Cheap flights from Chicago to Saint Louis
Travel > North America > United States > Chicago to Saint Louis flights
Check our current prices for flights from Chicago to Saint Louis. Please note that we also give you historical search data for this city connection. These are all airfares that people found in the past, in order to find more current flight information from Chicago to Saint Louis, you will need to run a search below.
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Book your flight now with Cheapoair.com and save!
Cheap Saint Louis airfares from $125/RT are provided by Cheapoair.com. Outbound flight is leaving on 03/11/2025, 08:20 pm from Chicago O`hare (ORD) airport and arrives at St. Louis Intl (STL) at 11:45 am. The flight time is 15 hours and 25 minutes. The Returning flight departes on 03/25/2025, 12:15 pm (other return dates are also available). Date posted: 13 Oct 2024
Price evolution for flights From Chicago To Saint Louis
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Recent Deals on Flights from Chicago to Saint Louis:Roundtrip / Oneway
- $125
Itali Airlines
cheapoair.com check priceFrom To Departure Time Chicago, IL (ORD) Saint Louis, MO (STL) 03/11/2025 08:20 pm Saint Louis, MO (STL) Chicago, IL (ORD) 03/25/2025 12:15 pm - $138
Multiple Airlines
cheapoair.com check priceFrom To Departure Time Chicago, IL (ORD) Saint Louis, MO (STL) 03/25/2025 08:20 pm Saint Louis, MO (STL) Chicago, IL (ORD) 04/07/2025 06:51 pm - $140
Frontier Airlines
cheapoair.com check priceFrom To Departure Time Chicago, IL (ORD) Saint Louis, MO (STL) 03/25/2025 09:25 am Saint Louis, MO (STL) Chicago, IL (ORD) 04/07/2025 06:51 pm - $161
Itali Airlines
cheapoair.com check priceFrom To Departure Time Chicago, IL (ORD) Saint Louis, MO (STL) 03/22/2025 08:20 pm Saint Louis, MO (STL) Chicago, IL (ORD) 03/29/2025 12:15 pm - $427
Multiple Airlines
cheapoair.com check priceFrom To Departure Time Chicago, IL (ORD) Saint Louis, MO (STL) 03/11/2025 07:30 pm Saint Louis, MO (STL) Chicago, IL (ORD) 03/25/2025 12:15 pm - $68
Itali Airlines
cheapoair.com check priceFrom To Departure Time Chicago, IL (ORD) Saint Louis, MO (STL) 03/11/2025 08:20 pm - $296
Frontier Airlines
cheapoair.com check priceFrom To Departure Time Chicago, IL (MDW) Saint Louis, MO (STL) 03/17/2025 12:49 pm - $359
Frontier Airlines
cheapoair.com check priceFrom To Departure Time Chicago, IL (MDW) Saint Louis, MO (STL) 03/11/2025 06:00 am - $365
Frontier Airlines
cheapoair.com check priceFrom To Departure Time Chicago, IL (ORD) Saint Louis, MO (STL) 03/11/2025 05:56 pm - $616
Frontier Airlines
cheapoair.com check priceFrom To Departure Time Chicago, IL (MDW) Saint Louis, MO (STL) 03/22/2025 08:43 pm
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Know what to do when flying to Saint Louis?
Saint Louis Travel Guide In 1764, René Augusta Chouteau and Pierre Laclede established Saint Louis as a fur trading post, after Louis IX, the king of France. The Soulard Farmer’s Market, which was founded in 1779, is in operation till date and prides [...]Saint Louis History Saint Louis, which belongs to the state of Missouri, is the second largest city in the state and has a rich history behind it. The city traces its roots back to the year 1763. It was founded by Pierre LaClede. He founded the city as a place [...]
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