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Chicago To St Louis Flights

  • One-Way
  • Round-Trip
  • Multi-City

From

Indira Gandhi International Airport

To

Chhatrapati Shivaji International Airport

DEPARTURE DATE

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Friday

Return Date

Book a round trip
to save more

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TRAVELLER & CLASS

1 Traveller(s)

Economy

June
August
September
October
November
December
January
February
March
April

May is by far the best month, wherein you can get cheapest flights for Chicago to St Louis. Meanwhile, June is perceived as the expensive month due to the varying factors. That’s why it’s highly advised to make advanced online flight booking to save huge amounts of money.

Things to know
arrow One Way Fare
May

May- During this month the footfall is less so, the flight is gradually inexpensive.

round Round Trip Fare
May

May - is the cheapest month to book round trip flights.

Cheaper Fare
£ 141

Cheapest Fare- Currently, this is the fare price based on the current demand.

disclDisclaimer - All the above-mentioned fares were found within last 48 hrs. The displayed fares are based on historical data and are subject to change. The fares cannot be guaranteed at the time of booking.

Best Flight From Chicago To St Louis

Cheapest
Southern Airways Express
Southern Airways Express

ORD

08:15

Chicago

Chicago O Hare International Airport

Thu , 03 Jul 2025

03h 55m
ellipse
1 Stop

STL

12:10

St Louis

St Louis Lambert International Airport

Thu, 03 Jul 2025

£75
Southern Airways Express
Southern Airways Express

ORD

13:10

Chicago

Chicago O Hare International Airport

Thu , 03 Jul 2025

03h 35m
ellipse
1 Stop

STL

16:45

St Louis

St Louis Lambert International Airport

Thu, 03 Jul 2025

£89
American Airlines
American Airlines

ORD

19:03

Chicago

Chicago O Hare International Airport

Thu , 03 Jul 2025

01h 27m
ellipse
Non Stop

STL

20:30

St Louis

St Louis Lambert International Airport

Thu, 03 Jul 2025

£132
United Airlines
United Airlines

ORD

21:20

Chicago

Chicago O Hare International Airport

Thu , 03 Jul 2025

01h 25m
ellipse
Non Stop

STL

22:45

St Louis

St Louis Lambert International Airport

Thu, 03 Jul 2025

£132
Delta Airlines
Delta Airlines

ORD

14:00

Chicago

Chicago O Hare International Airport

Thu , 03 Jul 2025

06h 30m
ellipse
1 Stop

STL

20:30

St Louis

St Louis Lambert International Airport

Thu, 03 Jul 2025

£169
United Airlines
United Airlines

ORD

16:47

Chicago

Chicago O Hare International Airport

Thu , 03 Jul 2025

01h 20m
ellipse
Non Stop

STL

18:07

St Louis

St Louis Lambert International Airport

Thu, 03 Jul 2025

£207
Southern Airways Express
Southern Airways Express

ORD

13:10

Chicago

Chicago O Hare International Airport

Wed , 09 Jul 2025

03h 35m
ellipse
1 Stop

STL

16:45

St Louis

St Louis Lambert International Airport

Wed, 09 Jul 2025

£75
Delta Airlines
Delta Airlines

ORD

11:20

Chicago

Chicago O Hare International Airport

Wed , 09 Jul 2025

04h 58m
ellipse
1 Stop

STL

16:18

St Louis

St Louis Lambert International Airport

Wed, 09 Jul 2025

£97
American Airlines
American Airlines

ORD

22:36

Chicago

Chicago O Hare International Airport

Wed , 09 Jul 2025

01h 15m
ellipse
Non Stop

STL

23:51

St Louis

St Louis Lambert International Airport

Wed, 09 Jul 2025

£112
United Airlines
United Airlines

ORD

14:23

Chicago

Chicago O Hare International Airport

Wed , 09 Jul 2025

01h 24m
ellipse
Non Stop

STL

15:47

St Louis

St Louis Lambert International Airport

Wed, 09 Jul 2025

£112
United Airlines
United Airlines

ORD

16:47

Chicago

Chicago O Hare International Airport

Wed , 09 Jul 2025

01h 20m
ellipse
Non Stop

STL

18:07

St Louis

St Louis Lambert International Airport

Wed, 09 Jul 2025

£132
ellipse

Find the Lowest Airfare Chicago to St Louis

Cheapest Fares
Fare
Date
Airline
Departure
Lowest Airfare
£141
01 May 2025
Southern Airways Express
13:10 PM
Cheapest Airfare Within 30 Days
£141
01 May 2025
Southern Airways Express
13:10 PM
Cheapest Airfare Within 90 Days
£141
01 May 2025
Southern Airways Express
13:10 PM
ellipse

Early Morning Flight Chicago to St Louis

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Cheapest Flight
Found
£75
group
Average Flight
Time
03h 55m
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Date/Time
03 Jul 2025
08:15 AM
plane
Airlines
Southern Airways Express
Ellipse

Late Night Flight Chicago to St Louis

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Cheapest Flight
Found
£132
group
Average Flight
Time
01h 25m
calendar
Date/Time
03 Jul 2025
21:20 PM
plane
Airlines
United Airlines

Flights from Chicago to St Louis with Easemytrip

Flying from Chicago to St Louis has never been easier. Whether you’re planning a short business trip, a weekend getaway, or reconnecting with family and friends, Easemytrip brings you the best deals, seamless booking, and flexible options for this popular flight route. Our platform is built to help travellers like you compare flight prices, explore direct and connecting options, and find the perfect departure time — all within a few clicks.

The air route between Chicago to St Louis is one of the most frequently travelled, offering reliable services from top airlines and excellent connectivity between Chicago O Hare International Airport (ORD) and St Louis Lambert International Airport (STL). You can expect a flight distance of approximately 415 km, and most direct services cover it in around 02:45.

Let’s take a closer look at everything you need to know before booking your flight from Chicago to St Louis.

Travel Overview: Chicago to St Louis

Flight Details Information
Route Distance 415 km
Average Flight Time 02:45 hrs
Departure Airport Chicago O Hare International Airport (ORD)
Arrival Airport St Louis Lambert International Airport (STL)
Cabin Classes Available Economy Class, Premium Economy, Business Class, First Class
Direct Flights YES
Common Airlines Southern Airways Express, American Airlines, United Airlines, Delta Airlines

The route is serviced regularly by both full-service and budget airlines, catering to all types of travellers — from those looking for no-frills budget options to those preferring business and first-class comfort. If you're flying for business, early morning weekday flights are a great choice, while leisure travellers often opt for weekend and evening departures.

Read more

FAQs about flights from Chicago to St Louis

Are there direct flights from Chicago to St Louis?

How early should I book?

Which airlines offer the most frequent service?

Is it cheaper to fly round-trip or one-way?

Can I mix airlines for departure and return?

Is it possible to change or cancel my booking after confirmation?

Can I book additional baggage or in-flight services in advance?