Cheap Flight Deals from St. Louis to Chicago

We've found these cheap flights for you. You can book one-way or return flight tickets.

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

Best Time to Book Flights from St. Louis to Chicago

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Cheapest flights

From price

Apr

30 6
6 13
13 20
20 27
May

27 4
4 11
11 18
18 25
Jun

25 1
1 8
8 15
15 22

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

FAQ

When are flight from St. Louis (STL) to Chicago (CHI) the cheapest?

Airlines adjust prices for flights from St. Louis to Chicago based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much are flights from St. Louis (STL) to Chicago (CHI) cost?

According to Trip.com's data, the lowest price is around AU$ 455.
How long is the flights from St. Louis (STL) to Chicago (CHI)?

It takes about 1 hour 56 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 25km, by taxi about 40 minutes.
- The distance from Midway International Airport to downtown is about 14km, by taxi about 30 minutes.
What time does the earliest flight from St. Louis to Chicago depart?

The earliest flight departs from St. Louis (STL) at 05:55 and arrives in Chicago (ORD) at 07:15.
What time does the latest flight from St. Louis to Chicago depart?

The latest flight departs from St. Louis (STL) at 18:29 and arrives in Chicago (ORD) at 19:50.
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, United Airlines, American Airlines, Alaska Airlines, Iberia, All Nippon Airways, British Airways, Turkish Airlines, Air Canada and Air New Zealand.
What's the most popular airline for direct flights from St. Louis (STL) to Chicago (CHI)?

Southwest Airlines operates 2 direct flights from St. Louis (STL) to Chicago (CHI).
How many airports in Chicago (CHI)?

There are 3 airport(s) in Chicago (CHI): Midway International Airport, O'Hare International Airport and Chicago Rockford International Airport.

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.

Use the Trip.com App

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Flight Information from St. Louis to Chicago

Cheapest one-way flight price	AU$ 56
Cheapest return ticket price	AU$ 142
Off-season for travel	April
Peak season for travel	June
Flight distance	421.66km
Average flight time	1 hour 56 minutes
Popular airline	Southern Airways Express