US$49 Cheap Flights from St. Louis to Chicago 2024 (STL-CHI)

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Find cheap one-way flights from St. Louis to Chicago starting at US$49.

Discover our range of affordable one-way and round-trip flights from St. Louis to Chicago and kick-start your next adventure today!

One way
Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

When is the cheapest time to book flights from St. Louis to Chicago?

Price trend charts are a great way of tracking how much your flights cost in the lead up to departure and can help you choose when to book your tickets. See how prices to Chicago from St. Louis have changed and are set to move below.

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Cheapest airlines flights from St. Louis to Chicago

We have a range of prices from different airlines providing flights from St. Louis to Chicago. Check below for the journey which best suits your travel needs.

Southern Airways Express

From US$49

American Airlines

From US$50

United Airlines

From US$72

Southwest Airlines

From US$77

Delta Air Lines

From US$79

Frontier Airlines

From US$162

Find more flights and airlines

Find cheap flights from St. Louis to Chicago by different airports

There are various non-direct routes from St. Louis to Chicago which could be cheaper and faster! Check out these alternative options to see if they could work for your trip.

Cheapest
STL
12:15
3h 35m
1 transfer
ORD
15:50
St. Louis Lambert International Airport - O'Hare International Airport
Fri, Jan 10Southern Airways Express
US$49
STL
14:50
1h 10m
Nonstop
MDW
16:00
St. Louis Lambert International Airport - Midway International Airport
Tue, Jan 14Southwest Airlines
US$77
STL
14:50
1h 10m
Nonstop
MDW
16:00
St. Louis Lambert International Airport - Midway International Airport
Tue, Jan 14Southwest Airlines
US$77
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Frequently Asked Questions

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 $220.
How long does it take to fly from St. Louis (STL) to Chicago (CHI) and what is the distance?
It takes around 1 hour 23 minutes to fly from St. Louis (STL) to Chicago (CHI).
What is the transportation method from the main airport to downtown in Chicago?
- The distance from O'Hare International Airport to downtown is about 25 km. It takes about 40 minutes by taxi.
- The distance from Midway International Airport to downtown is about 14 km. It takes about 30 minutes by taxi.
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): American Airlines, Royal Jordanian, Southwest Airlines, All Nippon Airways, British Airways, United Airlines, Turkish Airlines, Air Canada and Air New Zealand.

How to find a cheap flight from St. Louis to Chicago

If you leave it until the last minute and forget to check some of the key information when booking tickets, prices can often end up skyrocketing. Below, you can find our top tips for getting the best value flights – from changing dates to chasing deals, there are plenty ways to keep your next trip affordable.

Book Early

Once prices are gone, they're gone. Lock in deals while you can!

Compare Flight Prices

Compare prices on travel agency and airline websites.

Look Out for Deals

Check airline and travel agency websites for latest flight deals

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.

Use the Trip.com App

Save up to £10 per person when booking your flights on Trip.com

St. Louis to Chicago Flight Information

Cheapest nonstop flight price	$49
Cheapest round-trip ticket price	$98
Off-season for travel	November
Peak season for travel	March
Flight distance	421.66 km
Average flight time	1 hour 23 minutes
Popular airline	Southern Airways Express