Question 1

How long does it take to fly from O'Hare Airport to STL?

Accepted Answer

United Airlines operates a direct flight departing from O'Hare Intl. Airport (ORD) at 2:25PM and coming in to land at Lambert-St. Louis Intl. Airport (STL) at 3:45PM — a travel time of 1 hour and 20 minutes. Pick the best seat available, pack a few things to keep you busy and the time will zip by.

Question 2

Is it cheaper to buy a plane ticket from O'Hare Airport to STL last minute?

Accepted Answer

Being spontaneous is a terrific way to travel the globe, but it isn't necessarily the smartest way to score a bargain fare. It's better to book your ORD to Lambert-St. Louis Intl. Airport (STL) trip in advance rather than leaving it till the last minute. Based on flight pricing and demand studies in 2022, we have found that the best time to book domestic flights is between 28 – 35 days ahead of the departure date, and international flights three to four months in advance. We recommend saving that spontaneity for when you arrive in Lambert-St. Louis Intl. Airport (STL)!

Question 3

What airline has the least delays from ORD to STL?

Accepted Answer

If you'd rather not be stuck at the departure gate for hours — or worse, have your vacation plans ruined due to a flight delay — pick United Airlines. Around 96% of its O'Hare Airport to Lambert Field services land on schedule. You can look up your flight status before traveling to the airport through the free Expedia App. It also delivers real-time notifications about things like gate changes, luggage carousel numbers and how to get to your hotel. Everything you need to know is in your pocket with this handy travel companion.

Question 4

What airports do you fly into for St. Louis from Chicago?

Accepted Answer

Lambert-St. Louis Intl. Airport (STL), Spirit of St. Louis Airport (SUS) and St. Louis Downtown Airport (CPS) are your options when flying from Chicago to St. Louis. Roughly 19 kilometers northwest of the heart of St. Louis, Lambert-St. Louis Intl. Airport (STL) is the city's main hub. Think about factors like flight arrival and departure times and the distance to your hotel before choosing your airport. Busch Stadium and Gateway Arch are two top attractions to put on your itinerary when you reach your destination.

Question 5

What are the most popular departure times for flights from O'Hare Airport to Lambert Field?

Accepted Answer

For United Airlines flights making their way from O'Hare Airport to STL, the busiest time is between 6:00 PM - 7:00 PM. If you want to avoid any delays, book the earliest flight. This way you can escape the air traffic that builds up in the skyways later in the day.

Question 6

Can I change the date of my flight from O'Hare Intl. Airport (ORD) to Lambert-St. Louis Intl. Airport (STL)?

Accepted Answer

You can easily make changes to your ORD to Lambert Field trip via the Expedia Trips portal. Before you amend times or dates, review the ticket rules in your itinerary to find out what the carrier will allow you to do and if charges apply. Some airlines charge a change fee per person, in addition to any difference in fares. However, if you booked in the last 24 hours, you may be able to cancel for free and book new flights. You can also visit our Customer Service portal for further details and to chat with our Virtual Agent.

Origin airport	O'Hare Intl.
Destination airport	Lambert-St. Louis Intl.
Airlines serving	American Airlines, Delta, United
Roundtrip price	AED740
Distance	413 km
Average flight time	1 hour 24 mins

Popular airlines from Chicago O'Hare Intl. Airport (ORD) to St. Louis Lambert Intl. Airport (STL)

Be in the know

Book smarter

Find the right fit

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

Alternative airports near St. Louis

Frequently asked questions

Travel information

Explore a world of travel with Expedia

Top Flight Destinations

Airlines Operating

Airlines

Nearby Airports

AED830 Cheap Flights from Chicago (ORD) to St. Louis (STL)