Cheap flights from Chicago to St. Louis

Round-trip
1 adult
Economy
From?
To?
Mon 6/28
Mon 7/5

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$111The best flight deal from Chicago to St. Louis found on momondo in the last 72 hours is $111
Fastest flight time1h 09mThe fastest flight from Chicago to St. Louis takes 1h 09m
Direct flightsThu, Fri, Sat and SunDirect flights go from Chicago to St. Louis on Thursday, Friday, Saturday and Sunday. The only airline offering direct flights is American Airlines.
Airports in St. Louis1 airportThere 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 from Chicago to St. Louis?

July

The cheapest time of year to fly to St. Louis from Chicago is July. Most expensive is March

What is the cheapest day to depart Chicago for 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 from Chicago to St. Louis?

at noon

Chicago to St. Louis flights are approximately 19% more expensive in the afternoon than at noon

What is the cheapest airline that flies to St. Louis from Chicago?

Cape Air

American Airlines, Cape Air, and Delta are the most popular carriers operating from Chicago to St. Louis

What is the cheapest Chicago to St. Louis flight 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

How far in advance should you book Chicago to St. Louis flights?

47 days before

The cheapest time to buy a flight from Chicago to St. Louis is approximately 47 days to departure


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
Delta
MDWChicago Midway
1h 57m
STLLambert-St Louis

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
Delta
MDWChicago Midway
1h 57m
STLLambert-St Louis

Best airlines flying from Chicago to St. Louis

Compare and see reviews for airlines that fly from Chicago to St. Louis with momondo
AirlineRatingFree CancellationPrice
Cape Air
PriceFrom $78
Free Cancellation
Rating
10.0
10.0

Boarding

10.0

Comfort

10.0

Crew

10.0

Entertainment

10.0

Food

Reviews

Pros: Chance to see the coast and internal from above

1 / 1
United Airlines
PriceFrom $145
Free Cancellation
Rating
6.8
7.2

Boarding

6.6

Comfort

7.5

Crew

6.6

Entertainment

6.1

Food

Reviews

Pros: Everything! From ticketing agent to all the crew on our flight back were awesome. Thank you!

1 / 10
American Airlines
PriceFrom $145
Free Cancellation
Rating
7.2
7.4

Boarding

7.1

Comfort

7.9

Crew

7.0

Entertainment

6.8

Food

Reviews

Pros: Delayed flight no reasons seems like American Airlines don’t know what to do in these situations

Cons: I believe this airlines should have figured the answer to this question by now.

1 / 10
Delta
PriceFrom $200
Free Cancellation
Rating
8.1
8.3

Boarding

8.4

Comfort

8.3

Crew

7.9

Entertainment

8.1

Food

Reviews

Cons: Wouldn't let us on the flight when there was plenty of time to get there. Manager was arrogant and slow - didn't care. Poor policies at that airport.

1 / 10

  • Are airlines flying from Chicago to Lambert-St Louis offering flexible cancellation due to COVID-19?

    Due to the global impact of COVID-19, some of our airline partners operating flights from Chicago to Lambert-St Louis, such as American Airlines, United Airlines, and Cape Air may have put in place flexible cancellation policies. Use our site to search for all of the airlines offering this flexibility to you.


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 time1h 29m
Cheapest price$156
St. Louis to Kansas City Flights
Fastest flight time9h 41m
Cheapest price$181