Set your sights on the Gateway to the West with Southwest Airlines®. Whether you’re traveling for business, pleasure, or something in between, Southwest® has a variety of flights from Chicago Midway International Airport to Lambert-St. Louis International Airport. Search for your flight to St. Louis with Southwest and book with confidence. If your upcoming trip can be a little flexible, find flights with our Low Fare Calendar and get the lowest fares available. See all that Southwest Vacations® has to offer for special package deals on flights, hotels, rental cars, and more.
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Chicago (Midway), IL to St. Louis, MO
*Restrictions and exclusions apply. Seats and dates are limited. Select markets. 18 travel days available.
Departing from | Chicago Midway International Airport (MDW) |
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Arriving at | Lambert-St. Louis International Airport (STL) |
Average flight time | 1 hour 10 minutes |
Distance | 251 miles |
88† | Weekly flights |
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5‡ | Nonstop flights per day Monday through Friday |
3‡ | Nonstop flights on Saturday |
4‡ | Nonstop flights on Sunday |
Other popular flights from Chicago (Midway):
View our interactive map†Weekly flights based on DOT published scheduled average flights Monday through Sunday between 4/1/2024 and 4/30/2024. Note: route may not operate every day of the week.
‡Nonstop flights based on DOT published scheduled average flights Monday through Sunday between 4/1/2024 and 4/30/2024.
There might be nothing more famous in St. Louis than the arch on the Mississippi. Officially known as the Gateway Arch, it was built in the 1960s and stands at 630 feet tall. The arch helps to honor Lewis and Clark’s 19th-century explorations as well as the expansion to the West. Visit the Museum at the Gateway Arch, a National Park landmark, and learn about the Louisiana Purchase, the Dred Scott case, and more.
You may be coming from the home of deep dish pizza, but did you know that St. Louis is known for its own style of pizza? Its sauce features more oregano than other types of pizza, and the pizza is frequently made with Provel cheese, a type of processed cheese that combines provolone, Swiss, and white cheddar. With a thin, cracker-like crust, Provel cheese, and square slices, you may find yourself flying back to St. Louis more frequently thanks to this unique style of pizza.
After you fill up on pizza, discover Forest Park, a public park in western St. Louis. The park opened in 1876. It is known as the Heart of St. Louis, and with good reason: Forest Park features the St. Louis Zoo, the Saint Louis Art Museum, the Missouri History Museum, and the St. Louis Science Center, among other great landmarks. If your trip allows it, spend a few days exploring the park and all the great amenities it has to offer.
One child over 14 days and under two (2) years of age, not occupying a seat, may be carried free of charge when traveling with an adult (12 years of age or older). Learn more.
Customers flying with a pet are subject to a pet fare. To learn more about traveling with your furry friend, explore the Southwest® pet policy.
Minors under the age of 18 are not permitted to fly unaccompanied on international flights or any itinerary that includes an international flight. Learn more.
Lambert-St. Louis International Airport will bring you within 14 miles of downtown St. Louis. Hop on a bus, or train, or call a car to get on your way.
At Southwest, we know it takes more than great deals on St. Louis airfares and convenient scheduling options to make your trip memorable. So from booking to boarding, we offer services and features designed to make your travel from Chicago (Midway) to St. Louis the best it can be. Learn more about the Southwest® travel experience before you book your flight from Chicago Midway International Airport to Lambert-St. Louis International Airport.
Flying with Southwest is simple and fun, no matter which of our dozens of exciting destinations you choose. When you search for your next flight to St. Louis, know that you won’t be surprised at checkout. Low fares and no hidden fees. That's Transfarency®. And as always, two bags fly free®1. Want the latest news, information, and promotional offers from Southwest? Sign up to receive email from us. Book your flight today and know that you'll earn Rapid Rewards® points when you fly.
1First and second checked bags. Weight and size limits apply.
2Fare difference may apply.
3Failure to cancel a reservation at least 10 minutes prior to departure may result in forfeited Travel Funds.
4Flight credits unexpired on or created on or after July 28, 2022, do not expire and will show an expiration date until our systems are updated. See full details here.
5Where available. Available only on WiFi-enabled aircraft. Limited-time offer.
6Due to licensing restrictions, on WiFi-enabled international flights, free live TV and iHeartRadio may not be available for the full duration of flight.
7Internet access for $8 per device from takeoff to landing. Price is subject to change. May not be available for the full duration of flight. In order to provide a top-notch Internet experience, we prohibit access to certain high-bandwidth applications and websites. We also prohibit access to certain obscene or offensive content.