Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Saint Louis to Chicago. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.
A non-stop flight is the most convenient and comfortable way to fly from Saint Louis to Chicago, despite the fact that sometimes flights with transfers can cost significantly less.
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Answers to questions about the route that travelers are most interested in.
We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.
There are most likely no direct flights on the Saint Louis — Chicago route
Saint Louis — Chicago
09/24/2026
Departure
Direct flight
UA1920
starting at $193
Saint Louis — Chicago
09/27/2026
Departure
Direct flight
UA541
starting at $192
Saint Louis — Chicago
07/09/2026
Departure
Direct flight
UA1639
starting at $127
Saint Louis — Chicago
09/12/2026
Departure
Direct flight
UA2779
starting at $97
The route Saint Louis — Chicago is served by several airlines: United Airlines, Southwest Airlines, and Frontier Airlines. This gives passengers more freedom in choosing flights. You can consider not only the price but also schedules, baggage policies, and onboard service. Our service compares all offers so you can find tickets from $97 and choose the most convenient option. Thanks to airline competition, you may also find promotional fares or special offers, helping you save even more. Plan your trip in advance and choose the best flights without overpaying.
The cheapest one-way flight from Saint Louis to Chicago departs on 09/12/2026, is operated by United Airlines and costs $97
There is no information about the cheapest roundtrip flight from Saint Louis to Chicago
Fastest flight from Saint Louis to Chicago takes 1h 5m
There are direct flights on this route 3 days a week: Su, Th, and Sa
The distance between Saint Louis and Chicago is 422km (262 miles). There are 69 direct flights from Saint Louis to Chicago. Saint Louis and Chicago are in the same time zone. Flights from Saint Louis begin at 5:35 AM. The latest flight from Saint Louis departs at 9:40 PM
The cheapest flight ticket from Saint Louis to Chicago according to data for the last 48 hours costs $97
Often the best time to buy tickets from Saint Louis to Chicago is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from Saint Louis to Chicago can be found flying in these months: September, July.
The fastest flights from Saint Louis to Chicago start from 1 hour 5 minutes in the air.
The following airlines operate direct flights on the route Saint Louis — Chicago: United Airlines
The minimum one-way ticket price from Saint Louis to Chicago is $97 (September 2026), while the maximum is $127 (July 2026). On average, a ticket costs $112–$127.