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Cheap Flights from Chicago (ORD) to St. Louis (STL) from £48

Cheap Flights from Chicago (ORD) to St. Louis (STL)

Prices were available within the past 7 days and starts at £48 for one-way flights and £97 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
American Airlines
American Airlines
Delta
American Airlines
American Airlines
American Airlines
United
American Airlines
American Airlines
United
American Airlines
American Airlines
American Airlines
American Airlines
Delta
American Airlines
Delta
American Airlines
American Airlines
Flight from Chicago to St. Louis route information
Origin AirportO'Hare Intl.
Destination AirportLambert-St. Louis Intl.
Airlines ServingAmerican Airlines, Cape Air, United
Flight Price£96
Distance413 km

Frequently asked questions

Frequently asked questions

Compare flights from Chicago to St. Louis easily and book in confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Chicago to St. Louis. Operating between them 58 flights per day, 20 airlines cover the route. And American Airlines, Qatar Airways, Air Canada, JAL, Austrian, Aer Lingus, Air New Zealand, United Airlines, Alaska Airlines, Cape Air, Royal Jordanian, Iberia, ANA, Lufthansa, Gulf Air, British Airways fly direct, getting you to Lambert-St. Louis Intl. in just 1hours. If you have a preferred carrier, use our advanced search tool to find the right flight from O'Hare Intl. to Lambert-St. Louis Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from O'Hare Intl. (ORD) to Lambert-St. Louis Intl. (STL) 

The easiest way to view the best deals on flights from Chicago to St. Louis today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from O'Hare Intl. to Lambert-St. Louis Intl. start at just £97 and range up to £169.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Chicago and St. Louis
  • booking your flight during October, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Chicago to St. Louis flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from O'Hare Intl. to Lambert-St. Louis Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.