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

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The best prices from St Louis to Chicago are usually found in July or April, booked 55 days in advance, depart on a Monday or Wednesday and return on a Saturday

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

STL - CHI
Price
$191 - $284
CHI
Temperature
33.8 - 84.2 °F
CHI
Rainfall
0.7 - 4.3 inches

Popular in

December

High demand for flights, 17% potential price rise

Cheapest in

July

Best time to find cheap flights, 19% potential price drop

Round-trip from

$191

From St Louis to Chicago

One-way from

$129

One-way flight from St Louis to Chicago

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from St Louis to Chicago?

Flying to your destination on a Saturday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Chicago. Check prices with Cheapflights to find a great deal for your trip.

How far in advance should I book a flight from St Louis to Chicago?

Travelers have found it’s best to book a flight 37 days in advance to save up to 10% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 37 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from St Louis to Chicago 1-2 weeks in advance for as low as $177, or $177 for flights within the next 24 hours.

When is the cheapest time to fly from St Louis to Chicago (STL - CHI)?

It’s typically best to fly out from St Louis to Chicago at noon. Doing so could potentially save you 8% on the flight price compared to flying in the afternoon, which is usually more expensive.

Cheap flights from St Louis to Chicago in September, October 2020

The best prices found for STL to CHI flights for September, October
27 Oct - 3 Nov
$77pp
STL
Lambert-St Louis
Multiple Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
STL
Lambert-St Louis
23 Oct - 26 Oct
$87pp
STL
Lambert-St Louis
Multiple Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
STL
Lambert-St Louis
20 Oct - 27 Oct
$90pp
STL
Lambert-St Louis
Multiple Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
American Airlines
 
1 STOP
STL
Lambert-St Louis

St Louis to Chicago 2020 flight deals

Cheap flights to Chicago from St Louis found for this year
27 Oct - 3 Nov
$77pp
STL
Lambert-St Louis
Multiple Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
STL
Lambert-St Louis
23 Oct - 26 Oct
$87pp
STL
Lambert-St Louis
Multiple Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
STL
Lambert-St Louis
20 Oct - 27 Oct
$90pp
STL
Lambert-St Louis
Multiple Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
American Airlines
 
1 STOP
STL
Lambert-St Louis

Non-stop flights to Chicago from St Louis

Save time with St Louis to Chicago direct flight deals
27 Oct - 3 Nov
$77pp
STL
Lambert-St Louis
Multiple Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
STL
Lambert-St Louis
23 Oct - 26 Oct
$87pp
STL
Lambert-St Louis
Multiple Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
STL
Lambert-St Louis
29 Dec - 31 Dec
$97pp
STL
Lambert-St Louis
Multiple Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
STL
Lambert-St Louis

Last minute flights from St Louis to Chicago

Late deals on round-trip flights to Chicago from St Louis, departing today and this week
10 Oct - 11 Oct
$118pp
STL
Lambert-St Louis
Delta
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Delta
 
1 STOP
STL
Lambert-St Louis
10 Oct - 11 Oct
$122pp
STL
Lambert-St Louis
Delta
 
1 STOP
MDW
Chicago Midway
MDW
Chicago Midway
Delta
 
1 STOP
STL
Lambert-St Louis
6 Oct - 8 Oct
$146pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Air Choice One
 
1 STOP
STL
Lambert-St Louis

One-way flights to Chicago from St Louis

The cheapest one-way flights from St Louis to Chicago
9:17 am - 12:11 pm
Cape Air
1 Stop
2h 54m
STL - ORD
Cape Air
$129
FareScan
2:15 pm - 1:35 pm
Air Choice One
2 Stops
23h 20m
STL - ORD
Air Choice One
$142
Kiwi.com
2:00 am - 12:25 pm
Delta
2 Stops
10h 25m
STL - ORD
Delta
$184
Delta

Related info for your journey

Useful info, stats and facts about St Louis to Chicago flights.

Flight FAQs

From St Louis to Chicago

Are flight prices decreasing from St Louis to Chicago due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both St Louis and Chicago for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Can I find flights from St Louis to Chicago for under $100 on Cheapflights?

Yes, there are multiple flights from St Louis to Chicago for under $100. The cheapest flight booked recently is on Multiple Airlines for just $77, but on average you can expect to pay $109.

Are there nonstop flights from St Louis to Chicago for under $100 on Cheapflights?

Cheapflights has at least 15 direct flights from St Louis to Chicago under $100. A good price for a nonstop flight from St Louis to Chicago is less than $1,139.

Are there last-minute flights available from St Louis to Chicago for under $200?

There are currently 20+ open flights from St Louis to Chicago within the next 7 days for less than $200.

What days are nonstop flights available from St Louis to Chicago?

You can find nonstop flights on the following days: Sunday, Monday, Wednesday, Thursday, Friday, Saturday.

How many flights depart from St Louis to Chicago on average per day?

Travelers can expect 13 flights from Lambert-St Louis to Chicago on average per day.
Early Morning (Midnight to 6am) - 38% of flight departures
Morning (6am - Noon) - 46% of flight departures
Afternoon (Noon - 6pm) - 15% of flight departures

Is St Louis weather warmer or cooler than Chicago?

Temperatures around the 90 °F's can be experienced in July. The weather in Chicago is colder than in St Louis. Plan for potential changes in flight availability as peak weather approaches in this location.

How long is the flight from St Louis to Chicago?

Departing from St Louis to Chicago will take you 1h 57m. The distance between St Louis and Chicago is about 259 mi. Both multi-stop and nonstop flights can be found to your destination and back.

What are the cheapest airlines flying from St Louis to Chicago round-trip?

Cheapflights users have booked flights from St Louis to Chicago round-trip from $98. Another airline that can offer you cheap pricing is Air Choice One. Delta is 58% cheaper than the average price of flights available within the next 90 days to this destination.

What are the cheapest airlines to fly from St Louis to Chicago one-way?

To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $59. Air Choice One flights start at $79 while deals on Cape Air start at $129 one-way.

Alternative routes for St Louis to Chicago

Destination information for Chicago

Things to know before you go. Useful info for your trip from St Louis to Chicago
Flight duration
1h 19m
Average temperature for September in Chicago
77.0 °F
Avg rainfall for September in Chicago
2.4 ″

Airports servicing St. Louis

Airports servicing Chicago

Chicago Midway (MDW)
Rockford (RFD)

Hourly flight availability from St Louis to Chicago

Morning 6 AM to noon 56% of STL to CHI departures
Afternoon Noon to 6 PM 26% of STL to CHI departures
Early morning Midnight to 6 AM 15% of STL to CHI departures
Evening 6 PM to midnight 3% of STL to CHI departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from St Louis to Chicago
Sunday
27 daily flights
Monday
30 daily flights
Tuesday
27 daily flights
Wednesday
32 daily flights
Thursday
29 daily flights
Friday
31 daily flights
Saturday
26 daily flights
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