Find cheap flights from St. Louis to Chicago

All the following airlines offer inflight Wi-Fi service on the St. Louis to Chicago flight route: American Airlines, Delta, Lufthansa, Alaska Airlines, United Airlines, Air Canada, and SWISS.

The Boeing 737-800 is the aircraft model that flies most regularly on the St. Louis to Chicago flight route.

oneworld, and Star Alliance are the airline alliances operating flights between St. Louis and Chicago, with oneworld being the most commonly used for this route.

There are direct flights from St. Louis to Chicago on a daily basis.

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Chicago.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago from St. Louis is likely to change within 7 days, so travellers know whether to wait or book now.

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Chicago with an airline and back to St. Louis with another airline.

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.