$55 Cheap Flights from St. Louis to Chicago (STL to CHI)

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Cheap flight deals from St. Louis to Chicago Starting at $55

For as little as $55, you can take your next adventure to Chicago without breaking the bank. Choose between one-way and return tickets from St. Louis below.

One way
Round-trip

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

St. Louis to Chicago flight time & flight schedules

Flight info.

Departure

Arrival

Weekly Schedule

WN3109

Southwest Airlines

02:50 pm

STL

1.2h

Nonstop

04:00 pm

MDW

SMTWT--

UA1156

United Airlines

05:18 pm

STL

1.3h

Nonstop

06:34 pm

ORD

SMTWTFS

AA629

American Airlines

06:06 am

STL

1.3h

Nonstop

07:25 am

ORD

SMTWTFS

UA4428

United Airlines

06:45 am

STL

1.3h

Nonstop

08:05 am

ORD

SMTWTFS

AA4135

American Airlines

07:35 am

STL

1.3h

Nonstop

08:55 am

ORD

-----F-

UA4426

United Airlines

10:30 am

STL

1.5h

Nonstop

11:58 am

ORD

SMTWTFS

AA4595

American Airlines

11:55 am

STL

1.4h

Nonstop

01:17 pm

ORD

-----F-

F94567

Frontier Airlines

12:37 pm

STL

2.6h

02:11 pm

DEN

S-T-TF-

F93172

Frontier Airlines

08:15 pm

DEN

2.4h

11:40 pm

ORD

S--WT-S

9X447

Southern Airways Express

12:50 pm

STL

1.3h

02:05 pm

BRL

SMTWTFS

9X444

Southern Airways Express

02:10 pm

BRL

1.7h

03:50 pm

ORD

SMTWTFS

Find more flights and airlines

When is the cheapest time to fly 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.

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 $222.
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): Royal Jordanian, Qatar Airways, Southwest Airlines, American Airlines, All Nippon Airways, British Airways, Turkish Airlines, Air Canada, Air New Zealand, United Airlines and GoJet Airlines.

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

Flight Info | St. Louis to Chicago

Cheapest nonstop flight price	$54
Cheapest round-trip ticket price	$87
Off-season for travel	November
Peak season for travel	October
Flight distance	421.66 km
Average flight time	1 hour 23 minutes
Popular airline	Southern Airways Express