Cheap flights from San Antonio to St. Louis (SAT - STL)
The best prices from San Antonio to Lambert-St Louis are usually found in August or April, booked 37 days in advance, depart on a Thursday or Wednesday and return on a Tuesday
How to find the cheapest flight from San Antonio to St. Louis
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 | $177 - $366 |
STL | Temperature | 32 - 80.6 °F |
STL | Precipitation | 2.2 - 4.7 inches |
Popular in
January
High demand for flights, 27% potential price rise
Cheapest in
August
Best time to find cheap flights, 34% potential price drop
Round-trip from
$177
From San Antonio to Lambert-St Louis
One-way from
$128
One-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 Sunday. 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 36 days before your planned departure. Booking around this time can save you about 50% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $293 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $388.
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 January. Prices are generally better when you fly from San Antonio to St. Louis in August, with the cheapest ticket starting at $174.
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 45% versus a flight in the afternoon.
Cheap flights from San Antonio to St. Louis in January, February 2022
The best prices found for SAT to STL flights for January, February
San Antonio
Lambert-St Louis
1 stop
13h 56mLambert-St Louis
San Antonio
1 stop
7h 26mFrontier
San Antonio
Lambert-St Louis
1 stop
19h 17mLambert-St Louis
San Antonio
1 stop
7h 26mFrontier
San Antonio
Lambert-St Louis
1 stop
16h 17mLambert-St Louis
San Antonio
1 stop
7h 26mFrontier
San Antonio to St. Louis 2022 flight deals
Cheap flights to St. Louis from San Antonio found for this year
San Antonio
Lambert-St Louis
1 stop
13h 56mLambert-St Louis
San Antonio
1 stop
7h 26mFrontier
San Antonio
Lambert-St Louis
1 stop
19h 17mLambert-St Louis
San Antonio
1 stop
7h 26mFrontier
San Antonio
Lambert-St Louis
1 stop
16h 17mLambert-St Louis
San Antonio
1 stop
7h 26mFrontier
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
San Antonio
Lambert-St Louis
1 stop
5h 44mLambert-St Louis
San Antonio
1 stop
7h 10mMultiple Airlines
San Antonio
Lambert-St Louis
2 stops
11h 39mLambert-St Louis
San Antonio
1 stop
7h 10mFrontier
San Antonio
Lambert-St Louis
2 stops
11h 39mLambert-St Louis
San Antonio
2 stops
12h 17mUnited Airlines
One-way flights to Lambert-St Louis from San Antonio
The cheapest one-way flights from San Antonio to St. Louis
San Antonio
Lambert-St Louis
1 stop
19h 17mFrontier
San Antonio
Lambert-St Louis
1 stop
16h 17mFrontier
San Antonio
Lambert-St Louis
2 stops
21h 15mMultiple Airlines
Related info for your journey
Useful info, stats and facts about San Antonio to St. Louis flights.
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 Frontier 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 $127, but on average you can expect to pay $181.
Are there last-minute flights available from San Antonio to St. Louis for under $300?
There are currently 5+ open flights from San Antonio to St. Louis within the next 7 days for less than $300.
What are the cheapest airlines flying from San Antonio to St. Louis round-trip?
Frontier, at $127, was found to be the cheapest airline from San Antonio to St. Louis. An alternate airline flying to your destination would be American Airlines. Users have found that Frontier is 52% 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 $70. United Airlines flights start at $132 while deals on Sun Country Air start at $147 one-way.
What are the most popular airlines that fly from San Antonio to St. Louis?
American Airlines, Delta and Frontier 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 $195 for a flight from San Antonio to St. Louis. The cheapest flight overall is $99 while the most popular route, (San Antonio - Lambert-St Louis) is currently priced at $181.
Other flights from San Antonio
Flights to St. Louis from San Antonio
Can I fly to Lambert-St Louis from San Antonio right now?
Most visitors from San Antonio need to provide a negative COVID-19 test result and/or quarantine to enter Lambert-St Louis.
COVID-19 testing requirements
Visitors from San Antonio must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 24 hours before departing to Lambert-St Louis.
Quarantine requirements
Visitors from San Antonio are not required to quarantine after entering Lambert-St Louis.
Can I fly back to San Antonio from Lambert-St Louis?
COVID-19 testing requirements
Visitors from Lambert-St Louis must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 24 hours before departing to San Antonio.
Quarantine requirements
Visitors from Lambert-St Louis are not required to quarantine after entering San Antonio.
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.
Hourly flight availability from San Antonio to St. Louis
See what time of day planes typically take off from San Antonio to St. Louis
| 1%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 33%of flight departures | Morning6 am to noon |
| 66%of flight departures | AfternoonNoon to 6 pm |
| 0%of flight departures | Evening6 pm to midnight |
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
| Sunday | 1daily flight |
|---|---|
| Monday | 1daily flight |
| Tuesday | 0daily flights |
| Wednesday | 0daily flights |
| Thursday | 1daily flight |
| Friday | 1daily flight |
| Saturday | 1daily flight |