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Cheap flights from St. Louis to Chicago from R978

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from St. Louis to Chicago

Cheap return flights

Enter your travel dates to find the best prices.
Southwest Logo
10:20 - 16:10STL  Lambert-St Louis-MDW Chicago Midway
5h 50m2 stops Columbus Washington, D.C. Reagan-National
Southwest Logo
8:25 - 14:10MDW  Chicago Midway-STL Lambert-St Louis
5h 45m1 stop Washington, D.C. Reagan-National
R2 354Southwest
Wed, Oct 28 - Sat, Oct 31
United Airlines Logo
7:30 - 9:00STL  Lambert-St Louis-ORD Chicago O'Hare Intl
1h 30mdirect
United Airlines Logo
13:00 - 14:34ORD  Chicago O'Hare Intl-STL Lambert-St Louis
1h 34mdirect
R2 387United Airlines
Fri, Oct 30 - Tue, Nov 3
Southwest Logo
10:20 - 16:10STL  Lambert-St Louis-MDW Chicago Midway
5h 50m2 stops Columbus Washington, D.C. Reagan-National
Southwest Logo
8:35 - 15:05MDW  Chicago Midway-STL Lambert-St Louis
6h 30m2 stops Detroit Metropolitan Wayne County Baltimore/Washington
R2 437Southwest
Wed, Oct 28 - Sat, Oct 31
Southwest Logo
5:25 - 6:30STL  Lambert-St Louis-MDW Chicago Midway
1h 05mdirect
Southwest Logo
6:35 - 13:40MDW  Chicago Midway-STL Lambert-St Louis
7h 05m1 stop Dallas Love Field
R2 553Southwest
Fri, Oct 23 - Sat, Oct 24
Delta Logo
6:45 - 12:33STL  Lambert-St Louis-MDW Chicago Midway
5h 48m1 stop Detroit Metropolitan Wayne County
Delta Logo
9:55 - 15:59MDW  Chicago Midway-STL Lambert-St Louis
6h 04m1 stop Minneapolis St Paul
R2 602Delta
Wed, Feb 10 - Sat, Feb 13
Delta Logo
14:17 - 20:15STL  Lambert-St Louis-ORD Chicago O'Hare Intl
5h 58m1 stop Detroit Metropolitan Wayne County
Delta Logo
9:30 - 14:31ORD  Chicago O'Hare Intl-STL Lambert-St Louis
5h 01m1 stop Minneapolis St Paul
R2 602Delta
Thu, Dec 10 - Wed, Jan 13
Southwest Logo
21:35 - 22:45STL  Lambert-St Louis-MDW Chicago Midway
1h 10mdirect
Southwest Logo
10:20 - 19:20MDW  Chicago Midway-STL Lambert-St Louis
9h 00m2 stops Grand Rapids Gerald R. Ford Intl Baltimore/Washington
R2 636Southwest
Fri, Nov 6 - Sat, Nov 7
Southwest Logo
18:40 - 0:20STL  Lambert-St Louis-MDW Chicago Midway
5h 40m1 stop Denver Intl
Southwest Logo
10:30 - 16:05MDW  Chicago Midway-STL Lambert-St Louis
5h 35m1 stop Omaha Eppley Airfield
R2 718Southwest
Fri, Oct 23 - Sat, Oct 24
Southwest Logo
20:05 - 1:10STL  Lambert-St Louis-MDW Chicago Midway
5h 05m1 stop Dallas Love Field
Southwest Logo
10:20 - 19:20MDW  Chicago Midway-STL Lambert-St Louis
9h 00m2 stops Grand Rapids Gerald R. Ford Intl Baltimore/Washington
R2 801Southwest
Fri, Nov 6 - Sat, Nov 7
Southwest Logo
5:25 - 6:30STL  Lambert-St Louis-MDW Chicago Midway
1h 05mdirect
Southwest Logo
22:05 - 23:20MDW  Chicago Midway-STL Lambert-St Louis
1h 15mdirect
R2 834Southwest
Fri, Oct 30 - Fri, Oct 30

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United Airlines flights from St. Louis to Chicago

Our best United Airlines deals on St. Louis to Chicago flight tickets
United Airlines
Oct 30
STL7:30Lambert-St Louis
1h 30m
ORD9:00Chicago O'Hare Intl
Nov 3
ORD13:00Chicago O'Hare Intl
1h 34m
STL14:34Lambert-St Louis
R2 387
United Airlines
Oct 30
STL5:00Lambert-St Louis
1h 29m
ORD6:29Chicago O'Hare Intl
Oct 30
ORD12:55Chicago O'Hare Intl
1h 34m
STL14:29Lambert-St Louis
R2 834
United Airlines
Nov 2
STL7:30Lambert-St Louis
1h 30m
ORD9:00Chicago O'Hare Intl
Nov 3
ORD10:45Chicago O'Hare Intl
1h 25m
STL12:10Lambert-St Louis
R3 381

Delta flights from St. Louis to Chicago

Our best Delta deals on St. Louis to Chicago flight tickets
Delta
Dec 10
STL14:17Lambert-St Louis
5h 58m
1 stop
ORD20:15Chicago O'Hare Intl
Jan 13
ORD9:30Chicago O'Hare Intl
5h 01m
1 stop
STL14:31Lambert-St Louis
R2 602
Delta
Oct 30
STL14:38Lambert-St Louis
5h 52m
1 stop
ORD20:30Chicago O'Hare Intl
Nov 3
ORD6:20Chicago O'Hare Intl
4h 18m
1 stop
STL10:38Lambert-St Louis
R2 884
Delta
Dec 24
STL6:20Lambert-St Louis
6h 26m
1 stop
ORD12:46Chicago O'Hare Intl
Jan 1
ORD6:23Chicago O'Hare Intl
4h 12m
1 stop
STL10:35Lambert-St Louis
R3 166

momondo Fare Finder

 
Use the filters below to find and compare flights from St. Louis to Chicago that are best for you.

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Route

Depart

Return

Price

Cheapest return flight

St. LouisChicago

STL Lambert-St Louis - MDW Chicago Midway

STLMDW

Lambert-St Louis

Wed 28/10

10:20-16:10

2 stops5h 50m

Chicago Midway

Sat 31/10

8:25-14:10

1 stop5h 45m

R2 354

St. LouisChicago

STL Lambert-St Louis - ORD Chicago O'Hare Intl

STLORD

Lambert-St Louis

Fri 30/10

7:30-9:00

Nonstop1h 30m

Chicago O'Hare Intl

Tue 3/11

13:00-14:34

Nonstop1h 34m

R2 387

St. LouisChicago

STL Lambert-St Louis - MDW Chicago Midway

STLMDW

Lambert-St Louis

Wed 28/10

10:20-16:10

2 stops5h 50m

Chicago Midway

Sat 31/10

8:35-15:05

2 stops6h 30m

R2 437

St. LouisChicago

STL Lambert-St Louis - MDW Chicago Midway

STLMDW

Lambert-St Louis

Fri 23/10

5:25-6:30

Nonstop1h 05m

Chicago Midway

Sat 24/10

6:35-13:40

1 stop7h 05m

R2 553

St. LouisChicago

STL Lambert-St Louis - MDW Chicago Midway

STLMDW

Lambert-St Louis

Wed 10/2

6:45-12:33

1 stop5h 48m

Chicago Midway

Sat 13/2

9:55-15:59

1 stop6h 04m

R2 602

St. LouisChicago

STL Lambert-St Louis - ORD Chicago O'Hare Intl

STLORD

Lambert-St Louis

Thu 10/12

14:17-20:15

1 stop5h 58m

Chicago O'Hare Intl

Wed 13/1

9:30-14:31

1 stop5h 01m

R2 602

St. LouisChicago

STL Lambert-St Louis - MDW Chicago Midway

STLMDW

Lambert-St Louis

Fri 6/11

21:35-22:45

Nonstop1h 10m

Chicago Midway

Sat 7/11

10:20-19:20

2 stops9h 00m

R2 636

St. LouisChicago

STL Lambert-St Louis - MDW Chicago Midway

STLMDW

Lambert-St Louis

Fri 23/10

18:40-0:20

1 stop5h 40m

Chicago Midway

Sat 24/10

10:30-16:05

1 stop5h 35m

R2 718

St. LouisChicago

STL Lambert-St Louis - MDW Chicago Midway

STLMDW

Lambert-St Louis

Fri 6/11

20:05-1:10

1 stop5h 05m

Chicago Midway

Sat 7/11

10:20-19:20

2 stops9h 00m

R2 801
Fastest return journey

St. LouisChicago

STL Lambert-St Louis - MDW Chicago Midway

STLMDW

Lambert-St Louis

Fri 30/10

5:25-6:30

Nonstop1h 05m

Chicago Midway

Fri 30/10

22:05-23:20

Nonstop1h 15m

R2 834

Flights are sorted by cheapest return flights first.

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See travel insights to Chicago from

How to get the cheapest flight ticket from St. Louis to Chicago

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between St. Louis and Chicago?

Prices are currently low for flights on this route.

Typical prices usually range from R4 293 to R7 376.
The lowest price recently found on this route was R2 354.

What is the cheapest month to fly to Chicago?

The month of November is, on average, the cheapest month to fly to Chicago from St. Louis, with most prices found around R4 956. If you are unable to visit Chicago during the month of November, then departing from St. Louis during the month October is also very affordable. Most momondo users find prices during this month for around R5 321.

What is the cheapest Lambert-St Louis to Chicago flight route?

Fly from Lambert-St Louis to Chicago O'Hare Intl for the best Lambert-St Louis - Chicago flight prices

How far in advance should I book a flight from St. Louis to Chicago?

You are more likely to see cheaper flights to Chicago from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago for around R6 100 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago from St. Louis for as low as R1 939 on momondo.

What cabin class options are available on St. Louis to Chicago flights?

There is only 1 cabin class available to choose from on St. Louis to Chicago flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have St. Louis to Chicago flight prices changed over time?

As of October 2026, prices for St. Louis to Chicago flights are approximately 22% cheaper when compared to flights at the same time last year.

When to book flights from St. Louis to Chicago

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Chicago according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap St. Louis to Chicago (STL to CHI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Chicago

Best price found

R978

Direct flights

Every day

Airports in Chicago

3 airports
The best one-way flight to Chicago from St. Louis in the past 72 hours is R978. The best return flight deal from St. Louis to Chicago found on momondo in the last 72 hours is R2 354.
Direct flights go from St. Louis to Chicago every day.
There are 3 airports in Chicago. From St. Louis there are direct flights to Chicago O'Hare Intl (ORD), Chicago Midway (MDW).
Search flight deals

Frequently asked questions about flying from St. Louis to Chicago

  • How far is Lambert-St Louis to Chicago by plane?

    There are 421,6 km between Lambert-St Louis and Chicago.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Chicago?

    Prices for flights from Lambert-St Louis Airport to Chicago are updated daily.

  • How old do you have to be to fly from Lambert-St Louis Airport to Chicago?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Chicago.

  • What documentation or ID do you need to fly to Chicago?

    The necessary travel and health documents for your Chicago trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from St. Louis to Chicago?

Travelling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Hammond

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Chicago?

It is quick and easy to find St. Louis to Chicago flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Chicago that suits you.

Can I find flights from St. Louis to Chicago with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for St. Louis to Chicago flights to just show those with flexible booking policies.

How can momondo help me find flights from St. Louis to Chicago?

momondo provides multiple filters to help you find the best flight to Chicago from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from St. Louis to Chicago right now. Can momondo alert me if prices change?

Yes. momondo can track prices for St. Louis to Chicago flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Find better results for your trip to the United States

Fly into one of these airports located in Chicago

Chicago Midway Airport
Chicago O'Hare Intl Airport