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Cheap flights from St. Louis to Chicago

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Find the cheapest flights from St. Louis to Chicago

Cheap return flights

These are some of the best return flight deals from St. Louis to Chicago that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from St. Louis to Chicago.

Cheap last-minute flights

Planning a quick getaway from St. Louis to Chicago? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Chicago, so you can enjoy a seamless trip without stopovers.

Cheap bus & train deals from St. Louis to Chicago

Find recent round-trip train or bus tickets from St. Louis to Chicago.

All round-trip flight deals to Chicago

The cheapest plane tickets to Chicago found on KAYAK recently.
STL-ORD
1h 29mdirect
ORD-STL
1h 24mdirect
American Airlines
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STL-ORD
1h 28mdirect
ORD-STL
1h 31mdirect
Qatar Airways
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STL-ORD
1h 35mdirect
ORD-STL
1h 23mdirect
Air Canada
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STL-ORD
1h 29mdirect
ORD-STL
1h 27mdirect
Japan Airlines
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STL-ORD
1h 29mdirect
ORD-STL
1h 21mdirect
Aer Lingus
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STL-ORD
1h 29mdirect
ORD-STL
1h 29mdirect
Austrian Airlines
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STL-ORD
1h 30mdirect
ORD-STL
1h 30mdirect
Emirates
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STL-ORD
1h 22mdirect
ORD-STL
1h 31mdirect
Copa Airlines
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STL-ORD
1h 35mdirect
ORD-STL
1h 23mdirect
Air New Zealand
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STL-ORD
1h 35mdirect
ORD-STL
1h 23mdirect
United Airlines
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STL-ORD
1h 29mdirect
ORD-STL
1h 31mdirect
Alaska Airlines
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STL-ORD
1h 36mdirect
ORD-STL
1h 21mdirect
Avianca
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STL-ORD
1h 28mdirect
ORD-STL
1h 21mdirect
Cathay Pacific
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STL-MDW
1h 15mdirect
MDW-STL
1h 10mdirect
Southwest
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STL-ORD
1h 21mdirect
ORD-STL
1h 23mdirect
Turkish Airlines
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STL-ORD
1h 22mdirect
ORD-STL
1h 20mdirect
Finnair
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STL-ORD
1h 29mdirect
ORD-STL
1h 27mdirect
Royal Jordanian
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STL-ORD
1h 28mdirect
ORD-STL
1h 31mdirect
Iberia
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STL-ORD
1h 35mdirect
ORD-STL
1h 34mdirect
STL-ORD
1h 29mdirect
ORD-STL
1h 18mdirect
Lufthansa
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STL-ORD
1h 29mdirect
ORD-STL
1h 12mdirect
British Airways
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STL-ORD
1h 28mdirect
ORD-STL
1h 13mdirect
Gulf Air
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STL-ORD
1h 29mdirect
American Airlines
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STL-ORD
1h 28mdirect
Qatar Airways
Find Deal
STL-ORD
1h 35mdirect
Air Canada
Find Deal
STL-ORD
1h 29mdirect
Japan Airlines
Find Deal
STL-ORD
1h 29mdirect
Aer Lingus
Find Deal
STL-ORD
1h 29mdirect
Austrian Airlines
Find Deal
STL-ORD
1h 30mdirect
Emirates
Find Deal
STL-ORD
1h 22mdirect
Copa Airlines
Find Deal
STL-ORD
1h 35mdirect
Air New Zealand
Find Deal
STL-ORD
1h 35mdirect
United Airlines
Find Deal
STL-ORD
1h 29mdirect
Alaska Airlines
Find Deal
STL-ORD
1h 36mdirect
Avianca
Find Deal
STL-ORD
1h 28mdirect
Cathay Pacific
Find Deal
STL-MDW
1h 15mdirect
Southwest
Find Deal
STL-ORD
1h 21mdirect
Turkish Airlines
Find Deal
STL-ORD
1h 22mdirect
Finnair
Find Deal
STL-ORD
1h 29mdirect
Royal Jordanian
Find Deal
STL-ORD
1h 28mdirect
Iberia
Find Deal
STL-ORD
1h 35mdirect
STL-ORD
1h 29mdirect
Lufthansa
Find Deal
STL-ORD
1h 29mdirect
British Airways
Find Deal
STL-ORD
1h 28mdirect
Gulf Air
Find Deal

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 cheapest month to fly to Chicago?

The month of May is, on average, the cheapest month to fly to Chicago from St. Louis, with most prices found around R3 458. If you are unable to visit Chicago during the month of May, then departing from St. Louis during the month August is also very affordable. Most momondo users find prices during this month for around R3 586.

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 to Chicago?

The best time to book a flight to Chicago from St. Louis is 58 days out, which is when prices tend to be around R4 881. However, in the past 72 hours, people saw flights from St. Louis for as low as R32 809.

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

There are 1 cabin classes available to choose from on Lambert-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 December 2024, prices for St. Louis to Chicago flights are approximately 9% more expensive 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

Direct flights

None
There are no direct flights from St. Louis to Chicago. There are no popular flight routes 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?


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

Airports listed have a maximum distance of 25.6 km from Chicago