Journey information
Overview: St. Louis, MO to San Antonio, TX flight
Flights from St. Louis, MO to San Antonio, TX depart on average 45 times per day, taking around 5h 54m. Cheap flight tickets for this journey start at $123 (€99) but you can travel from only $121 (€98) by train.
The earliest flight runs at 05:00, the last at 21:35. The fastest flight covers the 792 miles (1276 km) distance in 4h 15m. August is the cheapest month to fly.
Distance 792 miles (1276 km) |
Average flight duration 5h 54m |
Cheapest ticket price $123 (€99) |
Flights per day 45 |
Fastest flight 4h 15m |
Cheapest month August |
First flight 05:00 |
Last flight 21:35 |
The cheapest and fastest flights from St. Louis, MO to San Antonio, TX
Cheapest price
$209
Average price
$274
Fastest journey
4 h 15 m
Average duration
6 h 6 m
Flights per day
2
Distance
1276 km
The best way to find a cheap flight ticket from St. Louis, MO to San Antonio, TX is to book your journey as far in advance as possible and to avoid traveling at rush hour.
The average ticket from St. Louis, MO to San Antonio, TX will cost around $274 if you buy it on the day, but the cheapest tickets can be found for only $209.
Of the 2 flights that leave St. Louis, MO for San Antonio, TX onSun, Mar 08, 2 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.
On Sun, Mar 08 the direct flights cover the 1276 km distance in an average of 6 h 6 m but if you time it right, some flights will get you there in just 4 h 15 m .
On Sun, Mar 08 the longest flights will take 7 h 57 m and usually involve a change or two along the way, but you might be able to save a few pennies if you’re on a budget.




Travel Information
Compare train, bus, and flight for St. Louis, MO to San Antonio, TX
Omio recommends booking the train as it is the most popular option from St. Louis, MO to San Antonio, TX among Omio's users. If you are prioritising price take the train with prices starting from $121. For those with little time consider booking a flight which can get you there in 5h 54m. In case you are seeking to minimise your carbon footprint the train is your best bet as it emits only 0.4 - 1.1kg. The ticket price range depends on the travel mode: a train costs an average of $121, and a flight costs an average of $123.
Distance: 792 miles (1276 km)
Compare flight with
| Flight | Most popular Train | Bus |
|---|---|---|
$266 Average price | $184 Average price Cheapest | $210 Average price |
8h 54m Average total duration Fastest 5h 54m Onboard + 3h 0m Additional time* | 26h 51m Average total duration 26h 21m Onboard + 30m Additional time* | 22h 12m Average total duration 21h 42m Onboard + 30m Additional time* |
3.8 - 7.7kg CO2 emissions | 0.4 - 1.1kg CO2 emissions Lowest | 1.3 - 3.2kg CO2 emissions |
Direct Options | Direct Options | Direct Options |
Additional time: Average total travel duration to departure point, security checks and transfers.
Live departures
St. Louis, MO to San Antonio, TX flight times
The table below shows live departures for St. Louis, MO to San Antonio, TX flights for today, Saturday, March 7. You can also manually refresh the results below to see updated flight journeys.
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
AA6369+ AA896 · AA606 | 8:25 PM St. Louis Lambert International Airport | 8h29 | 4:54 AM San Antonio International Airport | 2 transfers | |
UA333 · UA270 | 8:50 PM St. Louis Lambert International Airport | 6h04 | 2:54 AM San Antonio International Airport | 1 transfer | |
UA333 · UA757 | 8:50 PM St. Louis Lambert International Airport | 8h42 | 5:32 AM San Antonio International Airport | 1 transfer | |
UA5510 · UA1394 | 9:24 PM St. Louis Lambert International Airport | 7h51 | 5:15 AM San Antonio International Airport | 1 transfer | |
AA696 · AA606 | 10:13 PM St. Louis Lambert International Airport | 6h41 | 4:54 AM San Antonio International Airport | 1 transfer | |
AA696 · AA2097 | 10:13 PM St. Louis Lambert International Airport | 4h36 | 2:49 AM San Antonio International Airport | 1 transfer | |
AA696 · AA1406 | 10:13 PM St. Louis Lambert International Airport | 5h45 | 3:58 AM San Antonio International Airport | 1 transfer | |
AA696 · AA606 | 10:13 PM St. Louis Lambert International Airport | 6h41 | 4:54 AM San Antonio International Airport | 1 transfer | |
UA6219 · UA1528 | 10:47 PM St. Louis Lambert International Airport | 4h28 | 3:15 AM San Antonio International Airport | 1 transfer | |
UA6219 · UA2198 | 10:47 PM St. Louis Lambert International Airport | 6h10 | 4:57 AM San Antonio International Airport | 1 transfer | |
AA2269 · AA606 | 12:18 AM St. Louis Lambert International Airport | 4h36 | 4:54 AM San Antonio International Airport | 1 transfer | |
AA3904 · AA3658 | 12:36 AM St. Louis Lambert International Airport | 5h20 | 5:56 AM San Antonio International Airport | 1 transfer | |
![]() | 12:44 AM St. Louis, MO | 4h15 | 4:59 AM San Antonio, TX | 0 transfersDirect | |
![]() | 2:13 PM St. Louis, MO | 7h57 | 10:10 PM San Antonio, TX | 0 transfersDirect | |
This is the last flight of the day. | |||||
Find all the dates and times for this journey
Compare prices and tickets St. Louis, MO to San Antonio, TX by train, bus, or flight
Compare train, bus, and flight prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.
Mar 08
Mar 09
Mar 10
Mar 11
Mar 12
Mar 13
Mar 14
FAQs: St. Louis, MO to San Antonio, TX Flight
Find answers to the most common questions about traveling from St. Louis, MO to San Antonio, TX by flight. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest flight, the cheapest option, or tips for making the most of your visit at San Antonio, TX, this guide helps you travel smarter and with confidence.

- Fiesta San Antonio, a vibrant celebration featuring parades, live music, and cultural events honoring the city's diverse heritage
- San Antonio Stock Show & Rodeo, a thrilling event showcasing rodeo competitions, livestock shows, and live entertainment
- Diwali Festival of Lights, a colorful celebration of Indian culture with food, music, and traditional performances.
- Fiesta San Antonio, vibrant cultural celebrations with parades, music, and food
- Memorial Day, warm weather perfect for outdoor activities and events
- Independence Day, spectacular fireworks and festive atmosphere throughout the city.
popular airports
Popular airports from St. Louis, MO to San Antonio, TX
- Free Wi-Fi available throughout the airport.
- Shops in both terminals, including Hudson News and Tech on the Go.
- Parking available with short-term and long-term options, approximately 1.42€ ($1.50) per hour.
- Restaurants in both terminals, including fast food and sit-down options like Starbucks and Chili's
- Available outside the terminal.
- Elevators, ramps
- Available throughout both terminals.
- Hotels nearby, such as Marriott St. Louis Airport within walking distance.
- Showers available in some lounges, access may require lounge fee.
- Lounges available, including American Airlines Admirals Club.
- Lost and Found located in terminal 1, contact airport for details.
- Car rental services available, including Hertz and Enterprise in terminal 1
- MetroLink Red Line, Lambert Airport terminal 1 & 2 stations, 35 minutes
- Free Wi-Fi available throughout the airport.
- Shops are located in both terminals, including Duty-Free and local souvenir shops.
- Parking available on-site, approximately 2.4€ (CAD 3.50) per hour.
- Restaurants are located in both terminals, including Tex-Mex and American cuisine. Top options include La Gloria and Rosario's.
- Available outside the terminal.
- Ramps, assistance
- Available throughout the airport in both terminals.
- Hotels within walking distance, including the Hilton San Antonio Airport.
- Lounges available, including the United Club in terminal B.
- Lost and Found located in terminal A, near the baggage claim area.
- Car rental services are available on-site from major providers like Hertz and Avis.
- VIA Metropolitan Transit bus line 5, stop at San Antonio Intertiol Airport, 8 miles
More options for your journey from St. Louis, MO to San Antonio, TX
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