What is the cheapest airline that flies from Memphis to Lambert-St Louis?

Frontier, United Airlines, and Southwest are the most popular carriers operating from Memphis to Lambert-St Louis

What airlines fly to St. Louis?

American Airlines, Southwest and Southern / Mokulele are the top three most popular airlines that fly to St. Louis from Memphis according to our data. American Airlines is the first choice among our users, with 39% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 3 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Memphis Airport to Lambert-St Louis Airport?

Prices for flights from Memphis Airport to Lambert-St Louis Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Memphis Airport to Lambert-St Louis Airport?

There are 2 operators available for flights from Memphis Airport to Lambert-St Louis Airport as of November 2025.

How old do you have to be to fly from Memphis Airport to Lambert-St Louis Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Memphis Airport to Lambert-St Louis Airport.

What documentation or ID do you need to fly to Lambert-St Louis Airport?

The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$107 Cheap Flights from Memphis to St. Louis in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Memphis to St. Louis

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:07 pm - 10:14 amMEM-STL

14h 07m1 stop

7:43 pm - 7:12 pmSTL-MEM

23h 29m1 stop

$121Frontier

Find Deal

Thu, Dec 4 - Sat, Dec 6

9:17 pm - 10:14 amMEM-STL

12h 57m2 stops

7:43 pm - 7:12 pmSTL-MEM

23h 29m1 stop

$195Multiple Airlines

Find Deal

Fri, Dec 5 - Sat, Dec 6

8:07 pm - 8:59 amMEM-STL

12h 52m2 stops

7:43 pm - 7:12 pmSTL-MEM

23h 29m1 stop

$212Frontier

Find Deal

Thu, Dec 4 - Sat, Dec 6

9:16 pm - 10:14 amMEM-STL

36h 58m2 stops

3:30 pm - 6:47 pmSTL-MEM

27h 17m1 stop

$315Multiple Airlines

Find Deal

Mon, Dec 1 - Mon, Dec 8

5:30 am - 10:59 pmMEM-STL

17h 29m1 stop

11:55 am - 6:58 pmSTL-MEM

7h 03m1 stop

$346American Airlines

Find Deal

Wed, Jan 28 - Sat, Jan 31

8:15 am - 4:30 pmMEM-STL

8h 15m2 stops

7:00 am - 1:00 pmSTL-MEM

6h 00m1 stop

$352Southwest

Find Deal

Wed, Jan 28 - Sat, Jan 31

5:15 am - 12:37 pmMEM-STL

7h 22m1 stop

4:46 pm - 11:59 pmSTL-MEM

7h 13m1 stop

$361American Airlines

Find Deal

Wed, Nov 26 - Wed, Nov 26

3:00 pm - 10:10 pmMEM-STL

7h 10m2 stops

6:25 am - 1:20 pmSTL-MEM

6h 55m2 stops

$367Southwest

Find Deal

Thu, Dec 4 - Sat, Dec 6

3:01 pm - 7:17 pmMEM-STL

4h 16m1 stop

6:30 am - 10:56 amSTL-MEM

4h 26m1 stop

$394United Airlines

Find Deal

Fri, Dec 5 - Sat, Dec 6

5:00 pm - 10:22 pmMEM-STL

5h 22m1 stop

6:15 am - 1:59 pmSTL-MEM

7h 44m1 stop

$497United Airlines

Find Deal

Mon, Nov 17 - Fri, Nov 21

American Airlines flights from Memphis to St. Louis

Our best American Airlines deals on Memphis to St. Louis flight tickets

American Airlines

Jan 28

MEM5:30 amMemphis

17h 29m

1 stop

STL10:59 pmLambert-St Louis

Jan 31

STL11:55 amLambert-St Louis

7h 03m

1 stop

MEM6:58 pmMemphis

$346

Find similar

American Airlines

Nov 26

MEM5:15 amMemphis

7h 22m

1 stop

STL12:37 pmLambert-St Louis

Nov 26

STL4:46 pmLambert-St Louis

7h 13m

1 stop

MEM11:59 pmMemphis

$361

Find similar

American Airlines

Mar 31

MEM7:14 amMemphis

14h 34m

1 stop

STL9:48 pmLambert-St Louis

Apr 1

STL6:05 amLambert-St Louis

14h 20m

1 stop

MEM8:25 pmMemphis

$437

Find similar

Southwest flights from Memphis to St. Louis

Our best Southwest deals on Memphis to St. Louis flight tickets

Southwest

Jan 28

MEM8:15 amMemphis

8h 15m

2 stops

STL4:30 pmLambert-St Louis

Jan 31

STL7:00 amLambert-St Louis

6h 00m

1 stop

MEM1:00 pmMemphis

$352

Find similar

Southwest

Dec 4

MEM3:00 pmMemphis

7h 10m

2 stops

STL10:10 pmLambert-St Louis

Dec 6

STL6:25 amLambert-St Louis

6h 55m

2 stops

MEM1:20 pmMemphis

$367

Find similar

Southwest

Dec 5

MEM6:00 amMemphis

8h 25m

2 stops

STL2:25 pmLambert-St Louis

Dec 6

STL12:50 pmLambert-St Louis

7h 50m

2 stops

MEM8:40 pmMemphis

$404

Find similar

Fly from

Fly to

Route

Depart

Return

Price

MemphisSt. Louis

MEM - STL

MEMSTL

Memphis

Thu 12/4

8:07 pm-10:14 am

1 stop14h 07m

Lambert-St Louis

Sat 12/6

7:43 pm-7:12 pm

1 stop23h 29m

$121

MemphisSt. Louis

MEM - STL

MEMSTL

Memphis

Fri 12/5

9:17 pm-10:14 am

2 stops12h 57m

Lambert-St Louis

Sat 12/6

7:43 pm-7:12 pm

1 stop23h 29m

$195

MemphisSt. Louis

MEM - STL

MEMSTL

Memphis

Thu 12/4

8:07 pm-8:59 am

2 stops12h 52m

Lambert-St Louis

Sat 12/6

7:43 pm-7:12 pm

1 stop23h 29m

$212

MemphisSt. Louis

MEM - STL

MEMSTL

Memphis

Mon 12/1

9:16 pm-10:14 am

2 stops36h 58m

Lambert-St Louis

Mon 12/8

3:30 pm-6:47 pm

1 stop27h 17m

$315

MemphisSt. Louis

MEM - STL

MEMSTL

Memphis

Wed 1/28

5:30 am-10:59 pm

1 stop17h 29m

Lambert-St Louis

Sat 1/31

11:55 am-6:58 pm

1 stop7h 03m

$346

MemphisSt. Louis

MEM - STL

MEMSTL

Memphis

Wed 1/28

8:15 am-4:30 pm

2 stops8h 15m

Lambert-St Louis

Sat 1/31

7:00 am-1:00 pm

1 stop6h 00m

$352

MemphisSt. Louis

MEM - STL

MEMSTL

Memphis

Wed 11/26

5:15 am-12:37 pm

1 stop7h 22m

Lambert-St Louis

Wed 11/26

4:46 pm-11:59 pm

1 stop7h 13m

$361

MemphisSt. Louis

MEM - STL

MEMSTL

Memphis

Thu 12/4

3:00 pm-10:10 pm

2 stops7h 10m

Lambert-St Louis

Sat 12/6

6:25 am-1:20 pm

2 stops6h 55m

$367

MemphisSt. Louis

MEM - STL

MEMSTL

Memphis

Fri 12/5

3:01 pm-7:17 pm

1 stop4h 16m

Lambert-St Louis

Sat 12/6

6:30 am-10:56 am

1 stop4h 26m

$394

MemphisSt. Louis

MEM - STL

MEMSTL

Memphis

Mon 11/17

5:00 pm-10:22 pm

1 stop5h 22m

Lambert-St Louis

Fri 11/21

6:15 am-1:59 pm

1 stop7h 44m

$497

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first

How to get the cheapest flight ticket from Memphis to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to St. Louis?

In general, May is the cheapest month to fly from Memphis to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $363. The month of September is another great option to travel to St. Louis, with average flight prices from Memphis averaging around $370.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Wednesday when prices can be found for as low as $378. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around $596. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Memphis in the evening is the least expensive time of day to depart. momondo users have found prices as low as $253 when looking at flights departing in the evening. In the morning is when there is more demand to fly to St. Louis, so prices are often more expensive at around $456 per ticket.

How have Memphis to St. Louis flight prices changed over time?

As of November 2025, prices for Memphis to St. Louis flights are approximately 3% cheaper when compared to flights at the same time last year.

When to book flights from Memphis to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Memphis to St. Louis according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Memphis to St. Louis (MEM to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Memphis to St. Louis

Direct flights	None

There are no direct flights from Memphis to St. Louis. There are no popular flight routes from Memphis to St. Louis.

Search flight deals

How far is Memphis to Lambert-St Louis by plane?
Lambert-St Louis is 240.3 mi away from Memphis. In terms of flight time, this usually takes a little over 4h 16m.
When did momondo last update prices for flights from Memphis Airport to Lambert-St Louis Airport?
Prices for flights from Memphis Airport to Lambert-St Louis Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Memphis Airport to Lambert-St Louis Airport?
There are 2 operators available for flights from Memphis Airport to Lambert-St Louis Airport as of November 2025.
How old do you have to be to fly from Memphis Airport to Lambert-St Louis Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Memphis Airport to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Memphis to St. Louis?
momondo data reveals that the most frequently booked airline on the route from Memphis to St. Louis is American Airlines, representing 52% of all bookings. The subsequent popular airline is Southwest at 48%.

Best airlines flying from Memphis to St. Louis

Compare and see reviews for airlines that fly from Memphis to St. Louis with momondo

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $231	Free Cancellation	Rating 8.0 4,238 reviews		Search Southwest flights
American Airlines	PriceFrom $340	Free Cancellation	Rating 7.2 11,038 reviews		Search American Airlines flights

St. Charles

Chesterfield

Hermann

Fairview Heights

Florissant

Maryland Heights

O'Fallon

Wentzville

Fenton

Collinsville

St. Peters

Alton

Farmington

Festus

Glencoe

Edwardsville

Clayton

Eureka

Litchfield

Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal from Memphis to St. Louis?

Finding the right flight to St. Louis from Memphis is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to St. Louis quick and easy, saving you time and money.

Can I find flights from Memphis to St. Louis with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Memphis to St. Louis flights to just show those with flexible booking policies.

How can momondo help me find flights from Memphis to St. Louis?

Once you have performed a search for Memphis to St. Louis flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Memphis to St. Louis right now. Can momondo alert me if prices change?

If you are simply researching potential flights to St. Louis, momondo offers a useful price alert feature which will track prices for flights to St. Louis from Memphis and alert you when they change.