
Popular airlines from St. Louis Lambert Intl. Airport (STL) to Chicago O'Hare Intl. Airport (ORD)
- Southern Airways
Southern Airways
- American Airlines
American Airlines
- United
United
- Delta
Delta
- Southwest Airlines
Southwest Airlines
- Frontier Airlines
Frontier Airlines
- Alaska Airlines
Alaska Airlines
- Plan, book, fly with confidence
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Cheap flights from St. Louis to Chicago (STL-ORD)
Prices were available within the past 7 days and start at €41 for one-way flights and €79 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, 4 Sep - Mon, 8 Sep
STL
St. Louis
ORD
Chicago
€79 Return, found 3 days ago
€79
Return
found 3 days ago

Thu, 11 Sep - Mon, 15 Sep
STL
St. Louis
ORD
Chicago
€101 Return, found 5 hours ago
€101
Return
found 5 hours ago

Thu, 4 Sep - Mon, 8 Sep
STL
St. Louis
ORD
Chicago
€118 Return, found 3 days ago
€118
Return
found 3 days ago

Thu, 11 Sep - Mon, 15 Sep
STL
St. Louis
ORD
Chicago
€128 Return, found 5 hours ago
€128
Return
found 5 hours ago

Thu, 11 Sep - Mon, 15 Sep
STL
St. Louis
ORD
Chicago
€138 Return, found 5 hours ago
€138
Return
found 5 hours ago

Thu, 11 Sep - Mon, 15 Sep
STL
St. Louis
ORD
Chicago
€143 Return, found 5 hours ago
€143
Return
found 5 hours ago

Thu, 4 Sep - Mon, 8 Sep
STL
St. Louis
ORD
Chicago
€144 Return, found 3 days ago
€144
Return
found 3 days ago

Thu, 4 Sep - Mon, 8 Sep
STL
St. Louis
ORD
Chicago
€150 Return, found 3 days ago
€150
Return
found 3 days ago

Thu, 11 Sep - Mon, 15 Sep
STL
St. Louis
ORD
Chicago
€153 Return, found 5 hours ago
€153
Return
found 5 hours ago

Thu, 11 Sep - Mon, 15 Sep
STL
St. Louis
ORD
Chicago
€201 Return, found 5 hours ago
€201
Return
found 5 hours ago
Find the cheapest month to fly from St. Louis (STL) to Chicago (ORD)
August is typically the cheapest month to fly
From €66 - €232 per traveller.
Graph displaying average flight prices per month
Origin airport | Lambert-St. Louis Intl. |
Destination airport | O'Hare Intl. |
Return price | €79 |
Distance | 413 km |
Average flight time | 1 hour 27 mins |
Perfect flights from St. Louis to Chicago
Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from St. Louis to Chicago. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
Our flexible Lambert-St. Louis Intl. to O'Hare Intl. ticket options cater to your travel preferences, with incredible one-way fares from €41 and roundtrip prices from €79. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at O'Hare Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Chicago.
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Top Routes from St. Louis
Top Routes to Chicago
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