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Cheap Flight Deals from Chicago to St. Louis

For as little as AU$ 80, you can take your next adventure to St. Louis without breaking the bank. Choose between one-way and return tickets from Chicago below.

  • One way
  • Return
      • Cheapest nonstop
        ORD09:55
        1h 26m
        Nonstop
        STL11:21
        Tue, Feb 18|Chicago - St. Louis|American Airlines
        AU$ 80AU$ 601
        87% OFF
        87% OFF
        AU$ 601AU$ 80

        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, Feb 18, arriving at St. Louis Lambert International Airport. One-way Prices start from AU$ 80 including taxes and charges.

      • ORD15:00
        1h 21m
        Nonstop
        STL16:21
        Tue, Feb 25|Chicago - St. Louis|American Airlines
        AU$ 81AU$ 601
        86% OFF
        86% OFF
        AU$ 601AU$ 81

        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, Feb 25, arriving at St. Louis Lambert International Airport. One-way Prices start from AU$ 81 including taxes and charges.

      • ORD20:45
        1h 24m
        Nonstop
        STL22:09
        Mon, Feb 10|Chicago - St. Louis|American Airlines
        AU$ 104AU$ 601
        83% OFF
        83% OFF
        AU$ 601AU$ 104

        Choose American Airlines flights from Chicago to St. Louis. The one-way direct flight with American Airlines departs from O'Hare International Airport on Mon, Feb 10, arriving at St. Louis Lambert International Airport. One-way Prices start from AU$ 104 including taxes and charges.

      • ORD16:42
        1h 17m
        Nonstop
        STL17:59
        Thu, Apr 3|Chicago - St. Louis|American Airlines
        AU$ 104
        AU$ 104

        Choose American Airlines flights from Chicago to St. Louis. The one-way direct flight with American Airlines departs from O'Hare International Airport on Thu, Apr 3, arriving at St. Louis Lambert International Airport. One-way Prices start from AU$ 104 including taxes and charges.

      • ORD09:55
        1h 26m
        Nonstop
        STL11:21
        Sat, Mar 1|Chicago - St. Louis|American Airlines
        AU$ 105
        AU$ 105

        Choose American Airlines flights from Chicago to St. Louis. The one-way direct flight with American Airlines departs from O'Hare International Airport on Sat, Mar 1, arriving at St. Louis Lambert International Airport. One-way Prices start from AU$ 105 including taxes and charges.

      • ORD20:57
        1h 17m
        Nonstop
        STL22:14
        Thu, Mar 6|Chicago - St. Louis|American Airlines
        AU$ 108
        AU$ 108

        Choose American Airlines flights from Chicago to St. Louis. The one-way direct flight with American Airlines departs from O'Hare International Airport on Thu, Mar 6, arriving at St. Louis Lambert International Airport. One-way Prices start from AU$ 108 including taxes and charges.

      • ORD15:00
        1h 20m
        Nonstop
        STL16:20
        Thu, Feb 6|Chicago - St. Louis|American Airlines
        AU$ 535
        AU$ 535

        Choose American Airlines flights from Chicago to St. Louis. The one-way direct flight with American Airlines departs from O'Hare International Airport on Thu, Feb 6, arriving at St. Louis Lambert International Airport. One-way Prices start from AU$ 535 including taxes and charges.

      • ORD06:50
        26h 26m
        1 stop
        STL09:16
        Thu, Feb 20|Chicago - St. Louis|Frontier Airlines
        AU$ 96
        AU$ 96

        Choose Frontier Airlines flights from Chicago to St. Louis. The one-way connecting flight with Frontier Airlines departs from O'Hare International Airport on Thu, Feb 20, arriving at St. Louis Lambert International Airport. One-way Prices start from AU$ 96 including taxes and charges.

      • MDW07:15
        26h 1m
        1 stop
        STL09:16
        Thu, Feb 6|Chicago - St. Louis|Frontier Airlines
        AU$ 100
        AU$ 100

        Choose Frontier Airlines flights from Chicago to St. Louis. The one-way connecting flight with Frontier Airlines departs from Midway International Airport on Thu, Feb 6, arriving at St. Louis Lambert International Airport. One-way Prices start from AU$ 100 including taxes and charges.

      • MDW08:15
        25h 1m
        1 stop
        STL09:16
        Tue, Feb 11|Chicago - St. Louis|Frontier Airlines
        AU$ 104
        AU$ 104

        Choose Frontier Airlines flights from Chicago to St. Louis. The one-way connecting flight with Frontier Airlines departs from Midway International Airport on Tue, Feb 11, arriving at St. Louis Lambert International Airport. One-way Prices start from AU$ 104 including taxes and charges.

      • CHI01:00 pm
        3h 5m
        Nonstop
        STL02:00 pm
        Thu, Feb 13|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.

Chicago to St. Louis Flight Time

Flight info.
Departure
Arrival
Weekly Schedule

  1. AA4595

    American Airlines

    08:00

    ORD

    1.4h

    Nonstop

    09:22

    STL

    ---W---
    Search

  2. AA4591

    American Airlines

    08:17

    ORD

    1.4h

    Nonstop

    09:42

    STL

    ---W---
    Search

  3. WN712

    Southwest Airlines

    09:05

    MDW

    1.3h

    Nonstop

    10:20

    STL

    -MT---S
    Search

  4. DL3858

    Delta Air Lines

    09:30

    MDW

    1.1h

    11:39

    DTW

    SMTWTFS
    Search

  5. DL2174

    Delta Air Lines

    12:30

    DTW

    1.8h

    13:15

    STL

    -MT----

  6. WN1594

    Southwest Airlines

    12:35

    MDW

    1.2h

    Nonstop

    13:45

    STL

    S--WT--
    Search

  7. AA4517

    American Airlines

    14:50

    ORD

    1.3h

    Nonstop

    16:10

    STL

    SMT-TFS
    Search

  8. AA2324

    American Airlines

    16:45

    ORD

    1.3h

    Nonstop

    18:01

    STL

    ---W---
    Search

  9. AA3497

    American Airlines

    16:50

    ORD

    1.3h

    Nonstop

    18:05

    STL

    --TW--S
    Search

  10. WN2962

    Southwest Airlines

    18:20

    MDW

    1.3h

    Nonstop

    19:35

    STL

    SMTWT-S
    Search

  11. AA1073

    American Airlines

    20:45

    ORD

    1.4h

    Nonstop

    22:07

    STL

    SMTWT-S
    Search
Find more flights and airlines

Best Time to Book Flights from Chicago to St. Louis

Explore the best time to buy affordable tickets to St. Louis with our price trend chart, which predicts how flight prices will change in the coming weeks from previous data.

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

FAQ

  • When are flight 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 lowest 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 AU$ 338.

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

    It takes about 1 hour 25 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 time does the earliest flight from Chicago to St. Louis depart?

    The earliest flight departs from Chicago (ORD) at 08:15 and arrives in St. Louis (STL) at 09:36.

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

    The latest flight departs from Chicago (ORD) at 20:50 and arrives in St. Louis (STL) at 22:28.

  • 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)?

    There are 1 airport(s) in St. Louis (STL): St. Louis Lambert International Airport.

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 priceAU$ 79
Cheapest return ticket priceAU$ 155
Off-season for travelJanuary
Peak season for travelNovember
Flight distance421.66km
Average flight time1 hour 25 minutes
Popular airlineSouthern Airways Express

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