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Cheap Flights from Chicago to St. Louis $197.8

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

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

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

Question : For ORD to STL, how many departure times are there on a given day?
Answer : On average, you can expect to see 57 available departure times for this route. Compared to the average route with 31 flight times, you'll have more choices than most.

Question : Is there a day that has more departure times to choose from than other days?
Answer : Wednesday has the most flight times for Chicago to Saint Louis with 299.

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

Question : How long are most people's visits to Saint Louis when they fly in from Chicago?
Answer : Of course you're not most people, but if you were, you'd stay roughly seven days.

Question : What is the likelihood your flight will be on time for this route?
Answer : Passengers are currently getting to their destination on schedule 67% of the time, which ranks in the bottom half across all routes. When a flight is late, it averages between 20-30 minutes.

Question : Which airline is least likely to get you to STL on time?
Answer : Delta Air Lines flights from ORD to STL are late 100% of the time. If you should choose this airline, be sure to track the flight status to stay on top of the departure time.

Question : Do prices change more for this route than others?
Answer : Prices are fluctuating much more for this route than most routes. Remember, the sooner you book, the more you're able to save.