₩141,000 Cheap Flights from Chicago (ORD) to St. Louis (STL)

View ₩141,000 flight on Sun, Oct 12, 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at ₩141,000 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

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

September is typically the cheapest month to fly

From ₩107,430 - ₩485,829 per traveler.
Flights from Chicago (ORD) to St. Louis (STL)
Origin airport
O'Hare Intl.
Destination airport
Lambert-St. Louis Intl.
Distance
413 km
Average flight time
1 hour 23 mins

Chicago to St. Louis 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 Chicago to St. Louis 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 St. Louis.

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 ORD to STL flights that won’t make your bank account wince. Ready to temporarily leave behind Chicago 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 STL 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.

Frequently asked questions

How much is a flight from ORD to STL?
The lowest price advertised for a round-trip flight between O'Hare Intl. Airport (ORD) and STL is . But you better act quick. This price is taken from fares quoted within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from O'Hare Intl. Airport (ORD) to St. Louis Lambert International Airport?
When it comes to cancellation fees, every airline has its own terms and conditions. If you decide to cancel your trip, head to our Customer Service Portal.
How do I find cheap flights from O'Hare Intl. Airport (ORD) to STL 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 O'Hare Intl. Airport (ORD) to St. Louis Lambert International Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from O'Hare Airport to Lambert Field?
You might not get through a whole movie on this flight — it's just 420 kilometers from Chicago to St. Louis. Sit down, order a snack and you'll be in St. Louis in no time.
Which airlines fly direct from O'Hare Airport to St. Louis Lambert International Airport?
United Airlines (UA) is one of the preferred choices for many travelers flying between ORD and St. Louis Lambert International Airport. Choose from the 208 flights it offers on this route each month. Operating 117 flights a month on this route, American Airlines (AA) is another good choice.
Are O'Hare Intl. Airport (ORD) to Lambert-St. Louis Intl. Airport (STL) flight tickets cheaper when they're purchased at the last minute?
Booking last minute from O'Hare Intl. Airport (ORD) to St. Louis Lambert International Airport can be hit-or-miss. It is possible to find a bargain, but then again, you could miss out! If you'd prefer to play it safe and start your trip planning early on, Expedia compares flight deals up to 12 months in advance. Just keep in mind that not all airlines advertise their prices that far in advance. Our suggestion? Check back often as updates are made frequently.

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