Cheap Flights from Rochester (ROC) to St. Louis (CPS)

Popular airlines from Greater Rochester Intl. Airport (ROC) to St. Louis, MO (CPS-St. Louis Downtown)

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Alternative airports near St. Louis

Prices were available within the past 7 days. Prices and availability are subject to change.

Frequently asked questions

How much does a flight from Greater Rochester Intl. Airport (ROC) to St. Louis Downtown Airport (CPS) cost?
Get a cheap one-way flight or cheap return flight from Greater Rochester Intl. Airport (ROC) to St. Louis Downtown Airport (CPS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Greater Rochester Intl. Airport (ROC) to St. Louis Downtown Airport (CPS)?
is the least expensive month to fly from ROC to CPS. Avoiding peak travel times is often the key to finding better fares.
What is the cheapest airline that flies from Greater Rochester Intl. Airport (ROC) to St. Louis Downtown Airport (CPS)?
Use the filter tool on Expedia to compare different airlines and find the cheapest carrier that'll take you from ROC to CPS. Then, sort your results by "Price (lowest to highest)" to pick up a great deal.
How many flights per day from Greater Rochester Intl. Airport (ROC) to St. Louis Downtown Airport (CPS)?
There are no daily direct flights available from Greater Rochester Intl. Airport (ROC) to St. Louis Downtown Airport (CPS). But you can choose flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be soaring above the clouds in no time at all.
What day of the week has the most flights from ROC to CPS?
Usually you'll find the largest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can vary depending on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Greater Rochester Intl. Airport (ROC) to St. Louis Downtown Airport (CPS)?
To avoid possible delays on the Greater Rochester Intl. Airport (ROC) to St. Louis Downtown Airport (CPS) route, travel before 3 PM. Flights after this time have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Greater Rochester Intl. Airport (ROC) to St. Louis Downtown Airport (CPS) last-minute?
Booking your ticket from ROC to CPS right before your journey is generally more expensive. But if you're flexible with your schedule, you could land a cheap last-minute fare.
Is it cheaper to book a ROC to CPS flight and hotel package?
Compared with arranging flights and hotels separately, booking a ROC to CPS flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one convenient place takes the hassle out of planning your trip. Just pick your flights and select from our wide range of stays, then personalize your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Greater Rochester Intl. Airport (ROC) to St. Louis Downtown Airport (CPS)?
If you reserved your ROC to CPS flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Greater Rochester Intl.
Destination airport
St. Louis Downtown
Distance
723 mi

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