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Cheap Flights from St. Louis to Chicago $203.4

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

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Interesting Facts About Flights from St. Louis to Chicago (STL to ORD)

Question : Will you do what it takes to get the absolute lowest-cost flight?
Answer : In December, Wednesday is your cheapest day to fly. Having flexibility in your travel plans means you can save, so be sure to plan ahead when possible.

Question : Who struggles with getting their passengers to O'Hare International Airport (ORD) on time?
Answer : If you decide to book your flight with Aeromexico, keep an eye on your departure time. Over the past month, Aeromexico flights from Lambert-St. Louis International Airport (STL) to O'Hare International Airport (ORD) are delayed 100% of the time.

Question : How long are most people's visits to Chicago when they fly in from Saint Louis?
Answer : Passengers from STL to ORD stay 11 days on average.

Question : Is there a day that has more departure times to choose from than other days?
Answer : When you're flying from STL to ORD, the day with the most flight times is Wednesday, with 297 different options. Saturday currently offers the fewest flight times with 200 options.

Question : Are prices changing frequently for this route?
Answer : Prices for STL to ORD do fluctuate a lot more than most. Remember, the sooner you book, the more you're able to save.

Question : How many departure times from Lambert-St. Louis International Airport (STL) to O'Hare International Airport (ORD) are there on a daily basis?
Answer : On average, you can expect to see 57 available departure times for this route. That is higher than the global average of 31.