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Cheap flights from St Louis (STL) to Chicago (CHI)

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1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from St Louis (STL) to Chicago (CHI)

How to find the cheapest flight from St Louis (STL) to Chicago (CHI)
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How to find the cheapest flight from St Louis (STL) to Chicago (CHI)
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How to find the cheapest flight from St Louis (STL) to Chicago (CHI)
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Cheap flights from St Louis to Chicago in April , May 2026

30 Apr - 06 May $ 224.00
STL
St Louis
United Airlines
DIRECT
CHI
Chicago
CHI
Chicago
United Airlines
DIRECT
STL
St Louis
Pick dates
11 Apr - 05 May $ 833.00
STL
St Louis
Alaska Airlines
1 STOPS
CHI
Chicago
CHI
Chicago
Alaska Airlines
2 STOPS
STL
St Louis
Pick dates
11 Apr - 02 May $ 846.00
STL
St Louis
Alaska Airlines
1 STOPS
CHI
Chicago
CHI
Chicago
Alaska Airlines
1 STOPS
STL
St Louis
Pick dates

Last minute flights from St Louis to Chicago

29 Apr - 30 Apr $ 224.00
STL
St Louis
United Airlines
DIRECT
CHI
Chicago
CHI
Chicago
United Airlines
DIRECT
STL
St Louis
Pick dates
10 Apr - 30 Apr $ 456.00
STL
St Louis
United Airlines
DIRECT
CHI
Chicago
CHI
Chicago
United Airlines
DIRECT
STL
St Louis
Pick dates
10 Apr - 30 Apr $ 456.00
STL
St Louis
United Airlines
DIRECT
CHI
Chicago
CHI
Chicago
United Airlines
DIRECT
STL
St Louis
Pick dates

One-way flights to Chicago from St Louis

7:45 AM - 7:45 AM
United Airlines
0 Stops
1h 26m
STL - CHI
$ 59
Kiwi
Pick dates
7:45 AM - 7:45 AM
United Airlines
0 Stops
1h 26m
STL - CHI
$ 324
Kiwi
Pick dates
6:30 AM - 6:30 AM
United Airlines
0 Stops
1h 29m
STL - CHI
$ 324
Kiwi
Pick dates

How to find the cheapest flight from St Louis (STL) to Chicago (CHI)

Related info for your journey
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How to find the cheapest flight from St Louis (STL) to Chicago (CHI)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from St Louis (STL) to Chicago (CHI)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.