Cheap flights from Chicago to St. Louis

Round-trip
Economy
Chicago (CHI)
St. Louis (STL)
Sun 10/25
Sun 11/1
Any month
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Flight information for Chicago to St. Louis
(CHI to STL)

Find info about flight duration, direct flights, and airports for your flight from Chicago to St. Louis
Best Price Found $77 The best flight deal from Chicago to St. Louis found on momondo in the last 72 hours is $77
Fastest flight time 1h 20m The fastest flight from Chicago to St. Louis takes 1h 20m.
Direct flights Mo, Tu and We Direct flights go from Chicago to St. Louis on Monday, Tuesday and Wednesday. Airlines offering direct flights are: ANA and Air Canada..
Airports in St. Louis 1 airport There is 1 airport near St. Louis: Lambert-St Louis (STL)

How to get the cheapest flight ticket from Chicago to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to St. Louis?
February
The cheapest time of year to fly to St. Louis from Chicago is February. Most expensive is January
What is the cheapest day to fly to St. Louis?
Saturday
The cheapest day of the week is typically Saturday. The most expensive is typically Monday
When is the cheapest time to fly to St. Louis?
at noon
Chicago to St. Louis flights are approximately 15% more expensive in the afternoon than at noon
What is the cheapest airline that flies to St. Louis?
Cape Air
Cape Air, Air Choice One, and Major Airline are the most popular carriers operating from Chicago to St. Louis
What is the cheapest route?
Chicago O'Hare Intl - Lambert-St Louis
Fly from Chicago O'Hare Intl to Lambert-St Louis for the best Chicago - St. Louis flight prices
When is the cheapest time to book a flight to St. Louis?
48 days before
The cheapest time to buy a flight from Chicago to St. Louis is approximately 48 days to departure
60
Days before departure
0

Easily compare round-trip flights from Chicago to St. Louis

Below you can see the best fares for your round-trip flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Chicago to St. Louis by changing tabs
Cheapest
Best
Quickest
Multiple Airlines
Oct 17
ORD
Chicago O'Hare Intl
1h 19m
STL
Lambert-St Louis
Oct 19
STL
Lambert-St Louis
1h 24m
ORD
Chicago O'Hare Intl
Delta
Oct 30
MDW
Chicago Midway
4h 08m
1 stop
STL
Lambert-St Louis
Nov 1
STL
Lambert-St Louis
8h 00m
1 stop
MDW
Chicago Midway
Air Choice One
Oct 3
ORD
Chicago O'Hare Intl
7h 40m
1 stop
STL
Lambert-St Louis
Oct 5
STL
Lambert-St Louis
10h 40m
1 stop
ORD
Chicago O'Hare Intl

Find the cheapest one-way flights from Chicago to St. Louis

If you're looking for one-way flights from Chicago to St. Louis, view some of our deals below provided by Delta
Cheapest
Best
Quickest
Delta
Oct 21
ORD
Chicago O'Hare Intl
4h 26m
1 stop
STL
Lambert-St Louis
Multiple Airlines
Oct 21
ORD
Chicago O'Hare Intl
20h 25m
2 stops
STL
Lambert-St Louis
Air Choice One
Oct 24
ORD
Chicago O'Hare Intl
7h 40m
1 stop
STL
Lambert-St Louis

Alternative routes for Chicago to St. Louis

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Chicago to Kansas City Flights
Fastest flight time
3h 59m
Cheapest price
$77

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