Cheap Flights from Chicago to Saint Louis Starting at $47

Helping travelers to find the best flight offers

Cheapest flights from Chicago to Saint Louis

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 Chicago to Saint Louis. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.

Airfare from Chicago to Saint Louis by month

The cost of a one-way flight from Chicago to Saint Louis ranges from $49 (January 2026) to $82 (October 2025). On average, the ticket price is about $65$82.

Airlines operating on route

Direct Flights from Chicago to Saint Louis

A direct flight is the most convenient and comfortable way to fly from Chicago to Saint Louis, despite the fact that sometimes flights with transfers can cost significantly less.

Schedule of direct flights from Chicago to Saint Louis

A direct flight is the easiest way to get to your destination. The following airlines operate non-stop flights from Chicago to Saint Louis:

Chicago airports overview

Saint Louis airports overview

Frequently asked questions (FAQ)

Answers to questions about the route that travelers are most interested in.

Special offers and sales on air tickets from Chicago to Saint Louis

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.

Alternative routes