₹6,450 Cheap Flights from Chicago (ORD) to St. Louis (STL)

The lowest price advertised for a round-trip flight between O’Hare Intl. Airport (ORD) and STL is ₹11,965. But you better act quick. This price is taken from fares quoted within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

When it comes to cancellation fees, every airline has its own terms and conditions. If you decide to cancel your trip, head to our Customer Service Portal.

Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for O’Hare Intl. Airport (ORD) to St. Louis Lambert International Airport flights, you’ll see a “no change fees” filter for you to select.

You might not get through a whole movie on this flight — it’s just 420 kilometres from Chicago to St. Louis. Sit down, order a snack and you’ll be in St. Louis in no time.

United Airlines (UA) is one of the preferred choices for many travellers flying between ORD and St. Louis Lambert International Airport. Choose from the 208 flights it offers on this route each month. Operating 117 flights a month on this route, American Airlines (AA) is another good choice.

Booking last minute from O’Hare Intl. Airport (ORD) to St. Louis Lambert International Airport can be hit-or-miss. It is possible to find a bargain, but then again, you could miss out! If you’d prefer to play it safe and start your trip planning early on, Expedia compares flight deals up to 12 months in advance. Just keep in mind that not all airlines advertise their prices that far in advance. Our suggestion? Check back often as updates are made frequently.