Cheap flights from San Antonio to St. Louis (SAT - STL) from $77

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 8/19. 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 25 — Jul 21

The best prices from San Antonio to Lambert-St Louis are usually found in April or July, 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 20, 2024.

Popular in

March

Cheapest in

April

Round-trip from

$318

One-way from

$129
High demand for flights, 20% potential price rise
Best time to find cheap flights, 17% 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 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 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 $268 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $566.

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 March. 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 48% 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 3,256,981 searches. Prices were last updated on June 20, 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.
Mon 7/18:11 pmSAT - STL
1 stop12h 14mFrontier
Fri 7/55:19 pmSTL - SAT
1 stop15h 06mFrontier
Deal found 6/20$208
Mon 7/18:11 pmSAT - STL
1 stop12h 14mFrontier
Thu 7/47:29 pmSTL - SAT
1 stop21h 07mFrontier
Deal found 6/19$210
Fri 7/124:09 pmSAT - STL
1 stop24h 29mMultiple Airlines
Sun 7/146:19 pmSTL - SAT
1 stop27h 17mMultiple Airlines
Deal found 6/19$211
Fri 7/124:09 pmSAT - STL
1 stop24h 29mMultiple Airlines
Sun 7/146:19 pmSTL - SAT
1 stop6h 22mMultiple Airlines
Deal found 6/19$216
Thu 7/1112:50 pmSAT - STL
1 stop7h 09mSpirit Airlines
Sun 7/146:19 pmSTL - SAT
1 stop6h 22mSpirit Airlines
Deal found 6/20$218
Fri 7/194:09 pmSAT - STL
1 stop24h 29mFrontier
Fri 7/265:19 pmSTL - SAT
1 stop15h 06mFrontier
Deal found 6/19$220
Fri 7/194:09 pmSAT - STL
1 stop24h 29mFrontier
Fri 7/265:19 pmSTL - SAT
1 stop15h 06mFrontier
Deal found 6/19$223
Sun 6/3010:58 pmSAT - STL
1 stop10h 31mFrontier
Thu 7/47:29 pmSTL - SAT
1 stop21h 07mFrontier
Deal found 6/20$226
Fri 7/126:20 pmSAT - STL
1 stop5h 19mDelta
Mon 7/157:01 pmSTL - SAT
1 stop5h 47mDelta
Deal found 6/20$248

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 3,256,981 searches. Data last updated June 20, 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.
Mon 9/239:19 amSAT - STL
1 stop26h 31mFrontier
Sun 9/293:53 pmSTL - SAT
1 stop16h 26mFrontier
Deal found 6/19$140
Tue 8/69:39 pmSAT - STL
1 stop11h 46mFrontier
Tue 8/1310:32 pmSTL - SAT
1 stop9h 47mFrontier
Deal found 6/18$142
Mon 8/1210:59 pmSAT - STL
1 stop12h 51mFrontier
Sun 8/186:42 pmSTL - SAT
1 stop12h 15mFrontier
Deal found 6/20$143
Fri 8/166:40 pmSAT - STL
1 stop15h 38mFrontier
Sun 8/186:42 pmSTL - SAT
1 stop12h 15mFrontier
Deal found 6/18$148
Wed 9/46:40 pmSAT - STL
1 stop15h 38mFrontier
Mon 9/97:29 pmSTL - SAT
1 stop22h 15mFrontier
Deal found 6/19$150
Thu 8/19:42 pmSAT - STL
1 stop23h 49mFrontier
Fri 8/95:19 pmSTL - SAT
1 stop15h 06mFrontier
Deal found 6/20$153
Thu 8/85:25 amSAT - STL
1 stop12h 04mMultiple Airlines
Fri 8/95:19 pmSTL - SAT
1 stop28h 25mMultiple Airlines
Deal found 6/18$175
Tue 8/206:40 pmSAT - STL
1 stop15h 38mFrontier
Wed 8/217:29 pmSTL - SAT
1 stop22h 15mFrontier
Deal found 6/20$179
Mon 7/18:11 pmSAT - STL
1 stop12h 14mFrontier
Fri 7/55:19 pmSTL - SAT
1 stop15h 06mFrontier
Deal found 6/20$208

San Antonio to St. Louis flights leaving soon

Find last-minute flight options from San Antonio to St. Louis for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,256,981 searches. Data last updated June 20, 2024.
Check out these flights departing soon from San Antonio to St. Louis. Users should examine the flight details to ensure there are no surprises.
Sun 6/3010:58 pmSAT - STL
1 stop10h 31mFrontier
Thu 7/47:29 pmSTL - SAT
1 stop21h 07mFrontier
Deal found 6/20$226
Sun 6/3010:58 pmSAT - STL
1 stop10h 31mMultiple Airlines
Wed 7/31:55 pmSTL - SAT
1 stop9h 06mMultiple Airlines
Deal found 6/20$280
Fri 6/289:27 amSAT - STL
1 stop24h 02mMultiple Airlines
Mon 7/12:41 pmSTL - SAT
1 stop11h 14mMultiple Airlines
Deal found 6/19$328
Tue 6/258:31 pmSAT - STL
1 stop16h 34mSpirit Airlines
Sat 7/611:34 amSTL - SAT
1 stop7h 35mSpirit Airlines
Deal found 6/19$357
Sun 6/3010:58 pmSAT - STL
1 stop10h 31mMultiple Airlines
Sun 7/76:30 pmSTL - SAT
1 stop15h 25mMultiple Airlines
Deal found 6/19$378
Sun 6/309:14 pmSAT - STL
1 stop16h 37mMultiple Airlines
Thu 7/412:15 pmSTL - SAT
3 stops21h 40mMultiple Airlines
Deal found 6/20$386
Fri 6/286:45 amSAT - STL
1 stop7h 31mMultiple Airlines
Sun 6/305:45 pmSTL - SAT
1 stop16h 06mMultiple Airlines
Deal found 6/20$388
Fri 6/288:28 pmSAT - STL
2 stops21h 00mMultiple Airlines
Sun 6/305:45 pmSTL - SAT
1 stop16h 06mMultiple Airlines
Deal found 6/19$397
Sat 6/2912:29 pmSAT - STL
1 stop6h 48mAmerican Airlines
Sun 7/77:50 pmSTL - SAT
1 stop4h 08mAmerican Airlines
Deal found 6/20$415

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 3,256,981 searches. Data last updated June 20, 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.
Mon 8/199:19 amSAT - STL
1 stop26h 31mFrontier
Deal found 6/19$77
Wed 8/211:26 pmSAT - STL
2 stops26h 54mSpirit Airlines
Deal found 6/19$88
Fri 7/56:45 amSAT - STL
1 stop7h 31mSpirit Airlines
Deal found 6/19$97
Mon 7/18:11 pmSAT - STL
1 stop12h 14mFrontier
Deal found 6/19$106
Fri 7/59:25 amSAT - STL
1 stop24h 00mFrontier
Deal found 6/19$107
Thu 7/1112:50 pmSAT - STL
1 stop7h 09mSpirit Airlines
Deal found 6/19$114
Mon 8/195:28 pmSAT - STL
2 stops13h 54mSpirit Airlines
Deal found 6/19$116
Mon 8/195:00 amSAT - STL
3 stops26h 22mSpirit Airlines
Deal found 6/19$121
Sun 6/3010:58 pmSAT - STL
1 stop10h 31mFrontier
Deal found 6/20$124

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 3,256,981 searches. Data last updated June 20, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$140 - $303

Route

Depart

Return

Price

San AntonioLambert-St Louis

SAT - STL

SATSTL

San Antonio

Mon 9/23

1 stop26h 31m

Lambert-St Louis

Sun 9/29

1 stop16h 26m

$140

San AntonioLambert-St Louis

SAT - STL

SATSTL

San Antonio

Tue 8/6

1 stop11h 46m

Lambert-St Louis

Tue 8/13

1 stop9h 47m

$142

San AntonioLambert-St Louis

SAT - STL

SATSTL

San Antonio

Mon 8/12

1 stop12h 51m

Lambert-St Louis

Sun 8/18

1 stop12h 15m

$143

San AntonioLambert-St Louis

SAT - STL

SATSTL

San Antonio

Fri 8/16

1 stop15h 38m

Lambert-St Louis

Sun 8/18

1 stop12h 15m

$148

San AntonioLambert-St Louis

SAT - STL

SATSTL

San Antonio

Thu 8/8

1 stop12h 04m

Lambert-St Louis

Fri 8/9

1 stop28h 25m

$175

San AntonioLambert-St Louis

SAT - STL

SATSTL

San Antonio

Thu 7/11

1 stop7h 09m

Lambert-St Louis

Sun 7/14

1 stop6h 22m

$218

San AntonioLambert-St Louis

SAT - STL

SATSTL

San Antonio

Fri 7/12

1 stop5h 19m

Lambert-St Louis

Mon 7/15

1 stop5h 47m

$248

San AntonioLambert-St Louis

SAT - STL

SATSTL

San Antonio

Tue 7/16

2 stops11h 09m

Lambert-St Louis

Tue 7/23

1 stop3h 59m

$283

San AntonioLambert-St Louis

SAT - STL

SATSTL

San Antonio

Wed 9/4

2 stops7h 07m

Lambert-St Louis

Mon 9/9

1 stop5h 59m

$303

Flights are sorted by cheapest first

Deals found on 6/19

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 June 14, 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 16, 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 Monday evenings 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 20, 2024.
Peruse reviews from past customers who have flown with Frontier, American Airlines and United Airlines 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.
8.1
Very good
9,296 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

7.3

Food

7.3

Overall

8.1

Reviews

1 / 10

Great airline! I would fly with them again. Overall, very positive experience along every step of the way. I was so jazzed they offer direct flights from Denver to Anchorage! Great customer service.

8.1
Very good
9,296 reviews
8.1
Very good
9,296 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

7.3

Food

7.3

Overall

8.1

Reviews

1 / 10

Great airline! I would fly with them again. Overall, very positive experience along every step of the way. I was so jazzed they offer direct flights from Denver to Anchorage! Great customer service.

8.0
Very good
10,000 reviews
8.1
Very good
9,296 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

7.3

Food

7.3

Overall

8.1

Reviews

1 / 10

Great airline! I would fly with them again. Overall, very positive experience along every step of the way. I was so jazzed they offer direct flights from Denver to Anchorage! Great customer service.

7.4
Good
10,000 reviews
8.1
Very good
9,296 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

7.3

Food

7.3

Overall

8.1

Reviews

1 / 10

Great airline! I would fly with them again. Overall, very positive experience along every step of the way. I was so jazzed they offer direct flights from Denver to Anchorage! Great customer service.

7.3
Good
10,000 reviews
8.1
Very good
9,296 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

7.3

Food

7.3

Overall

8.1

Reviews

1 / 10

Great airline! I would fly with them again. Overall, very positive experience along every step of the way. I was so jazzed they offer direct flights from Denver to Anchorage! Great customer service.

6.4
Okay
8,511 reviews
8.1
Very good
9,296 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

7.3

Food

7.3

Overall

8.1

Reviews

1 / 10

Great airline! I would fly with them again. Overall, very positive experience along every step of the way. I was so jazzed they offer direct flights from Denver to Anchorage! Great customer service.

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 19m.

  • 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 $140, but on average you can expect to pay $194.

  • Are there last-minute flights available from San Antonio to St. Louis for under $300?

    There are currently 20+ 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 $140, was found to be the cheapest airline from San Antonio to St. Louis.Alternate airlines to your destination round-trip include Spirit Airlines and Delta. Users have found that Frontier is 65% 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 $77. Spirit Airlines flights start at $88 while deals on United Airlines start at $236 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 6/20.

  • 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 $360). 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

Browse thousands of different options on Cheapflights for your next trip

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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 3,256,981 searches. Data last updated June 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$123Average$199FlexibilityNo cancel feeOn-time62%
DeltaCheapest$210Average$348FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$267Average$386FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$285Average$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 20, 2024.
55%of flight departuresEarly morningMidnight to 6 am
0%of flight departuresMorning6 am to noon
45%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 20, 2024.
Sunday3daily flights
Monday1daily flight
Tuesday1daily flight
Wednesday1daily flight
Thursday1daily flight
Friday1daily flight
Saturday2daily flights
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