Cheap flight from St. Louis to Chicago from $45
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Flights from St. Louis to Chicago
Cheap flight deals from St. Louis to Chicago
We've found these cheap flights for you. You can book one-way or round-trip flight tickets.
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Round-trip
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One way
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Cheapest nonstop
STL 5:00 AM1h 19mNonstopORD 6:19 AMSt. Louis - Chicago | Wed, May 28 | American Airlines
ORD 8:29 AM1h 20mNonstopSTL 9:49 AMChicago - St. Louis | Wed, Jun 4 | American Airlines$89 $14739% OFF39% OFF$147 $89 -
STL 5:00 AM1h 19mNonstopORD 6:19 AMSt. Louis - Chicago | Thu, May 29 | American Airlines
ORD 7:03 PM1h 27mNonstopSTL 8:30 PMChicago - St. Louis | Thu, Jun 5 | American Airlines$101 $14732% OFF32% OFF$147 $101
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STL 5:00 AM1h 19mNonstopORD 6:19 AMSt. Louis - Chicago | Thu, May 15 | American Airlines
ORD 10:30 PM1h 21mNonstopSTL 11:51 PMChicago - St. Louis | Mon, May 19 | American Airlines$102 $14731% OFF31% OFF$147 $102
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STL 6:00 AM1h 19mNonstopORD 7:19 AMSt. Louis - Chicago | Tue, May 20 | American Airlines
ORD 10:30 PM1h 21mNonstopSTL 11:51 PMChicago - St. Louis | Thu, May 22 | American Airlines$10528% OFF$147 $105
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STL 6:00 AM1h 21mNonstopORD 7:21 AMSt. Louis - Chicago | Sat, Jun 21 | American Airlines
ORD 10:38 PM1h 16mNonstopSTL 11:54 PMChicago - St. Louis | Sat, Jun 28 | American Airlines$10727% OFF$147 $107
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STL 7:10 AM1h 5mNonstopMDW 8:15 AMSt. Louis - Chicago | Wed, May 28 | Southwest Airlines
MDW 5:40 PM1h 15mNonstopSTL 6:55 PMChicago - St. Louis | Wed, Jun 4 | Southwest Airlines$10826% OFF$147 $108 -
STL 5:00 AM1h 19mNonstopORD 6:19 AMSt. Louis - Chicago | Tue, May 13 | American Airlines
ORD 8:25 PM1h 27mNonstopSTL 9:52 PMChicago - St. Louis | Fri, May 16 | American Airlines$10926% OFF$147 $109
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STL 7:10 AM1h 5mNonstopMDW 8:15 AMSt. Louis - Chicago | Tue, May 20 | Southwest Airlines
MDW 8:55 PM1h 15mNonstopSTL 10:10 PMChicago - St. Louis | Tue, May 27 | Southwest Airlines$11025% OFF$147 $110
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STL 5:35 AM1h 10mNonstopMDW 6:45 AMSt. Louis - Chicago | Thu, May 15 | Southwest Airlines
MDW 8:45 PM1h 15mNonstopSTL 10:00 PMChicago - St. Louis | Thu, May 22 | Southwest Airlines$11025% OFF$147 $110
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STL 8:10 AM1h 25mNonstopORD 9:35 AMSt. Louis - Chicago | Thu, Jun 12 | United Airlines
ORD 7:03 PM1h 27mNonstopSTL 8:30 PMChicago - St. Louis | Thu, Jun 12 | American Airlines$11323% OFF$147 $113 -
STL 1:00 PM17h 25m1 stopsCHI Invalid DateSt. Louis - Chicago | Mon, May 12 | Normal Airline
CHI 3:00 PM6hNonstopSTL 4:00 PMChicago - St. Louis | Wed, May 14 | Normal AirlineFind More FlightsFind More Flights
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Cheapest nonstop
STL 5:00 AM1h 19mNonstopORD 6:19 AMSt. Louis - Chicago | Wed, Jun 4 | American Airlines$45 $24081% OFF81% OFF$240 $45
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STL 5:00 AM1h 19mNonstopORD 6:19 AMSt. Louis - Chicago | Tue, Jun 3 | American Airlines$47 $24080% OFF80% OFF$240 $47
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STL 6:00 AM1h 21mNonstopORD 7:21 AMSt. Louis - Chicago | Thu, Jun 26 | American Airlines$48 $24080% OFF80% OFF$240 $48
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STL 6:00 AM1h 21mNonstopORD 7:21 AMSt. Louis - Chicago | Wed, Jun 11 | American Airlines$4980% OFF$240 $49
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STL 7:30 PM1h 20mNonstopORD 8:50 PMSt. Louis - Chicago | Tue, May 20 | American Airlines$5079% OFF$240 $50
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STL 6:03 AM1h 22mNonstopORD 7:25 AMSt. Louis - Chicago | Wed, Jun 25 | American Airlines$5079% OFF$240 $50
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STL 5:00 AM1h 19mNonstopORD 6:19 AMSt. Louis - Chicago | Tue, May 13 | American Airlines$5279% OFF$240 $52
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STL 5:00 AM1h 19mNonstopORD 6:19 AMSt. Louis - Chicago | Thu, May 15 | American Airlines$5279% OFF$240 $52
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STL 8:05 PM1h 5mNonstopMDW 9:10 PMSt. Louis - Chicago | Tue, Jun 3 | Southwest Airlines$5378% OFF$240 $53
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STL 5:00 AM1h 19mNonstopORD 6:19 AMSt. Louis - Chicago | Wed, May 21 | American Airlines$18523% OFF$240 $185
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STL 1:00 PM17h 25m1 stopsCHI Invalid DateSt. Louis - Chicago | Mon, May 12 | Normal AirlineFind More FlightsFind More Flights
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
When is the cheapest time to fly from St. Louis to Chicago?
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Find cheap airlines flights from St. Louis to Chicago
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Frequently Asked Questions
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When are flight tickets from St. Louis (STL) to Chicago (CHI) the cheapest?
Airlines adjust prices for flights from St. Louis to Chicago based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays. -
How much do flights from St. Louis (STL) to Chicago (CHI) cost?
According to Trip.com's data, the lowest price is around $290. -
How long does it take to fly from St. Louis (STL) to Chicago (CHI) and what is the distance?
It takes around 1 hour 21 minutes to fly from St. Louis (STL) to Chicago (CHI). -
What are the most popular airlines that fly from St. Louis (STL) to Chicago (CHI)?
Airlines with flights from St. Louis (STL) to Chicago (CHI): Southwest Airlines, All Nippon Airways, British Airways, Turkish Airlines, Air Canada, Air New Zealand, United Airlines, American Airlines and Finnair.
How to find a cheap flight from St. Louis to Chicago
Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from St. Louis to Chicago. Book your flights at the right time and save more.
Book Early
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Compare Flight Prices
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Look Out for Deals
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Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
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Flight Info | St. Louis to Chicago
| Cheapest one-way flight price | $44 |
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| Cheapest round-trip ticket price | $88 |
| Off-season for travel | April |
| Peak season for travel | February |
| Flight distance | 421.66 km |
| Average flight time | 1 hour 21 minutes |
| Popular airline | American Airlines |