louis (STL)

Fri, 18 sep

125 €

F9 1483

11:30

Chicago, O'Hare International Airport (ORD)

Sat, 19 sep

12h 47min

1 stop

00:17

St Louis, Lambert-St. Louis (STL)

Sun, 20 sep +1

129 €

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

83 €

F9 2292

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

62 €

AA 3069

04:05

Chicago, O'Hare International Airport (ORD)

Tue, 22 sep

1h 22min

Direct

05:27

St Louis, Lambert-St. Louis (STL)

Tue, 22 sep

140 €

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 €

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

64 €

AA 2818

13:55

Chicago, O'Hare International Airport (ORD)

Thu, 24 sep

1h 23min

Direct

15:18

St Louis, Lambert-St. Louis (STL)

Thu, 24 sep

149 €

LF 3046

17:30

Chicago, O'Hare International Airport (ORD)

Thu, 24 sep

24h 51min

3 stops

18:21

St Louis, Lambert-St. Louis (STL)

Fri, 25 sep +1

186 €

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

95 €

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

125 €

G4 341

20:53

Chicago, Chicago Rockford International Airport (RFD)

Sun, 27 sep

21h 28min

2 stops

18:21

St Louis, Lambert-St. Louis (STL)

Mon, 28 sep +1

126 €

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

83 €

WN 3877 Best price

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

51 €

AA 2818

13:55

Chicago, O'Hare International Airport (ORD)

Fri, 2 oct

1h 23min

Direct

15:18

St Louis, Lambert-St. Louis (STL)

Fri, 2 oct

77 €

AA 2818

13:50

Chicago, O'Hare International Airport (ORD)

Sat, 3 oct

1h 23min

Direct

15:13

St Louis, Lambert-St. Louis (STL)

Sat, 3 oct

52 €

G4 344

18:56

Chicago, Chicago Rockford International Airport (RFD)

Sun, 4 oct

23h 25min

2 stops

18:21

St Louis, Lambert-St. Louis (STL)

Mon, 5 oct +1

136 €

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

118 €

AA 2208

14:30

Chicago, O'Hare International Airport (ORD)

Thu, 29 oct

1h 21min

Direct

15:51

St Louis, Lambert-St. Louis (STL)

Thu, 29 oct

79 €

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

115 €

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

108 €

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

117 €

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

98 €

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

74 €

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

115 €

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

52 €

Low price calendar

September 2026

Price chart (September 2026)

min: 51 € · max: 149 €

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142 €

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125 €

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129 €

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83 €

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62 €

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140 €

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64 €

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149 €

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95 €

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126 €

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83 €

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Good deal

51 €

Cheap flights Chicago to St Louis

Southwest Airlines

Mon, Wed, Thu, Fri, Sat

Price from

€52

American Airlines

Tue, Thu, Fri, Sat

Price from

€52

Frontier Airlines

Mon, Wed, Fri, Sat, Sun

Price from

€62

Allegiant Air

Sun

Price from

€126

Contour Airlines

Thu

Price from

€186

United Airlines

Tue

Price from

€189

Popular destinations from Chicago

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Chicago — Denver

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Chicago — Miami

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Popular destinations to St Louis

All →

DEN

Denver — St Louis

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from

€34

MSP

Minneapolis — St Louis

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from

€43

MIA

Miami — St Louis

United States → United States

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from

€59

BNA

Nashville — St Louis

United States → United States

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from

€62

HOU

Houston — St Louis

United States → United States

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from

€67

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

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from

€79

Cheap flights Chicago to St Louis

Interesting facts about the route

Flight time

1h 31min

Distance

415 km

Average price

€115

Most frequent flight

F9 1596

Passenger reviews

No reviews for this route yet

Internet abroad

eSIM · United States

change

3 GB

data

30

days

€8

change

2 GB

data

15

days

€11

change

5 GB

data

30

days

€12

change

3 GB

data

30

days

€14

change

5 GB

data

30

days

€19

Frequently Asked Questions

The average ticket price Chicago St Louis is €115. The cheapest ticket costs €125, operated by Frontier Airlines, flight 2292, departing Chicago on 18 September at 11:25, arriving St Louis on 18 September at 18:10.

The average flight time is 6 hours 45 minutes. The fastest flight takes 1 hour 22 minutes, flight 3069 operated by American Airlines, departing Chicago on 18 September at 04:05, arriving St Louis on 18 September at 05:27.

Flights on the Chicago - St Louis route are operated by the following airlines: American Airlines, Frontier Airlines, Allegiant Air, Contour Airlines, United Airlines, Southwest Airlines.

The distance from Chicago to St Louis is 415 km.