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Cheap Flight Deals from St. Louis to Chicago

For as little as AU$ 79, you can take your next adventure to Chicago without breaking the bank. Choose between one-way and return tickets from St. Louis below.

  • One way
  • Return
      • Cheapest nonstop
        STL05:40
        1h 28m
        Nonstop
        ORD07:08
        Mon, Feb 3|St. Louis - Chicago|American Airlines
        AU$ 106AU$ 120
        12% OFF
        12% OFF
        AU$ 120AU$ 106

        Choose American Airlines flights from St. Louis to Chicago. The one-way direct flight with American Airlines departs from St.Louis Lambert International Airport on Mon, Feb 3, arriving at O'Hare International Airport. One-way Prices start from AU$ 106 including taxes and charges.

      • STL05:40
        1h 28m
        Nonstop
        ORD07:08
        Tue, Jan 21|St. Louis - Chicago|American Airlines
        AU$ 109AU$ 120
        9% OFF
        9% OFF
        AU$ 120AU$ 109

        Choose American Airlines flights from St. Louis to Chicago. The one-way direct flight with American Airlines departs from St.Louis Lambert International Airport on Tue, Jan 21, arriving at O'Hare International Airport. One-way Prices start from AU$ 109 including taxes and charges.

      • STL12:15
        3h 35m
        1 stop
        ORD15:50
        Fri, Jan 10|St. Louis - Chicago|Southern Airways Express
        AU$ 79AU$ 120
        34% OFF
        34% OFF
        AU$ 120AU$ 79

        Choose Southern Airways Express flights from St. Louis to Chicago. The one-way connecting flight with Southern Airways Express departs from St.Louis Lambert International Airport on Fri, Jan 10, arriving at O'Hare International Airport. One-way Prices start from AU$ 79 including taxes and charges.

      • STL12:15
        3h 35m
        1 stop
        ORD15:50
        Sun, Feb 2|St. Louis - Chicago|Southern Airways Express
        AU$ 81
        AU$ 81

        Choose Southern Airways Express flights from St. Louis to Chicago. The one-way connecting flight with Southern Airways Express departs from St.Louis Lambert International Airport on Sun, Feb 2, arriving at O'Hare International Airport. One-way Prices start from AU$ 81 including taxes and charges.

      • STL12:15
        3h 35m
        1 stop
        ORD15:50
        Sat, Jan 11|St. Louis - Chicago|Southern Airways Express
        AU$ 82
        AU$ 82

        Choose Southern Airways Express flights from St. Louis to Chicago. The one-way connecting flight with Southern Airways Express departs from St.Louis Lambert International Airport on Sat, Jan 11, arriving at O'Hare International Airport. One-way Prices start from AU$ 82 including taxes and charges.

      • STL12:15
        3h 35m
        1 stop
        ORD15:50
        Sat, Jan 18|St. Louis - Chicago|Southern Airways Express
        AU$ 82
        AU$ 82

        Choose Southern Airways Express flights from St. Louis to Chicago. The one-way connecting flight with Southern Airways Express departs from St.Louis Lambert International Airport on Sat, Jan 18, arriving at O'Hare International Airport. One-way Prices start from AU$ 82 including taxes and charges.

      • STL12:15
        3h 35m
        1 stop
        ORD15:50
        Mon, Feb 10|St. Louis - Chicago|Southern Airways Express
        AU$ 82
        AU$ 82

        Choose Southern Airways Express flights from St. Louis to Chicago. The one-way connecting flight with Southern Airways Express departs from St.Louis Lambert International Airport on Mon, Feb 10, arriving at O'Hare International Airport. One-way Prices start from AU$ 82 including taxes and charges.

      • STL12:15
        3h 35m
        1 stop
        ORD15:50
        Tue, Jan 28|St. Louis - Chicago|Southern Airways Express
        AU$ 82
        AU$ 82

        Choose Southern Airways Express flights from St. Louis to Chicago. The one-way connecting flight with Southern Airways Express departs from St.Louis Lambert International Airport on Tue, Jan 28, arriving at O'Hare International Airport. One-way Prices start from AU$ 82 including taxes and charges.

      • STL12:15
        3h 35m
        1 stop
        ORD15:50
        Mon, Jan 27|St. Louis - Chicago|Southern Airways Express
        AU$ 82
        AU$ 82

        Choose Southern Airways Express flights from St. Louis to Chicago. The one-way connecting flight with Southern Airways Express departs from St.Louis Lambert International Airport on Mon, Jan 27, arriving at O'Hare International Airport. One-way Prices start from AU$ 82 including taxes and charges.

      • STL12:15
        3h 35m
        1 stop
        ORD15:50
        Thu, Feb 13|St. Louis - Chicago|Southern Airways Express
        AU$ 82
        AU$ 82

        Choose Southern Airways Express flights from St. Louis to Chicago. The one-way connecting flight with Southern Airways Express departs from St.Louis Lambert International Airport on Thu, Feb 13, arriving at O'Hare International Airport. One-way Prices start from AU$ 82 including taxes and charges.

      • STL01:00 pm
        3h 5m
        Nonstop
        CHI02:00 pm
        Mon, Jan 13|St. Louis - Chicago|American Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Best Time to Book Flights from St. Louis to Chicago

Price trend charts are a great way of tracking how much your flights cost in the lead up to departure and can help you choose when to book your tickets. See how prices to Chicago from St. Louis have changed and are set to move below.

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Top Airlines Flying from St. Louis to Chicago

Which airline provides the cheapest flights from St. Louis to Chicago? Discover the option that best suits your travel needs before embarking on your journey.

Southern Airways Express
From AU$ 79
American Airlines
From AU$ 106
United Airlines
From AU$ 116
Southwest Airlines
From AU$ 124
Delta Air Lines
From AU$ 127
Frontier Airlines
From AU$ 219

Find more flights and airlines

Alternative Routes from St. Louis to Chicago

Did you know that you can save money and time on an alternative route from St. Louis to Chicago? Check out some of the different available routes below.

  • Cheapest
    Southern Airways Express
    STL
    12:15
    3h 35m
    1 transfer
    ORD
    15:50
    St.Louis Lambert International Airport - O'Hare International Airport
    Fri, Jan 10Southern Airways Express
    AU$ 79
  • Southwest Airlines
    STL
    14:50
    1h 10m
    Nonstop
    MDW
    16:00
    St.Louis Lambert International Airport - Midway International Airport
    Tue, Jan 14Southwest Airlines
    AU$ 124
  • Southwest Airlines
    STL
    14:50
    1h 10m
    Nonstop
    MDW
    16:00
    St.Louis Lambert International Airport - Midway International Airport
    Tue, Jan 14Southwest Airlines
    AU$ 124
    Find More Flights

FAQ

  • When are flight from St. Louis (STL) to Chicago (CHI) the cheapest?

    Airlines adjust prices for flights from St. Louis to Chicago based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much are flights from St. Louis (STL) to Chicago (CHI) cost?

    According to Trip.com's data, the lowest price is around AU$ 353.

  • How long is the flights from St. Louis (STL) to Chicago (CHI)?

    It takes about 1 hour 24 minutes to fly from St. Louis (STL) to Chicago (CHI).

  • What is the transportation method from the main airport to downtown in Chicago?

    • The distance from O'Hare International Airport to downtown is about 25km, by taxi about 40 minutes.
    • The distance from Midway International Airport to downtown is about 14km, by taxi about 30 minutes.

  • What time does the earliest flight from St. Louis to Chicago depart?

    The earliest flight departs from St. Louis (STL) at 06:00 and arrives in Chicago (ORD) at 07:19.

  • What time does the latest flight from St. Louis to Chicago depart?

    The latest flight departs from St. Louis (STL) at 17:34 and arrives in Chicago (ORD) at 18:55.

  • What are the most popular airlines that fly from St. Louis (STL) to Chicago (CHI)?

  • What's the most popular airline for direct flights from St. Louis (STL) to Chicago (CHI)?

    Southwest Airlines operates 2 direct flights from St. Louis (STL) to Chicago (CHI).

  • How many airports in Chicago (CHI)?

How to find a cheap flight from St. Louis to Chicago

If you don’t know some of the key things to look out for when buying flight tickets, prices can often end up sky high or, worse, sold out! We’ve carefully compiled our six most important steps to help ensure you’re getting the best deals when planning your next journey.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Information from St. Louis to Chicago

Cheapest direct flight priceAU$ 81
Cheapest return ticket priceAU$ 158
Off-season for travelNovember
Peak season for travelApril
Flight distance421.66km
Average flight time1 hour 24 minutes
Popular airlineSouthern Airways Express

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