Cheap flights from San Antonio to St. Louis (SAT - STL)

SAT — STL
Dec 5 — Dec 121

The best prices from San Antonio to Lambert-St Louis are usually found in January or November, booked 27 days in advance, depart on a Saturday or Wednesday and return on a Wednesday

How to find the cheapest flight from San Antonio (SAT) to St. Louis (STL)

All the information you need to plan the best SAT to STL flight in 2022: compare San Antonio to St. Louis flight prices with the expected peak season, weather and rainfall in St. Louis.

SAT - STL

Price

$217 - $514

STL

Temperature

32 - 80.6 °F

STL

Rainfall

2.2 - 4.7 inches

Popular inJulyHigh demand for flights, 23% potential price rise
Cheapest inJanuaryBest time to find cheap flights, 45% potential price drop
Round-trip from$217From San Antonio to Lambert-St Louis
One-way from$89One-way flight from San Antonio to Lambert-St Louis

What is the cheapest day to fly round-trip from San Antonio to St. Louis?

Flights from San Antonio to St. Louis are found to be more expensive on Thursday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to St. Louis.

How far in advance should I book a flight from San Antonio to St. Louis?

To save on the cost of your flight from San Antonio to St. Louis, book at least 27 days before your planned departure. Booking around this time can save you about 70% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $380 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $533.

What is the cheapest month to fly from San Antonio to St. Louis?

Flights from San Antonio to St. Louis lean towards being more expensive in July. Prices are generally better when you fly from San Antonio to St. Louis in January, with the cheapest ticket starting at $181.

When is the cheapest time to fly from San Antonio to St. Louis (SAT - STL)?

When flying from San Antonio to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 38% versus a flight in the morning.

Cheap flights from San Antonio to St. Louis in November, December 2022

The best prices found for SAT to STL flights for November, December
Nov 29 - Dec 6
SAT

San Antonio

STL

Lambert-St Louis

1 stop

13h 29m
STL

Lambert-St Louis

SAT

San Antonio

1 stop

17h 43m
$160

Frontier

Pick Dates

Deal found 11/28

Dec 6 - Dec 13
SAT

San Antonio

STL

Lambert-St Louis

1 stop

16h 07m
STL

Lambert-St Louis

SAT

San Antonio

1 stop

17h 43m
$165

Frontier

Pick Dates

Deal found 11/29

Nov 29 - Nov 30
SAT

San Antonio

STL

Lambert-St Louis

1 stop

16h 12m
STL

Lambert-St Louis

SAT

San Antonio

1 stop

22h 44m
$171

Frontier

Pick Dates

Deal found 11/27

San Antonio to St. Louis 2022 flight deals

Cheap flights to St. Louis from San Antonio found for this year
Nov 29 - Dec 6
SAT

San Antonio

STL

Lambert-St Louis

1 stop

13h 29m
STL

Lambert-St Louis

SAT

San Antonio

1 stop

17h 43m
$160

Frontier

Pick Dates

Deal found 11/28

Dec 6 - Dec 13
SAT

San Antonio

STL

Lambert-St Louis

1 stop

16h 07m
STL

Lambert-St Louis

SAT

San Antonio

1 stop

17h 43m
$165

Frontier

Pick Dates

Deal found 11/29

Nov 29 - Nov 30
SAT

San Antonio

STL

Lambert-St Louis

1 stop

16h 12m
STL

Lambert-St Louis

SAT

San Antonio

1 stop

22h 44m
$171

Frontier

Pick Dates

Deal found 11/27

Cheap Frontier flights from San Antonio to St. Louis

Jan 21 - Jan 28
SAT

San Antonio

STL

Lambert-St Louis

1 stop

13h 48m
STL

Lambert-St Louis

SAT

San Antonio

1 stop

13h 28m
$164

Frontier

Pick Dates

Deal found 11/27

Jan 6 - Jan 8
SAT

San Antonio

STL

Lambert-St Louis

1 stop

12h 12m
STL

Lambert-St Louis

SAT

San Antonio

1 stop

15h 02m
$165

Frontier

Pick Dates

Deal found 11/29

Jan 19 - Jan 21
SAT

San Antonio

STL

Lambert-St Louis

1 stop

12h 12m
STL

Lambert-St Louis

SAT

San Antonio

1 stop

8h 26m
$168

Frontier

Pick Dates

Deal found 11/28

Cheap American Airlines flights from San Antonio to St. Louis

Dec 15 - Dec 18
SAT

San Antonio

STL

Lambert-St Louis

1 stop

4h 04m
STL

Lambert-St Louis

SAT

San Antonio

1 stop

5h 53m
$334

American Airlines

Pick Dates

Deal found 11/30

Dec 12 - Dec 18
SAT

San Antonio

STL

Lambert-St Louis

2 stops

15h 17m
STL

Lambert-St Louis

SAT

San Antonio

1 stop

5h 53m
$352

American Airlines

Pick Dates

Deal found 11/27

Dec 22 - Dec 29
SAT

San Antonio

STL

Lambert-St Louis

1 stop

4h 04m
STL

Lambert-St Louis

SAT

San Antonio

1 stop

3h 59m
$378

American Airlines

Pick Dates

Deal found 11/29

Last minute flights from San Antonio to St. Louis

Late deals on return flights to St. Louis from San Antonio, departing today and this week
Dec 6 - Dec 13
SAT

San Antonio

STL

Lambert-St Louis

1 stop

16h 07m
STL

Lambert-St Louis

SAT

San Antonio

1 stop

17h 43m
$165

Frontier

Pick Dates

Deal found 11/29

Dec 9 - Dec 12
SAT

San Antonio

STL

Lambert-St Louis

1 stop

13h 13m
STL

Lambert-St Louis

SAT

San Antonio

1 stop

20h 21m
$184

Frontier

Pick Dates

Deal found 11/28

Dec 6 - Dec 7
SAT

San Antonio

STL

Lambert-St Louis

1 stop

14h 25m
STL

Lambert-St Louis

SAT

San Antonio

1 stop

20h 35m
$202

Multiple Airlines

Pick Dates

Deal found 11/28

One-way flights to St. Louis from San Antonio

The cheapest one-way flights from San Antonio to St. Louis
Dec 7
SAT

San Antonio

STL

Lambert-St Louis

1 stop

18h 37m
$66

Frontier

Pick Dates

Deal found 11/27

Dec 11
SAT

San Antonio

STL

Lambert-St Louis

1 stop

13h 16m
$68

Multiple Airlines

Pick Dates

Deal found 11/30

Dec 12
SAT

San Antonio

STL

Lambert-St Louis

1 stop

13h 13m
$71

Frontier

Pick Dates

Deal found 11/27

Related info for your journey

Useful info, stats and facts about San Antonio to St. Louis flights.

What airports do I use to fly from San Antonio to St. Louis?

You will need to book a flight from San Antonio to Lambert-St Louis if you want to fly from San Antonio to St. Louis. At least 6 different airlines have flights from San Antonio (SAT) to Lambert-St Louis (STL) on a regular basis. There is 1 flight to St. Louis from the San Antonio airport per day. If you manage to book one that is nonstop, then you can expect the flight time from SAT to STL to be around 4h 03m.

Which airlines flying from San Antonio to Lambert-St Louis have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like American Airlines, United Airlines, and Delta flying from San Antonio to Lambert-St Louis have implemented new flexible cancellation policies.

Can I find flights from San Antonio to St. Louis for under $200 on Cheapflights?

Yes, there are multiple flights from San Antonio to St. Louis for under $200. The cheapest flight booked recently is on Frontier for just $164, but on average you can expect to pay $257.

Are there last-minute flights available from San Antonio to St. Louis for under $200?

There are currently 20+ open flights from San Antonio to St. Louis within the next 7 days for less than $200.

What days are nonstop flights available from San Antonio to St. Louis?

Nonstop flights are available for this route on the following days: Friday.

How many flights depart from San Antonio to St. Louis on average per day?

Per day, 1 flight departs from San Antonio to St. Louis on average.
Morning (6am - Noon) - 100% of flight departures

How long is the flight from San Antonio to St. Louis?

For as low as $164, Frontier can have you in St. Louis from San Antonio in 4h 33m. San Antonio and St. Louis are separated by a distance of 790 mi. Both multi-stop and nonstop flights can be found to your destination and back.

What are the cheapest airlines flying from San Antonio to St. Louis round-trip?

Frontier, at $164, was found to be the cheapest airline from San Antonio to St. Louis.Alternate airlines to your destination round-trip include United Airlines and Spirit Airlines. Users have found that Frontier is 58% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from San Antonio to St. Louis one-way?

To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $66. Delta flights start at $89 while deals on United Airlines start at $127 one-way.

What are the most popular airlines that fly from San Antonio to St. Louis?

American Airlines, Alaska Airlines and Delta are the most popular airlines when flying from San Antonio to St. Louis.

What are the cheapest flights from San Antonio to St. Louis?

On average you can expect to pay $508 for a flight from San Antonio to St. Louis. The cheapest flight overall is $127 while the most popular route, (San Antonio - Lambert-St Louis) is currently priced at $169.

Alternative routes for San Antonio to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from San Antonio to St. Louis

The chart below displays the airlines Cheapflights users traveling from San Antonio to St. Louis choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
FrontierCheapest$81Average$175FlexibilityNo cancel feeOn-time62%COVID-19 safety
Search Frontier flights
DeltaCheapest$170Average$285FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Delta flights
American AirlinesCheapest$181Average$447FlexibilityNo cancel feeOn-time71%COVID-19 safety
Search American Airlines flights
United AirlinesCheapest$291Average$468FlexibilityNo cancel feeOn-time69%COVID-19 safety
Search United Airlines flights

Hourly flight availability from San Antonio to St. Louis

See what time of day planes typically take off from San Antonio to St. Louis
100%of flight departuresEarly morningMidnight to 6 am
0%of flight departuresMorning6 am to noon
0%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from San Antonio to St. Louis

See how many times per day planes take to the skies headed from San Antonio to St. Louis
Sunday1daily flight
Monday2daily flights
Tuesday2daily flights
Wednesday1daily flight
Thursday1daily flight
Friday1daily flight
Saturday0daily flights