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Flights from Chicago to St. Louis
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Flights from Chicago to St. Louis Starting at £38

Whether you’re going for a one-way or round-trip to St. Louis, we’ve got you covered! Check out these different flight options from Chicago below.

  • One way
  • Round-trip
      • Cheapest nonstop
        ORD15:05
        1h 16m
        Nonstop
        STL16:21
        Tue, Dec 10|Chicago - St. Louis|American Airlines
        £38£333
        89% OFF
        89% OFF
        £333£38

        Choose American Airlines flights from Chicago to St. Louis. The one-way direct flight with American Airlines departs from O'Hare International Airport on Tue, Dec 10, arriving at St. Louis Lambert International Airport. One-way Prices start from £38 including taxes and charges.

      • ORD20:45
        1h 20m
        Nonstop
        STL22:05
        Wed, Dec 11|Chicago - St. Louis|American Airlines
        £45£333
        86% OFF
        86% OFF
        £333£45

        Choose American Airlines flights from Chicago to St. Louis. The one-way direct flight with American Airlines departs from O'Hare International Airport on Wed, Dec 11, arriving at St. Louis Lambert International Airport. One-way Prices start from £45 including taxes and charges.

      • ORD20:45
        1h 20m
        Nonstop
        STL22:05
        Tue, Dec 17|Chicago - St. Louis|American Airlines
        £45£333
        86% OFF
        86% OFF
        £333£45

        Choose American Airlines flights from Chicago to St. Louis. The one-way direct flight with American Airlines departs from O'Hare International Airport on Tue, Dec 17, arriving at St. Louis Lambert International Airport. One-way Prices start from £45 including taxes and charges.

      • ORD20:45
        1h 25m
        Nonstop
        STL22:10
        Sun, Dec 8|Chicago - St. Louis|American Airlines
        £46
        £46

        Choose American Airlines flights from Chicago to St. Louis. The one-way direct flight with American Airlines departs from O'Hare International Airport on Sun, Dec 8, arriving at St. Louis Lambert International Airport. One-way Prices start from £46 including taxes and charges.

      • ORD15:05
        1h 16m
        Nonstop
        STL16:21
        Wed, Dec 18|Chicago - St. Louis|American Airlines
        £53
        £53

        Choose American Airlines flights from Chicago to St. Louis. The one-way direct flight with American Airlines departs from O'Hare International Airport on Wed, Dec 18, arriving at St. Louis Lambert International Airport. One-way Prices start from £53 including taxes and charges.

      • ORD17:50
        1h 13m
        Nonstop
        STL19:03
        Tue, Dec 3|Chicago - St. Louis|American Airlines
        £267
        £267

        Choose American Airlines flights from Chicago to St. Louis. The one-way direct flight with American Airlines departs from O'Hare International Airport on Tue, Dec 3, arriving at St. Louis Lambert International Airport. One-way Prices start from £267 including taxes and charges.

      • MDW07:15
        26h 1m
        1 stop
        STL09:16
        Thu, Jan 23|Chicago - St. Louis|Frontier Airlines
        £47
        £47

        Choose Frontier Airlines flights from Chicago to St. Louis. The one-way connecting flight with Frontier Airlines departs from Midway International Airport on Thu, Jan 23, arriving at St. Louis Lambert International Airport. One-way Prices start from £47 including taxes and charges.

      • MDW07:15
        26h 1m
        1 stop
        STL09:16
        Thu, Jan 16|Chicago - St. Louis|Frontier Airlines
        £48
        £48

        Choose Frontier Airlines flights from Chicago to St. Louis. The one-way connecting flight with Frontier Airlines departs from Midway International Airport on Thu, Jan 16, arriving at St. Louis Lambert International Airport. One-way Prices start from £48 including taxes and charges.

      • MDW08:15
        24h 51m
        1 stop
        STL09:06
        Tue, Jan 14|Chicago - St. Louis|Frontier Airlines
        £48
        £48

        Choose Frontier Airlines flights from Chicago to St. Louis. The one-way connecting flight with Frontier Airlines departs from Midway International Airport on Tue, Jan 14, arriving at St. Louis Lambert International Airport. One-way Prices start from £48 including taxes and charges.

      • ORD09:34
        6h 26m
        1 stop
        STL16:00
        Tue, Dec 10|Chicago - St. Louis|Delta Air Lines
        £53
        £53

        Choose Delta Air Lines flights from Chicago to St. Louis. The one-way connecting flight with Delta Air Lines departs from O'Hare International Airport on Tue, Dec 10, arriving at St. Louis Lambert International Airport. One-way Prices start from £53 including taxes and charges.

      • CHI13:00
        3h 5m
        Nonstop
        STL14:00
        Tue, Dec 10|Chicago - St. Louis|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.

Find the best time to fly from Chicago to St. Louis

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 St. Louis from Chicago 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.

Airlines Flying from Chicago to St. Louis

We have a range of prices from different airlines providing flights from Chicago to St. Louis. Check below for the journey which best suits your travel needs.

Frontier Airlines
From £47
Delta Air Lines
From £53
United Airlines
From £55
Southwest Airlines
From £58
Southern Airways Express
From £101
American Airlines
From £267

Find more flights and airlines

Alternative Routes from Chicago to St. Louis

There are various non-direct routes from Chicago to St. Louis which could be cheaper and faster! Check out these alternative options to see if they could work for your trip.

  • Cheapest
    Frontier Airlines
    MDW
    07:15
    26h 1m
    1 transfer
    STL
    09:16
    Midway International Airport - St. Louis Lambert International Airport
    Thu, Jan 23Frontier Airlines
    £47
  • American Airlines
    ORD
    17:50
    1h 13m
    Nonstop
    STL
    19:03
    O'Hare International Airport - St. Louis Lambert International Airport
    Tue, Dec 3American Airlines
    £267
  • American Airlines
    ORD
    17:50
    1h 13m
    Nonstop
    STL
    19:03
    O'Hare International Airport - St. Louis Lambert International Airport
    Tue, Dec 3American Airlines
    £267
    Find More Flights

FAQ

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

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

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

    According to Trip.com's data, the lowest price is around £168.

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

    It takes about 1 hour 57 minutes to fly from Chicago (CHI) to St. Louis (STL).

  • What is the transportation method from the main airport to downtown in St. Louis?

    • The distance from St. Louis Lambert International Airport to downtown is about 20km, by taxi about 40 minutes.

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

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

    Southwest Airlines operates 1 direct flights from Chicago (CHI) to St. Louis (STL).

  • How many airports in St. Louis (STL)?

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

Understanding the common pitfalls when booking your flight tickets can help you save massively when it comes time to fly. We’ve listed our six essential steps to keep in mind when you’re booking flight tickets to help you find the best price.
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 Chicago to St. Louis

Cheapest direct flight price£38
Cheapest return ticket price£83
Off-season travel monthNovember
Peak season for travelFebruary
Flight distance421.66km
Average flight time1 hour 57 minutes
Popular airlineAmerican Airlines

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