₩220,100 Cheap Flights from St. Louis (STL) to Chicago (ORD)

View ₩220,100 flight on Tue, Nov 25, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Chicago O'Hare Intl. Airport (ORD)

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Cheap Flights from St. Louis to Chicago (STL-ORD)

Prices were available within the past 7 days and start at ₩220,100 for one-way flights and ₩481,800 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, Nov 25 - Sun, Nov 30
STL
St. Louis
ORD
Chicago
₩481,800 Roundtrip, found 4 hours ago
₩481,800
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Tue, Nov 25 from St. Louis to Chicago, returning Sun, Nov 30, priced at ₩481,800 found 4 hours ago
Delta
Tue, Nov 25 - Sun, Nov 30
STL
St. Louis
ORD
Chicago
₩495,400 Roundtrip, found 4 hours ago
₩495,400
Roundtrip
found 4 hours ago
Select Delta flight, departing Tue, Nov 25 from St. Louis to Chicago, returning Sun, Nov 30, priced at ₩495,400 found 4 hours ago
United
Tue, Nov 25 - Sun, Nov 30
STL
St. Louis
ORD
Chicago
₩523,400 Roundtrip, found 4 hours ago
₩523,400
Roundtrip
found 4 hours ago
Select United flight, departing Tue, Nov 25 from St. Louis to Chicago, returning Sun, Nov 30, priced at ₩523,400 found 4 hours ago
American Airlines
Tue, Nov 25 - Sun, Nov 30
STL
St. Louis
ORD
Chicago
₩523,500 Roundtrip, found 4 hours ago
₩523,500
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Tue, Nov 25 from St. Louis to Chicago, returning Sun, Nov 30, priced at ₩523,500 found 4 hours ago
American Airlines
Tue, Nov 25 - Sun, Nov 30
STL
St. Louis
ORD
Chicago
₩537,000 Roundtrip, found 4 hours ago
₩537,000
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Tue, Nov 25 from St. Louis to Chicago, returning Sun, Nov 30, priced at ₩537,000 found 4 hours ago
Delta
Tue, Nov 25 - Sun, Nov 30
STL
St. Louis
ORD
Chicago
₩537,100 Roundtrip, found 4 hours ago
₩537,100
Roundtrip
found 4 hours ago
Select Delta flight, departing Tue, Nov 25 from St. Louis to Chicago, returning Sun, Nov 30, priced at ₩537,100 found 4 hours ago
Delta
Tue, Nov 25 - Sun, Nov 30
STL
St. Louis
ORD
Chicago
₩539,800 Roundtrip, found 4 hours ago
₩539,800
Roundtrip
found 4 hours ago
Select Delta flight, departing Tue, Nov 25 from St. Louis to Chicago, returning Sun, Nov 30, priced at ₩539,800 found 4 hours ago
United
Tue, Nov 25 - Sun, Nov 30
STL
St. Louis
ORD
Chicago
₩565,100 Roundtrip, found 4 hours ago
₩565,100
Roundtrip
found 4 hours ago
Select United flight, departing Tue, Nov 25 from St. Louis to Chicago, returning Sun, Nov 30, priced at ₩565,100 found 4 hours ago
American Airlines
Tue, Nov 25 - Sun, Nov 30
STL
St. Louis
ORD
Chicago
₩578,700 Roundtrip, found 4 hours ago
₩578,700
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Tue, Nov 25 from St. Louis to Chicago, returning Sun, Nov 30, priced at ₩578,700 found 4 hours ago
American Airlines
Tue, Nov 25 - Sun, Nov 30
STL
St. Louis
ORD
Chicago
₩579,000 Roundtrip, found 4 hours ago
₩579,000
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Tue, Nov 25 from St. Louis to Chicago, returning Sun, Nov 30, priced at ₩579,000 found 4 hours ago
Delta
Tue, Nov 25 - Sun, Nov 30
STL
St. Louis
ORD
Chicago
₩581,500 Roundtrip, found 4 hours ago
₩581,500
Roundtrip
found 4 hours ago
Select Delta flight, departing Tue, Nov 25 from St. Louis to Chicago, returning Sun, Nov 30, priced at ₩581,500 found 4 hours ago
Delta
Tue, Nov 25 - Sun, Nov 30
STL
St. Louis
ORD
Chicago
₩592,600 Roundtrip, found 4 hours ago
₩592,600
Roundtrip
found 4 hours ago
Select Delta flight, departing Tue, Nov 25 from St. Louis to Chicago, returning Sun, Nov 30, priced at ₩592,600 found 4 hours ago
United
Tue, Nov 25 - Sun, Nov 30
STL
St. Louis
ORD
Chicago
₩606,700 Roundtrip, found 4 hours ago
₩606,700
Roundtrip
found 4 hours ago
Select United flight, departing Tue, Nov 25 from St. Louis to Chicago, returning Sun, Nov 30, priced at ₩606,700 found 4 hours ago

Find the cheapest month to fly from St. Louis (STL) to Chicago (ORD)

August is typically the cheapest month to fly

From ₩106,834 - ₩393,974 per traveler.

Frequently asked questions

How much is a flight from St. Louis Lambert International Airport to O'Hare Intl. Airport (ORD)?
Based on airfares listed within the last 7 days on Expedia for flights departing within the next year, round-trip flights from Lambert-St. Louis Intl. Airport (STL) to ORD start from ₩481,800. Make your booking today to get the best price for your trip. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Lambert-St. Louis Intl. Airport (STL) to O'Hare Intl. Airport (ORD)?
Each air carrier has its own terms and conditions. If you decide to cancel your getaway, visit our Customer Service Portal.
How do I find cheap flights from STL to ORD that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for STL to O'Hare Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Lambert Field to ORD?
With a flight distance of 420 kilometers, it's only a short hop from St. Louis Lambert International Airport to ORD. It might be a quick journey, but it's still worth bringing something to read.
Which airlines fly direct from Lambert-St. Louis Intl. Airport (STL) to O'Hare Airport?
There are a few airlines that fly directly from Lambert-St. Louis Intl. Airport (STL) to O'Hare Airport. United Airlines (UA) is a popular option, offering 208 flights each month. Like some more options? Check out the airfares with American Airlines (AA). This carrier offers 121 monthly flights between these airports.
Are Lambert Field to ORD flight tickets cheaper when they're purchased at the last minute?
Booking your trip from St. Louis Lambert International Airport to O'Hare Airport last minute could be your ticket to a fantastic deal. However, you might miss out on a flight altogether! If you'd rather play it safe, book well ahead of your departure date. In fact, Expedia has some of the best bargains as far ahead as 12 months in advance. If your preferred air carrier hasn't released tickets yet, check back often as deals are updated all the time on Expedia.

Travel information

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
O'Hare Intl.
Roundtrip price
₩481,800
Distance
413 km
Average flight time
1 hour 25 mins

Book with confidence

Book with confidence

St. Louis to Chicago Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from St. Louis to Chicago will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Chicago.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with STL to ORD flights that won’t make your bank account wince. Ready to temporarily leave behind St. Louis for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to ORD with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

St. Louis to Chicago Flights

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