Cheap flights from San Antonio to St. Louis (SAT - STL) from $56

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 9/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
SAT — STL
Jun 11 — Jun 181

The best prices from San Antonio to Lambert-St Louis are usually found in April or September, booked 32 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from San Antonio to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) 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 June 6, 2024.

Popular in

August

Cheapest in

April

Round-trip from

$318

One-way from

$146
High demand for flights, 32% potential price rise
Best time to find cheap flights, 20% potential price drop
From San Antonio to Lambert-St Louis
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 Wednesday. 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 33 days before your planned departure. Booking around this time can save you about 210% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $228 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $550.

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 August. Prices are generally better when you fly from San Antonio to St. Louis in April, with the cheapest ticket starting at $181.

What is the cheapest time of day to fly from SAT to 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 43% versus a flight in the afternoon.

Cheap San Antonio to St. Louis flights in June & July 2024

Find cheap flight options from San Antonio to St. Louis specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,009,960 searches. Prices were last updated on June 6, 2024.
These are some of the most attractive deals on flights from San Antonio to St. Louis in 2024. Check back in a little while for more flight options.
Tue 7/95:21 amSAT - STL
1 stop9h 02mSpirit Airlines
Tue 7/1610:11 amSTL - SAT
1 stop14h 48mSpirit Airlines
Deal found 6/5$147
Tue 7/95:21 amSAT - STL
1 stop9h 02mSpirit Airlines
Tue 7/1610:11 amSTL - SAT
1 stop14h 48mSpirit Airlines
Deal found 6/5$148
Tue 7/95:21 amSAT - STL
1 stop9h 02mSpirit Airlines
Tue 7/1610:11 amSTL - SAT
2 stops27h 31mSpirit Airlines
Deal found 6/5$155
Tue 7/95:21 amSAT - STL
1 stop9h 02mSpirit Airlines
Tue 7/1610:11 amSTL - SAT
2 stops27h 31mSpirit Airlines
Deal found 6/5$156
Wed 7/317:09 pmSAT - STL
1 stop25h 45mFrontier
Wed 8/710:32 pmSTL - SAT
1 stop22h 20mFrontier
Deal found 6/6$162
Tue 7/95:21 amSAT - STL
1 stop9h 02mMultiple Airlines
Fri 7/125:19 pmSTL - SAT
1 stop15h 06mMultiple Airlines
Deal found 6/4$178
Tue 7/25:21 amSAT - STL
1 stop9h 02mSpirit Airlines
Fri 7/53:07 pmSTL - SAT
1 stop10h 48mSpirit Airlines
Deal found 6/4$181
Wed 7/3110:00 pmSAT - STL
1 stop21h 57mFrontier
Mon 8/57:51 pmSTL - SAT
1 stop24h 48mFrontier
Deal found 6/5$200
Tue 7/95:21 amSAT - STL
1 stop9h 02mSpirit Airlines
Tue 7/1610:11 amSTL - SAT
3 stops26h 47mSpirit Airlines
Deal found 6/5$207

San Antonio to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between San Antonio and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,009,960 searches. Data last updated June 6, 2024.
These are some of the most attractive deals on flights from San Antonio to St. Louis in 2024. Check back in a little while for more flight options.
Wed 9/46:08 pmSAT - STL
1 stop22h 12mSpirit Airlines
Mon 9/91:59 pmSTL - SAT
1 stop15h 05mSpirit Airlines
Deal found 6/5$139
Tue 7/95:21 amSAT - STL
1 stop9h 02mSpirit Airlines
Tue 7/1610:11 amSTL - SAT
1 stop14h 48mSpirit Airlines
Deal found 6/5$147
Tue 7/95:21 amSAT - STL
1 stop9h 02mSpirit Airlines
Tue 7/1610:11 amSTL - SAT
1 stop14h 48mSpirit Airlines
Deal found 6/5$148
Fri 9/66:40 pmSAT - STL
1 stop15h 38mFrontier
Mon 9/97:29 pmSTL - SAT
1 stop22h 15mFrontier
Deal found 6/6$150
Tue 7/95:21 amSAT - STL
1 stop9h 02mSpirit Airlines
Tue 7/1610:11 amSTL - SAT
2 stops27h 31mSpirit Airlines
Deal found 6/5$155
Tue 7/95:21 amSAT - STL
1 stop9h 02mSpirit Airlines
Tue 7/1610:11 amSTL - SAT
2 stops27h 31mSpirit Airlines
Deal found 6/5$156
Sat 8/246:40 pmSAT - STL
1 stop15h 38mFrontier
Tue 8/277:29 pmSTL - SAT
1 stop22h 15mFrontier
Deal found 6/5$158
Wed 7/317:09 pmSAT - STL
1 stop25h 45mFrontier
Wed 8/710:32 pmSTL - SAT
1 stop22h 20mFrontier
Deal found 6/6$162
Tue 7/95:21 amSAT - STL
1 stop9h 02mMultiple Airlines
Fri 7/125:19 pmSTL - SAT
1 stop15h 06mMultiple Airlines
Deal found 6/4$178

One-way flights to St. Louis from San Antonio

Search for one-way flight options from San Antonio to St. Louis. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,009,960 searches. Data last updated June 6, 2024.
Users traveling one-way from San Antonio to St. Louis can select one of these great deals. Users needing a return flight from San Antonio to St. Louis should utilize the search form above.
Wed 9/115:20 amSAT - STL
1 stop16h 54mSpirit Airlines
Deal found 6/5$56
Tue 7/95:21 amSAT - STL
1 stop9h 02mSpirit Airlines
Deal found 6/4$67
Wed 9/115:00 amSAT - STL
2 stops17h 14mSpirit Airlines
Deal found 6/5$70
Wed 9/113:15 pmSAT - STL
3 stops27h 14mSpirit Airlines
Deal found 6/5$89
Fri 7/56:45 amSAT - STL
1 stop7h 31mSpirit Airlines
Deal found 6/5$97
Tue 7/25:21 amSAT - STL
1 stop9h 02mSpirit Airlines
Deal found 6/4$103
Sun 7/710:58 pmSAT - STL
1 stop10h 27mFrontier
Deal found 6/5$106
Thu 6/277:51 pmSAT - STL
1 stop13h 49mFrontier
Deal found 6/5$110
Mon 6/177:06 pmSAT - STL
1 stop12h 01mFrontier
Deal found 6/5$111

Find flights from San Antonio to St. Louis within your budget

Customize your flight search to find flights from San Antonio 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 3,009,960 searches. Data last updated June 6, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$139 - $264

Route

Depart

Return

Price

San AntonioLambert-St Louis

SAT - STL

SATSTL

San Antonio

Wed 9/4

1 stop22h 12m

Lambert-St Louis

Mon 9/9

1 stop15h 05m

$139

San AntonioLambert-St Louis

SAT - STL

SATSTL

San Antonio

Tue 7/9

1 stop9h 02m

Lambert-St Louis

Tue 7/16

1 stop14h 48m

$147

San AntonioLambert-St Louis

SAT - STL

SATSTL

San Antonio

Tue 7/9

1 stop9h 02m

Lambert-St Louis

Tue 7/16

1 stop14h 48m

$148

San AntonioLambert-St Louis

SAT - STL

SATSTL

San Antonio

Fri 9/6

1 stop15h 38m

Lambert-St Louis

Mon 9/9

1 stop22h 15m

$150

San AntonioLambert-St Louis

SAT - STL

SATSTL

San Antonio

Sat 8/24

1 stop15h 38m

Lambert-St Louis

Tue 8/27

1 stop22h 15m

$158

San AntonioLambert-St Louis

SAT - STL

SATSTL

San Antonio

Wed 7/31

1 stop25h 45m

Lambert-St Louis

Wed 8/7

1 stop22h 20m

$162

San AntonioLambert-St Louis

SAT - STL

SATSTL

San Antonio

Tue 7/9

1 stop9h 02m

Lambert-St Louis

Fri 7/12

1 stop15h 06m

$178

San AntonioLambert-St Louis

SAT - STL

SATSTL

San Antonio

Wed 6/19

1 stop7h 14m

Lambert-St Louis

Wed 7/10

1 stop4h 41m

$261

San AntonioLambert-St Louis

SAT - STL

SATSTL

San Antonio

Tue 7/30

1 stop5h 19m

Lambert-St Louis

Wed 7/31

1 stop5h 47m

$264

Flights are sorted by cheapest first

Deals found on 6/5

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

Use this chart to determine the optimal time to book a round-trip flight from San Antonio to St. Louis. Price data was last updated on May 31, 2024.
To ensure you get the cheapest price possible for a flight from San Antonio to St. Louis, you should look to book at least 32 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Search Deals

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

Use this chart to determine the cheapest time to fly round-trip from San Antonio to St. Louis. Price data was last updated on June 2, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their San Antonio to St. Louis flight should consider departing on Wednesday at noon when fares are most often at their lowest. Wednesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from San Antonio to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from San Antonio 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.

Temperature and rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature and rainfall totals by month.

STL

Temperature

32 - 80.6 °F

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 June 6, 2024.
Peruse reviews from past customers who have flown with Frontier, Spirit Airlines and Delta from San Antonio to St. Louis to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.2
Very good
5,918 reviews

Crew

8.7

Entertainment

7.8

Boarding

8.3

Comfort

8.1

Overall

8.2

Food

7.3

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Southwest
8.2
Very good
5,918 reviews
Southwest
8.2
Very good
5,918 reviews

Crew

8.7

Entertainment

7.8

Boarding

8.3

Comfort

8.1

Overall

8.2

Food

7.3

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

8.1
Very good
9,222 reviews
Southwest
8.2
Very good
5,918 reviews

Crew

8.7

Entertainment

7.8

Boarding

8.3

Comfort

8.1

Overall

8.2

Food

7.3

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

8.0
Very good
10,368 reviews
Southwest
8.2
Very good
5,918 reviews

Crew

8.7

Entertainment

7.8

Boarding

8.3

Comfort

8.1

Overall

8.2

Food

7.3

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

7.4
Good
10,696 reviews
Southwest
8.2
Very good
5,918 reviews

Crew

8.7

Entertainment

7.8

Boarding

8.3

Comfort

8.1

Overall

8.2

Food

7.3

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

7.3
Good
14,227 reviews
Southwest
8.2
Very good
5,918 reviews

Crew

8.7

Entertainment

7.8

Boarding

8.3

Comfort

8.1

Overall

8.2

Food

7.3

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Related info for your journey

Find useful and relevant information for your journey from San Antonio 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 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 4 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 5h 26m.

  • 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 Spirit Airlines for just $139, but on average you can expect to pay $193.

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

    Spirit Airlines, at $139, was found to be the cheapest airline from San Antonio to St. Louis.Alternate airlines to your destination round-trip include Frontier and United Airlines. Users have found that Spirit Airlines is 66% 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 Spirit Airlines, which is currently one of the cheapest options available, starting at $56. Frontier flights start at $106 while deals on Delta start at $146 one-way.

  • What does SAT to STL mean?

    SAT stands for San Antonio Airport, while STL stands for Lambert-St Louis Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

  • Can I find deals for flights from San Antonio to St. Louis that include extra baggage allowance?

    The amount of baggage you can bring on your San Antonio to St. Louis flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from San Antonio to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter San Antonio to St. Louis flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Antonio 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.

  • Can I find deals for flights from San Antonio to St. Louis that allow pets onboard?

    Many airlines flying from San Antonio to St. Louis offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from San Antonio to St. Louis?

    Yes, you can often find last-minute deals on San Antonio to St. Louis flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the San Antonio to St. Louis flight deals updated?

    The San Antonio to St. Louis flight deals you see on this page were last updated on 6/6.

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

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

    Currently, September is the cheapest month in which you can book a flight from San Antonio to St. Louis (average of $318). Flying from San Antonio to St. Louis in July is currently the most expensive (average of $365). 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

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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

Discover the top 4 airlines that operate flights from San Antonio 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 3,009,960 searches. Data last updated June 6, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$123Average$199FlexibilityNo cancel feeOn-time62%
DeltaCheapest$213Average$356FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$268Average$402FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$279Average$482FlexibilityNo cancel feeOn-time69%

Search flights from San Antonio to St. Louis by cabin class

Find flights from San Antonio to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from San Antonio to St. Louis

Find hourly flight availability from San Antonio 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 June 6, 2024.
40%of flight departuresEarly morningMidnight to 6 am
10%of flight departuresMorning6 am to noon
50%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

Explore weekly flight availability from San Antonio to St. Louis. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 6, 2024.
Sunday3daily flights
Monday1daily flight
Tuesday1daily flight
Wednesday1daily flight
Thursday1daily flight
Friday1daily flight
Saturday2daily flights

Fly with Cheapflights

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How does Cheapflights help users find flights from San Antonio to St. Louis?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to St. Louis from San Antonio today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from San Antonio to St. Louis?

Cheapflights helps you find that perfect flight to St. Louis from San Antonio by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from San Antonio to St. Louis with no change fees?

Need flexible booking options for your flight to St. Louis from San Antonio? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from San Antonio to St. Louis become cheaper?

Of course! You can now track prices for flights from San Antonio to St. Louis and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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