Cheap flights from St. Louis (STL) to Chicago (CHI)
The best prices from Lambert-St Louis to Chicago are usually found in January or November, booked 38 days in advance, depart on a Thursday or Tuesday and return on a Saturday
How to find the cheapest flight from St. Louis (STL) to Chicago (CHI)
All the information you need to plan the best STL to CHI flight in 2022: compare St. Louis to Chicago flight prices with the expected peak season, weather and rainfall in Chicago.
STL - CHI Price | $167 - $352 |
|---|---|
CHI Temperature | 23 - 73.4 °F |
CHI Rainfall | 1.7 - 4.9 inches |
| Popular in | June | High demand for flights, 33% potential price rise |
|---|---|---|
| Cheapest in | January | Best time to find cheap flights, 29% potential price drop |
| Round-trip from | $167 | From Lambert-St Louis to Chicago (CHI) |
| One-way from | $89 | One-way flight from Lambert-St Louis to Chicago (CHI) |
What is the cheapest day to fly round-trip from St. Louis to Chicago?
Leaving on a Wednesday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 24% on the overall cost on flights from St. Louis to Chicago.
How far in advance should I book a flight from St. Louis to Chicago?
Users have found that booking a flight from St. Louis to Chicago at least 36 days early can save you up to 56% on average compared to booking a flight this week. If booking 36 days before your flight isn’t an option for you, users have found flights from St. Louis to Chicago for as little as $247 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $341 for flights departing within the next 3 days.
What is the cheapest month to fly from St. Louis to Chicago?
Due to multiple factors, expect to potentially pay more when booking in June. For low rates, January can be a great choice for travel to Chicago. Flights to Chicago from St. Louis in January are about $237 on average during January, but can be found for as low as $136.
When is the cheapest time to fly from St. Louis to Chicago (STL - CHI)?
It’s optimal to fly from St. Louis to Chicago in the evening. By choosing this option you can save up to 61% on the cost of your flight, compared to a flight in the afternoon.
Cheap flights from St. Louis to Chicago in September, October 2022
The best prices found for STL to CHI flights for September, October
Lambert-St Louis
Chicago O'Hare Intl
1 stop
28h 13mChicago O'Hare Intl
Lambert-St Louis
1 stop
24h 54mSpirit Airlines
Lambert-St Louis
Chicago O'Hare Intl
Nonstop
1h 18mChicago O'Hare Intl
Lambert-St Louis
Nonstop
1h 12mAmerican Airlines
Lambert-St Louis
Chicago O'Hare Intl
1 stop
9h 30mChicago O'Hare Intl
Lambert-St Louis
1 stop
11h 20mFrontier
St. Louis to Chicago 2022 flight deals
Cheap flights to Chicago from St. Louis found for this year
Lambert-St Louis
Chicago O'Hare Intl
1 stop
28h 13mChicago O'Hare Intl
Lambert-St Louis
1 stop
24h 54mSpirit Airlines
Lambert-St Louis
Chicago O'Hare Intl
Nonstop
1h 18mChicago O'Hare Intl
Lambert-St Louis
Nonstop
1h 12mAmerican Airlines
Lambert-St Louis
Chicago O'Hare Intl
1 stop
9h 30mChicago O'Hare Intl
Lambert-St Louis
1 stop
11h 20mFrontier
Cheap Spirit Airlines flights from St. Louis to Chicago
Lambert-St Louis
Chicago O'Hare Intl
1 stop
28h 13mChicago O'Hare Intl
Lambert-St Louis
1 stop
24h 54mSpirit Airlines
Lambert-St Louis
Chicago O'Hare Intl
1 stop
27h 21mChicago O'Hare Intl
Lambert-St Louis
1 stop
24h 54mSpirit Airlines
Lambert-St Louis
Chicago O'Hare Intl
1 stop
13h 49mChicago O'Hare Intl
Lambert-St Louis
1 stop
17h 23mSpirit Airlines
Cheap Frontier flights from St. Louis to Chicago
Lambert-St Louis
Chicago O'Hare Intl
1 stop
9h 30mChicago O'Hare Intl
Lambert-St Louis
1 stop
11h 20mFrontier
Lambert-St Louis
Chicago O'Hare Intl
1 stop
9h 30mChicago O'Hare Intl
Lambert-St Louis
1 stop
15h 01mFrontier
Lambert-St Louis
Chicago O'Hare Intl
1 stop
9h 30mChicago O'Hare Intl
Lambert-St Louis
1 stop
11h 20mFrontier
Non-stop flights to Chicago from St. Louis
Save time with St. Louis to Chicago direct flight deals
Lambert-St Louis
Chicago O'Hare Intl
Nonstop
1h 18mChicago O'Hare Intl
Lambert-St Louis
Nonstop
1h 12mAmerican Airlines
Lambert-St Louis
Chicago O'Hare Intl
Nonstop
1h 29mChicago O'Hare Intl
Lambert-St Louis
Nonstop
1h 25mUnited Airlines
Lambert-St Louis
Chicago O'Hare Intl
Nonstop
1h 17mChicago O'Hare Intl
Lambert-St Louis
Nonstop
1h 29mAmerican Airlines
Last minute flights from St. Louis to Chicago
Late deals on return flights to Chicago from St. Louis, departing today and this week
Lambert-St Louis
Chicago O'Hare Intl
1 stop
9h 30mChicago O'Hare Intl
Lambert-St Louis
1 stop
11h 20mFrontier
Lambert-St Louis
Chicago O'Hare Intl
1 stop
9h 30mChicago O'Hare Intl
Lambert-St Louis
1 stop
15h 01mFrontier
Lambert-St Louis
Chicago O'Hare Intl
1 stop
22h 32mChicago O'Hare Intl
Lambert-St Louis
2 stops
28h 34mSpirit Airlines
One-way flights to Chicago from St. Louis
The cheapest one-way flights from St. Louis to Chicago
Lambert-St Louis
Chicago O'Hare Intl
1 stop
28h 13mSpirit Airlines
Lambert-St Louis
Chicago O'Hare Intl
1 stop
14h 16mFrontier
Lambert-St Louis
Chicago Midway
1 stop
6h 57mMultiple Airlines
Related info for your journey
Useful info, stats and facts about St. Louis to Chicago flights.
What airport do you fly from for flights from St. Louis to Chicago?
If you book a flight to Chicago from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis. There are 38 flights from Lambert-St Louis to Chicago per day from 9 different airlines.
Which airlines flying from Lambert-St Louis to Chicago have flexible cancellations due to COVID-19?
Some of the carriers operating flights from Lambert-St Louis to Chicago that may be offering flexible cancellation policies are American Airlines, United Airlines, and Train. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.
Can I find flights from St. Louis to Chicago for under $200 on Cheapflights?
Yes, there are multiple flights from St. Louis to Chicago for under $200. The cheapest flight booked recently is on Spirit Airlines for just $151, but on average you can expect to pay $175.
Are there nonstop flights from St. Louis to Chicago for under $200 on Cheapflights?
Cheapflights has at least 20 direct flights from St. Louis to Chicago under $200. A good price for a nonstop flight from St. Louis to Chicago is less than $228.
Are there last-minute flights available from St. Louis to Chicago for under $200?
There are currently 20+ open flights from St. Louis to Chicago within the next 7 days for less than $200.
What days are nonstop flights available from St. Louis to Chicago?
Nonstop flights can be found on the following days: Sunday, Monday, Thursday, Friday, Saturday.
How many flights depart from St. Louis to Chicago on average per day?
Per day, 8 flights depart from St. Louis to Chicago on average.
Morning (6am - Noon) - 38% of flight departures
Afternoon (Noon - 6pm) - 63% of flight departures
How long is the flight from St. Louis to Chicago?
Departing from St. Louis to Chicago will take you 1h 18m. The distance between St. Louis and Chicago is about 259 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the cheapest airlines flying from St. Louis to Chicago round-trip?
Cheapflights users have booked flights from St. Louis to Chicago round-trip from $151. Other airlines that can offer you cheap pricing are American Airlines, from $156, and United Airlines, from $166. These flights start at 36% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from St. Louis to Chicago one-way?
To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $62. Frontier flights start at $76 while deals on United Airlines start at $78 one-way.
What are the most popular airlines that fly from St. Louis to Chicago?
The most popular airlines flying from St. Louis to Chicago are Train, Bus and Air Choice One. Something to consider prior to booking your flight.
What are the most reliable airlines from St. Louis to Chicago?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from St. Louis to Chicago on time: Republic Airways (100%), ANA (93%), GoJet (87%).
What are the cheapest flights from St. Louis to Chicago?
The cheapest flight price from St. Louis to Chicago is $120. On average you can expect to pay $333. The most popular route, (Lambert-St Louis - Chicago O'Hare Intl), can usually be booked for $175.
Other flights from St. Louis
Flights to Chicago from St. Louis
Alternative routes for St. Louis to Chicago
See prices for flight routes from nearby airports that may be better suited for you.
Top 3 airlines flying from St. Louis to Chicago
The chart below displays the airlines Cheapflights users traveling from St. Louis to Chicago choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Hourly flight availability from St. Louis to Chicago
See what time of day planes typically take off from St. Louis to Chicago
| 17%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 42%of flight departures | Morning6 am to noon |
| 39%of flight departures | AfternoonNoon to 6 pm |
| 2%of flight departures | Evening6 pm to midnight |
Weekly flight availability from St. Louis to Chicago
See how many times per day planes take to the skies headed from St. Louis to Chicago
| Sunday | 36daily flights |
|---|---|
| Monday | 35daily flights |
| Tuesday | 38daily flights |
| Wednesday | 56daily flights |
| Thursday | 53daily flights |
| Friday | 35daily flights |
| Saturday | 19daily flights |