Cheap Flights from St. Louis (SUS) to Memphis (MEM)

Popular airlines from St. Louis, MO (SUS-Spirit of St. Louis) to Memphis International Airport (MEM)

Find available prices by choosing your travel dates.
Flights from St. Louis (SUS) to Memphis (MEM)
Origin airport
Spirit of St. Louis
Destination airport
Memphis Intl.
Distance
252 mi

St. Louis to Memphis Flights

The cheapest times to fly from St. Louis to Memphis

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 Memphis are during the month of . You can find some of the cheapest flights from St. Louis to Memphis with Expedia's search tool and vast selection of airlines.

The best time to book a flight from St. Louis to Memphis

Sunday is one of the best days to book for cheap flights from St. Louis to Memphis: 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 Memphis

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 Memphis 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 Memphis 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 Memphis 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.

Frequently asked questions

Is it cheaper to buy a plane ticket from Spirit of St. Louis Airport (SUS) to Memphis Intl. Airport last minute?
Booking your trip from SUS to Memphis Intl. Airport (MEM) at the last minute could save you a pretty penny if you luck out and find a real bargain. However, airfares usually don’t get cheaper as the date of departure nears. If you hold off, flights could also be sold out or the best seats gone (because no one wants the middle seat). If you don’t want to risk it, book well in advance of the date you want to leave. In fact, some of the best deals are available on Expedia up to 12 months in advance. If your favorite airline hasn’t released its fares yet, check back regularly as deals are constantly updated on Expedia.
What airports do you fly into for Memphis from St. Louis?
From St. Louis, you can journey to Memphis through Memphis Intl. Airport (MEM), Tunica, MS (UTM-Tunica Municipal) and University, MS (UOX-University - Oxford). Research which hub works best for you before you make a decision. If you choose Memphis Intl. Airport (MEM), it’s roughly 8 mi southeast of the downtown area. Use the cash you save when booking your seat with Expedia to visit the city’s well-known attractions, such as Orpheum Theatre and FedEx Forum.
Can I change the date of my flight from Spirit of St. Louis Airport (SUS) to Memphis Intl. Airport (MEM)?
You can quickly make changes to your St. Louis Airport to Memphis Intl. Airport ticket via the Expedia Trips portal. Before you amend times or dates, read over the rules and restrictions in your itinerary to see what the airline will let you do and whether fees apply. Some carriers have a change fee per person, on top of any difference in prices. However, if you booked in the last 24 hours, you may be able to cancel for free and organize new flights. You can also find your way to our Customer Service portal to find the answers to your questions and to connect with our Virtual Agent.

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*Available to One Key members.