$117 Cheap Flights from Memphis (MEM) to St. Louis (STL)

View $117 flight on Mon, Oct 27, 2025Opens in a new window

Popular airlines from Memphis International Airport (MEM) to St. Louis Lambert Intl. Airport (STL)

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Cheap Flights from Memphis to St. Louis (MEM-STL)

Prices were available within the past 7 days and start at $117 for one-way flights and $251 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Thu, Dec 4 - Sat, Dec 6
MEM
Memphis
STL
St. Louis
$251 Roundtrip, found 6 days ago
$251
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Thu, Dec 4 from Memphis to St. Louis, returning Sat, Dec 6, priced at $251 found 6 days ago
Southwest Airlines
Thu, Dec 4 - Sat, Dec 6
MEM
Memphis
STL
St. Louis
$252 Roundtrip, found 6 days ago
$252
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Thu, Dec 4 from Memphis to St. Louis, returning Sat, Dec 6, priced at $252 found 6 days ago
Southwest Airlines
Thu, Dec 4 - Sat, Dec 6
MEM
Memphis
STL
St. Louis
$259 Roundtrip, found 6 days ago
$259
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Thu, Dec 4 from Memphis to St. Louis, returning Sat, Dec 6, priced at $259 found 6 days ago
Southwest Airlines
Thu, Dec 4 - Sat, Dec 6
MEM
Memphis
STL
St. Louis
$273 Roundtrip, found 6 days ago
$273
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Thu, Dec 4 from Memphis to St. Louis, returning Sat, Dec 6, priced at $273 found 6 days ago
Frontier Airlines
Mon, Sep 29 - Wed, Oct 1
MEM
Memphis
STL
St. Louis
$274 Roundtrip, found 5 hours ago
$274
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Mon, Sep 29 from Memphis to St. Louis, returning Wed, Oct 1, priced at $274 found 5 hours ago
Frontier Airlines
Mon, Sep 29 - Sat, Oct 4
MEM
Memphis
STL
St. Louis
$284 Roundtrip, found 5 hours ago
$284
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Mon, Sep 29 from Memphis to St. Louis, returning Sat, Oct 4, priced at $284 found 5 hours ago
Frontier Airlines
Thu, Sep 25 - Wed, Oct 1
MEM
Memphis
STL
St. Louis
$302 Roundtrip, found 3 hours ago
$302
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Thu, Sep 25 from Memphis to St. Louis, returning Wed, Oct 1, priced at $302 found 3 hours ago
United
Tue, Oct 21 - Thu, Oct 23
MEM
Memphis
STL
St. Louis
$307 Roundtrip, found 2 days ago
$307
Roundtrip
found 2 days ago
Select United flight, departing Tue, Oct 21 from Memphis to St. Louis, returning Thu, Oct 23, priced at $307 found 2 days ago
American Airlines
Tue, Oct 21 - Thu, Oct 23
MEM
Memphis
STL
St. Louis
$332 Roundtrip, found 2 days ago
$332
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Oct 21 from Memphis to St. Louis, returning Thu, Oct 23, priced at $332 found 2 days ago
Delta
Mon, Nov 24 - Thu, Nov 27
MEM
Memphis
STL
St. Louis
$472 Roundtrip, found 1 day ago
$472
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Nov 24 from Memphis to St. Louis, returning Thu, Nov 27, priced at $472 found 1 day ago

Find the cheapest month to fly from Memphis (MEM) to St. Louis (STL)

September is typically the cheapest month to fly

From $196 - $551 per traveler.

Frequently asked questions

How much does a flight from Memphis Intl. Airport (MEM) to Lambert-St. Louis Intl. Airport (STL) cost?
Snag a cheap one-way flight from $117 or cheap return flight from $251 from Memphis Intl. Airport (MEM) to Lambert-St. Louis Intl. Airport (STL) 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 Memphis Intl. Airport (MEM) to Lambert-St. Louis Intl. Airport (STL)?
December is the cheapest month to fly from MEM to STL. Traveling outside of peak seasons is often the key to scoring lower fares.
What is the cheapest airline that flies from Memphis Intl. Airport (MEM) to Lambert-St. Louis Intl. Airport (STL)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest MEM to STL flight.
How many flights per day from Memphis Intl. Airport (MEM) to Lambert-St. Louis Intl. Airport (STL)?
You'll have to hop on a flight with a layover when traveling from Memphis Intl. Airport (MEM) to Lambert-St. Louis Intl. Airport (STL). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to discover an option that works for you.
What day of the week has the most flights from MEM to STL?
Generally you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can vary depending on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What airline has the least delays from MEM to STL?
With 100% of flights generally landing on time, Delta Air Lines has the best on-time performance for direct flights from Memphis Intl. Airport (MEM) to Lambert-St. Louis Intl. Airport (STL). To check your flight status and get notifications if anything changes, simply head to the Expedia App.
What is the best time to fly from Memphis Intl. Airport (MEM) to Lambert-St. Louis Intl. Airport (STL)?
To avoid possible delays on the Memphis Intl. Airport (MEM) to Lambert-St. Louis Intl. Airport (STL) route, travel before 3 PM. Departures after this hour are 22% more likely to be canceled.**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 Memphis Intl. Airport (MEM) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Waiting until just before your departure to book your flight from MEM to STL often results in higher prices. Although you may find some last-minute deals, there's no guarantee. Keep your travel schedule open for a better chance of scoring a bargain.
Is it cheaper to book a MEM to STL flight and hotel package?
You'll typically save money by booking a MEM to STL flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. Once you've chosen your ideal accommodations and flights, consider adding extras like car rentals, activities and tours.
Can I cancel or change the date of my flight from Memphis Intl. Airport (MEM) to Lambert-St. Louis Intl. Airport (STL)?
If you booked your MEM to STL flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more details.

Travel information

Travel information

Origin airport
Memphis Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Roundtrip price
$251
Distance
256 mi

Book with confidence

Book with confidence

Memphis to St. Louis Flights

The cheapest times to fly from Memphis to St. Louis

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

 

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

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

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 Memphis to St. Louis in 2025. You can also book with separate airlines for your outbound and return journeys, from $117 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 Memphis to St. Louis 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 Memphis to St. Louis 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.

 

Memphis to St. Louis Flights

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Explore a world of travel with Expedia

*Available to One Key members.