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$99+ Cheap flights from Memphis to St. Louis (MEM - STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
MEM — STL
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Memphis to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Memphis (MEM) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 14, 2025.

Round-trip from

$197
(Southwest)

One-way from

$99
(United Airlines)

Popular in

January

Cheapest in

September

Average price

$356
From Memphis to Lambert-St Louis
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One-way flight from Memphis to Lambert-St Louis
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Highest demand for flights based on searches. 21% potential increase in price ($126 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Memphis to St. Louis

Cheapest flights from Memphis to St. Louis
Explore the most affordable flight options available from Memphis to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Southwest deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/137:50 amMEM - STL
1 stop6h 25mSouthwest
Mon 9/155:25 amSTL - MEM
1 stop4h 05mSouthwest
Deal found 8/13$197
This American Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/159:31 amMEM - STL
1 stop10h 54mAmerican Airlines
Wed 9/177:23 amSTL - MEM
1 stop9h 25mAmerican Airlines
Deal found 8/14$246
This United Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/207:30 amMEM - STL
1 stop6h 57mUnited Airlines
Fri 10/245:28 pmSTL - MEM
1 stop4h 20mUnited Airlines
Deal found 8/14$290
This American Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/410:27 amMEM - STL
1 stop10h 05mAmerican Airlines
Sun 9/77:23 amSTL - MEM
1 stop9h 25mAmerican Airlines
Deal found 8/14$298
This Southwest deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/13:50 pmMEM - STL
1 stop8h 35mSouthwest
Tue 12/25:45 amSTL - MEM
1 stop6h 55mSouthwest
Deal found 8/13$323
This Kiwi.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/43:01 pmMEM - STL
2 stops18h 05mMultiple Airlines
Sun 9/71:52 pmSTL - MEM
1 stop9h 58mMultiple Airlines
Deal found 8/14$339
This Kiwi.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/207:00 amMEM - STL
1 stop10h 10mMultiple Airlines
Fri 10/2411:32 amSTL - MEM
2 stops11h 36mMultiple Airlines
Deal found 8/14$359

Cheapflights Fare Finder

 
Customize your flight search to find flights from Memphis to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from Memphis to St. Louis that are best for you.

Fly from

Memphis

Fly to

St. Louis

Route

Depart

Return

Price

MemphisSt. Louis

MEM - STL

MEMSTL

Memphis

Sat 9/13

7:50 am-2:15 pm

1 stop6h 25m

Lambert-St Louis

Mon 9/15

5:25 am-9:30 am

1 stop4h 05m

$197

MemphisSt. Louis

MEM - STL

MEMSTL

Memphis

Mon 9/15

9:31 am-8:25 pm

1 stop10h 54m

Lambert-St Louis

Wed 9/17

7:23 am-4:48 pm

1 stop9h 25m

$246

MemphisSt. Louis

MEM - STL

MEMSTL

Memphis

Mon 10/20

7:30 am-2:27 pm

1 stop6h 57m

Lambert-St Louis

Fri 10/24

5:28 pm-9:48 pm

1 stop4h 20m

$290

MemphisSt. Louis

MEM - STL

MEMSTL

Memphis

Thu 9/4

10:27 am-8:32 pm

1 stop10h 05m

Lambert-St Louis

Sun 9/7

7:23 am-4:48 pm

1 stop9h 25m

$298

MemphisSt. Louis

MEM - STL

MEMSTL

Memphis

Mon 12/1

3:50 pm-12:25 am

1 stop8h 35m

Lambert-St Louis

Tue 12/2

5:45 am-12:40 pm

1 stop6h 55m

$323

MemphisSt. Louis

MEM - STL

MEMSTL

Memphis

Thu 9/4

3:01 pm-9:06 am

2 stops18h 05m

Lambert-St Louis

Sun 9/7

1:52 pm-11:50 pm

1 stop9h 58m

$339

MemphisSt. Louis

MEM - STL

MEMSTL

Memphis

Fri 9/26

10:24 am-8:32 pm

1 stop10h 08m

Lambert-St Louis

Sun 9/28

3:56 pm-11:59 pm

1 stop8h 03m

$339

MemphisSt. Louis

MEM - STL

MEMSTL

Memphis

Mon 10/20

7:00 am-5:10 pm

1 stop10h 10m

Lambert-St Louis

Fri 10/24

11:32 am-11:08 pm

2 stops11h 36m

$359

MemphisSt. Louis

MEM - STL

MEMSTL

Memphis

Thu 9/4

7:30 am-2:19 pm

1 stop6h 49m

$99

MemphisSt. Louis

MEM - STL

MEMSTL

Memphis

Thu 9/4

7:00 am-12:00 pm

3 stops29h 00m

$219

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Best time to book a flight from Memphis to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Memphis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Memphis to St. Louis

What is the cheapest month to book a flight from Memphis to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Memphis to St. Louis (average of $311). Flying from Memphis to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MEM to STL?

Find hourly flight availability from Memphis to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

It’s typically best to fly out from Memphis to St. Louis in the evening. Doing so could potentially save you 45% on the flight price compared to flying in the morning, which is usually more expensive.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated August 14, 2025.
Peruse reviews from past customers who have flown with Southwest and American Airlines from Memphis to St. Louis to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,244 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Memphis to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Memphis to St. Louis round-trip?

    Currently priced at $231, Southwest will fly you from Memphis to St. Louis and back. In addition to Southwest, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on American Airlines for as low as $340. You may be able to fly from Memphis to St. Louis for 48% less than the average price by searching for these airlines.

  • Can I find deals for flights from Memphis to St. Louis that include hotel bookings?

    Yes. In addition to deals on Memphis to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Memphis to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Memphis to St. Louis.

  • Can I find deals for business class flights from Memphis to St. Louis?

    Yes. Cheapflights offers flight deals from Memphis to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Memphis to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Memphis to St. Louis (average of $311). Flying from Memphis to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Chesterfield
Farmington
Festus

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Top 2 airlines flying from Memphis to St. Louis

Discover the top 2 airlines that operate flights from Memphis to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$231Average$421FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$340Average$579FlexibilityNo cancel feeOn-time71%

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