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Cheap Flights from St. Louis to Chicago starting at S$ 69

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

  • One way
  • Round-trip

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

Cheapest time to fly 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 lowest average weekly prices of the corresponding route on Trip.com.

Cheapest Airlines flying from St. Louis to Chicago

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

Southern Airways Express, Llc
From S$ 69
American Airlines
From S$ 90
United Airlines
From S$ 99
Southwest Airlines
From S$ 106
Delta Air Lines
From S$ 108
Frontier Airlines
From S$ 187

Find more flights and airlines

Alternative Routes from St. Louis to Chicago

Searching for potential routes that might be cheaper and faster? There are a few alternative ways to get to Chicago from St. Louis which could help you save money and time.

  • Cheapest
    Southern Airways Express, Llc
    STL
    12:15
    3h 35m
    1 transfer
    ORD
    15:50
    St. Louis Lambert International Airport - O'Hare International Airport
    Sun, Feb 2Southern Airways Express, Llc
    S$ 69
  • Southwest Airlines
    STL
    14:50
    1h 10m
    Nonstop
    MDW
    16:00
    St. Louis Lambert International Airport - Midway International Airport
    Tue, Jan 14Southwest Airlines
    S$ 106
  • Southwest Airlines
    STL
    14:50
    1h 10m
    Nonstop
    MDW
    16:00
    St. Louis Lambert International Airport - Midway International Airport
    Tue, Jan 14Southwest Airlines
    S$ 106
    Find More Flights

Frequently Asked Questions

  • When to buy flight tickets 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 cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much is a flight from St. Louis (STL) to Chicago (CHI) cost?

    According to Trip.com's data, the lowest price is around S$ 301.
  • How long is a flight 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?

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

Find cheapest flight ticket from St. Louis to Chicago

Cheapest direct flight priceS$ 67
Cheapest return ticket priceS$ 134
Off-season for travelNovember
Peak season for travelApril
Flight distance421.66km
Average flight time1 hour 24 minutes
Popular airlineSouthern Airways Express, Llc