Cheap Flights from St. Louis (STL) to Rock Sound (RSD)

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Rock Sound (RSD-Rock Sound Intl.)

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Rock Sound Intl. Airport (RSD) cost?
Snag a cheap one-way flight or cheap return flight from Lambert-St. Louis Intl. Airport (STL) to Rock Sound Intl. Airport (RSD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Rock Sound Intl. Airport (RSD)?
Planning your getaway for may help you find better deals, as it's the cheapest month for flights between STL and RSD. You'll usually find the lowest fares during off-peak months.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Rock Sound Intl. Airport (RSD)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll fly you from STL to RSD. Then, sort your results by "Price (lowest to highest)" to snap up the best deal available.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Rock Sound Intl. Airport (RSD)?
There aren't any daily nonstop flights from Lambert-St. Louis Intl. Airport (STL) to Rock Sound Intl. Airport (RSD). But you can opt for flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from STL to RSD?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Rock Sound Intl. Airport (RSD)?
To touch down at Rock Sound Intl. Airport (RSD) without delays, book a flight that leaves Lambert-St. Louis Intl. Airport (STL) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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 Lambert-St. Louis Intl. Airport (STL) to Rock Sound Intl. Airport (RSD) last-minute?
Booking your ticket from STL to RSD right before your journey is generally more expensive. However, if you're flexible with your schedule, you could snag a cheap last-minute fare.
Is it cheaper to book a STL to RSD flight and hotel package?
You'll typically save money by securing a STL to RSD flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. Once you've selected your preferred flights and accommodations, consider adding extras such as car rentals, activities and tours.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Rock Sound Intl. Airport (RSD)?
It's usually possible to reschedule or cancel your STL to RSD flight. However, if it's been more than 24 hours since booking, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Rock Sound Intl.
Distance
1265 mi

Book with confidence

St. Louis to Rock Sound Flights

The cheapest times to fly from St. Louis to Rock Sound

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to Rock Sound are during the month of . You can find some of the cheapest flights from St. Louis to Rock Sound with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Rock Sound

Sunday is one of the best days to book for cheap flights from St. Louis to Rock Sound: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to Rock Sound

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to Rock Sound in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to Rock Sound flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to Rock Sound airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

St. Louis to Rock Sound Flights
*Available to One Key members.