FlyX aircraft connecting destinations across a global flight network
STL to SAT

St Louis to San Antonio Flights

Compare fares, departure times, stops and baggage details for this route, then open the full search when you are ready to check current availability and complete booking.

Fare checked before payment All fees shown upfront Transparent cancellation policy 24×7 booking support
Lowest fare₹18,769United Airlines
Fastest3h 54mgate to gate
Options found40flights on this route
Find your flight STL SAT

Available Flights & Fares

Compare fares, timings and baggage. Pick the flight that suits your trip.

Prices in INR
40 flight options

Fares are checked again before payment.

FLYX20 AUTO APPLIED Coupon offer
FLYX EXCLUSIVE SAVINGS Up to 20% off

On eligible flight bookings · Offer terms apply.

Coupon savings Bank terms apply Eligible flights
View offer
Bank offer T&C apply

1% cashback

Flipkart Axis Bank Credit Card

Offer terms apply Eligible payments
View Offer & T&C Checked at payment
Flipkart Axis Bank Credit Card
Axis Bank Flipkart Axis Bank Credit Card
An eligible FlyX coupon saves first. STAY30 is only for eligible hotel bookings. Bank and card offers are additional and checked inside secure payment.
Offers shown here are run by the respective banks and card issuers and are applied by our payment gateway. FlyX is not affiliated with, endorsed by or a partner of these brands, and all names and logos belong to their owners.
Sort by
United Airlines
United Airlines
UA-1371
06:15
2026-10-30
St Louis (STL)Lambert-St Louis Intl
4H :31 M
Non Stop
10:46
2026-10-30
San Antonio (SAT)San Antonio International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
AA
American Airlines
AA-2261
05:40
2026-10-30
St Louis (STL)Lambert-St Louis Intl
4H :06 M
1 Stop
DFW · 0h 50m Dallas (DFW), United States
09:46
2026-10-30
San Antonio (SAT)San Antonio International
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
United Airlines
United Airlines
UA-1344
06:10
2026-10-30
St Louis (STL)Lambert-St Louis Intl
9H :03 M
1 Stop
EWR · 2h 18m New York (EWR), United States
15:13
2026-10-30
San Antonio (SAT)San Antonio International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-1371
06:15
2026-10-30
St Louis (STL)Lambert-St Louis Intl
7H :01 M
1 Stop
IAH · 3h 30m Houston (IAH), United States
13:16
2026-10-30
San Antonio (SAT)San Antonio International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
AA
American Airlines
AA-1997
07:29
2026-10-30
St Louis (STL)Lambert-St Louis Intl
6H :27 M
1 Stop
ORD · 2h 00m Chicago (ORD), United States
13:56
2026-10-30
San Antonio (SAT)San Antonio International
Non Refundable 6 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
United Airlines
United Airlines
UA-1352
08:50
2026-10-30
St Louis (STL)Lambert-St Louis Intl
8H :05 M
1 Stop
DEN · 3h 21m Denver (DEN), United States
16:55
2026-10-30
San Antonio (SAT)San Antonio International
Non Refundable 1 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-1380
13:40
2026-10-30
St Louis (STL)Lambert-St Louis Intl
7H :13 M
1 Stop
DEN · 2h 28m Denver (DEN), United States
20:53
2026-10-30
San Antonio (SAT)San Antonio International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-4045
17:55
2026-10-30
St Louis (STL)Lambert-St Louis Intl
4H :56 M
1 Stop
IAH · 1h 20m Houston (IAH), United States
22:51
2026-10-30
San Antonio (SAT)San Antonio International
Non Refundable 2 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
AA
American Airlines
AA-2761
19:10
2026-10-30
St Louis (STL)Lambert-St Louis Intl
4H :49 M
1 Stop
DFW · 1h 39m Dallas (DFW), United States
23:59
2026-10-30
San Antonio (SAT)San Antonio International
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
Delta Air Lines
Delta Air Lines
DL-1524
06:00
2026-10-30
St Louis (STL)Lambert-St Louis Intl
6H :35 M
1 Stop
ATL · 2h 24m Atlanta (ATL), United States
12:35
2026-10-30
San Antonio (SAT)San Antonio International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-543
17:35
2026-10-30
St Louis (STL)Lambert-St Louis Intl
6H :58 M
1 Stop
ATL · 2h 45m Atlanta (ATL), United States
00:33
2026-10-31
San Antonio (SAT)San Antonio International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-1393
19:20
2026-10-30
St Louis (STL)Lambert-St Louis Intl
5H :13 M
1 Stop
ATL · 0h 59m Atlanta (ATL), United States
00:33
2026-10-31
San Antonio (SAT)San Antonio International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
AA
American Airlines
AA-2208
11:31
2026-10-30
St Louis (STL)Lambert-St Louis Intl
6H :37 M
1 Stop
ORD · 1h 51m Chicago (ORD), United States
18:08
2026-10-30
San Antonio (SAT)San Antonio International
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
United Airlines
United Airlines
UA-4439
05:00
2026-10-30
St Louis (STL)Lambert-St Louis Intl
7H :24 M
1 Stop
ORD · 2h 31m Chicago (ORD), United States
12:24
2026-10-30
San Antonio (SAT)San Antonio International
Non Refundable 5 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
AA
American Airlines
AA-2261
05:40
2026-10-30
St Louis (STL)Lambert-St Louis Intl
6H :16 M
1 Stop
DFW · 3h 00m Dallas (DFW), United States
11:56
2026-10-30
San Antonio (SAT)San Antonio International
Non Refundable 3 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
AA
American Airlines
AA-537
06:32
2026-10-30
St Louis (STL)Lambert-St Louis Intl
5H :24 M
1 Stop
DFW · 2h 05m Dallas (DFW), United States
11:56
2026-10-30
San Antonio (SAT)San Antonio International
Non Refundable 1 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
AA
American Airlines
AA-537
06:32
2026-10-30
St Louis (STL)Lambert-St Louis Intl
6H :43 M
1 Stop
DFW · 3h 27m Dallas (DFW), United States
13:15
2026-10-30
San Antonio (SAT)San Antonio International
Non Refundable 5 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
AA
American Airlines
AA-1959
08:48
2026-10-30
St Louis (STL)Lambert-St Louis Intl
4H :27 M
1 Stop
DFW · 1h 10m Dallas (DFW), United States
13:15
2026-10-30
San Antonio (SAT)San Antonio International
Non Refundable 3 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
United Airlines
United Airlines
UA-714
13:08
2026-10-30
St Louis (STL)Lambert-St Louis Intl
9H :43 M
1 Stop
IAH · 2h 35m Houston (IAH), United States
22:51
2026-10-30
San Antonio (SAT)San Antonio International
Non Refundable 4 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
AA
American Airlines
AA-1515
05:28
2026-10-30
St Louis (STL)Lambert-St Louis Intl
5H :33 M
1 Stop
CLT · 0h 30m Charlotte (CLT), United States
11:01
2026-10-30
San Antonio (SAT)San Antonio International
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
AA
American Airlines
AA-2261
05:40
2026-10-30
St Louis (STL)Lambert-St Louis Intl
5H :13 M
1 Stop
DFW · 1h 56m Dallas (DFW), United States
10:53
2026-10-30
San Antonio (SAT)San Antonio International
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
AA
American Airlines
AA-537
06:32
2026-10-30
St Louis (STL)Lambert-St Louis Intl
4H :21 M
1 Stop
DFW · 1h 01m Dallas (DFW), United States
10:53
2026-10-30
San Antonio (SAT)San Antonio International
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces

Recommended hotels in San Antonio

Stay options near the arrival city for the same travel date.

Search hotels
AA
American Airlines
AA-3333
10:12
2026-10-30
St Louis (STL)Lambert-St Louis Intl
4H :40 M
1 Stop
DFW · 1h 28m Dallas (DFW), United States
14:52
2026-10-30
San Antonio (SAT)San Antonio International
Non Refundable 4 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
AA
American Airlines
AA-1363
15:20
2026-10-30
St Louis (STL)Lambert-St Louis Intl
3H :54 M
1 Stop
DFW · 0h 40m Dallas (DFW), United States
19:14
2026-10-30
San Antonio (SAT)San Antonio International
Non Refundable 2 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
AA
American Airlines
AA-4259
17:27
2026-10-30
St Louis (STL)Lambert-St Louis Intl
6H :30 M
1 Stop
ORD · 1h 54m Chicago (ORD), United States
23:57
2026-10-30
San Antonio (SAT)San Antonio International
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
United Airlines
United Airlines
UA-4423
06:00
2026-10-30
St Louis (STL)Lambert-St Louis Intl
6H :24 M
1 Stop
ORD · 1h 24m Chicago (ORD), United States
12:24
2026-10-30
San Antonio (SAT)San Antonio International
Non Refundable 2 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
No flights match the selected filters. Clear filters or open full search.

Airfare Highlights

From flights departing on Fri, 30 Oct 2026.

Lowest fare ₹18,769 United Airlines 06:15
Earliest departure ₹24,597 United Airlines 05:00
Shortest duration ₹26,527 American Airlines 15:20
Night 00:00-05:59 ₹19,007 American Airlines at 05:40
Morning 06:00-11:59 ₹18,769 United Airlines at 06:15
Afternoon 12:00-17:59 ₹19,007 United Airlines at 13:40
Evening 18:00-23:59 ₹19,007 American Airlines at 19:10

Departure & Arrival Airport Details

St Louis (STL)

Lambert-St Louis Intl

United States

GMT -6

Latitude: 38.748697

Longitude: -90.370003

San Antonio (SAT)

San Antonio International

United States

GMT -6

Latitude: 29.533700942993164

Longitude: -98.46980285644531

Distance: St Louis (STL), United States to San Antonio (SAT), United States - 1,265.88 km
Flights shown for 30 Oct 2026. View all flights opens the complete search result.
Route forecast

Weather in St Louis and San Antonio

Live forecast for both cities, 12 Oct to 15 Oct.

Departure city

St Louis

Thu, 15 Oct
28°CClear skyLow 20°
72% humidity 12 km/h wind 0.2 mm rain
  • Mon24° / 15°
  • Tue30° / 17°
  • Wed28° / 18°
Arrival city

San Antonio

Thu, 15 Oct
29°CCloudyLow 23°
92% humidity 3 km/h wind 8.6 mm rain
  • Mon30° / 21°
  • Tue31° / 24°
  • Wed31° / 25°

Forecast data from MET Norway, CC BY 4.0.

Smart travel dates

Holidays and peak dates for San Antonio

Fares and hotel rates usually run higher around these dates. Booking earlier or moving your trip by a day or two often costs less.

Busiest periods: Summer travel (15 Jun – 31 Aug), Holiday season (18 Dec – 02 Jan).

  • 12OctColumbus DayMonday
  • 12OctColumbus DayMonday
  • 12OctIndigenous Peoples' DayMonday
  • 11NovVeterans DayWednesday
  • 26NovThanksgiving DayThursday
  • 25DecChristmas DayFriday

Fixed-date national holidays. Festivals that follow the lunar calendar shift each year and are not listed here, so check the exact date for your travel year.

Compare your journey

How to travel St Louis to San Antonio

Ways to make this trip that you can book on FlyX, compared by price and journey time.

OptionFromJourney timeAvailabilityAction
Non-stop flight Fastest₹18,7694h 31m1 flight
Connecting flight₹19,007Longer, includes a stop39 options

Air distance is about 1,266 km. 4 airlines operate this route.

Road distance and coach duration are approximate estimates from the air distance, not a timetable.

Airlines flying from St Louis to San Antonio

Compare fares, stops, baggage and refundability across the airlines flying this route.

United Airlines Flights

from ₹18,76914 flights
Fares from
₹18,769
Non-stop
1 in these results
Departures
14 in the list above

American Airlines Flights

from ₹19,00714 flights
Fares from
₹19,007
Non-stop
None in these results
Departures
14 in the list above

Delta Air Lines Flights

from ₹19,77611 flights
Fares from
₹19,776
Non-stop
None in these results
Departures
11 in the list above

Route Overview & Flight Facts

Fastest flight duration3h 54m · American Airlines
First departure of the day05:00 · United Airlines
Last departure of the day19:20 · Delta Air Lines
Flight options found40
Direct / non-stop options1
Airport codesSt Louis–STL, San Antonio–SAT

Fares and timings are indicative. The exact price is confirmed with the airline when you search.

Flight Schedule, Timings & Airfare Insights

Daily Flight Schedule & Travel Duration

The search for Fri, 30 Oct found 40 flight options, 1 of them non-stop. The first flight leaves around 05:00 and the last around 19:20. The fastest flight takes about 3h 54m.

Morning vs Evening Departure Fares

Lowest fare by departure window: Morning from ₹18,769, Night from ₹19,007, Afternoon from ₹19,007, Evening from ₹19,007. These observations do not predict the cheapest departure window on other dates.

Cheapest Airfare & Best Time to Book

Search your travel dates to compare current fares. Prices change with airline seat availability.

One-Way vs Round-Trip Fare Comparison

Compare the complete cost and conditions of both options for your dates. A round-trip can have different fare and change rules from two one-way tickets. One booking may contain multiple airline PNRs; confirm baggage transfer and connection protection for separate tickets.

Online Web Check-In & Boarding Pass

Check the operating airline’s opening time and check-in deadline for each sector. Seat charges and availability depend on your fare. Use the airline reference and the links on Web Check-in.

How to Book Cheap Flights on FlyX

  1. 1
    Enter your travel details

    Choose one-way or round-trip, pick your dates and travellers in the search form above.

  2. 2
    Compare search results

    Sort or filter the St Louis–San Antonio results by price, departure time, stops and airline.

  3. 3
    Open the fare choices

    Check baggage allowance and refundability for each fare type before continuing.

  4. 4
    Review the final price

    Review the refreshed supplier fare, coupon saving and selected payment-method fee before you pay.

  5. 5
    Pay securely

    UPI, cards, net banking and wallets supported; payment and ticket issuance have separate statuses. If issuance is pending, follow the booking status; the confirmed ticket is sent after issuance.

Why Book Your Flight with FlyX?

Compare the available St Louis to San Antonio options by total price, stops, baggage and fare conditions. Search your dates for current availability, then review traveller details and the final price before paying.

Payment confirmation and ticket issuance are separate steps. If your booking is awaiting a PNR or ticket, follow its status and contact FlyX support when you need help. Your issued ticket contains the airline reference and itinerary. Change and cancellation charges depend on the purchased fare and any separately disclosed service fee.

Fare checked before paymentCoupon eligibility checkedBooking status trackingBooking support

Exclusive Flight Offers & Promo Coupons

Coupon codeOfferMax saving
FLYX20Up to 20% Off on Flights₹1,500

Check coupon eligibility and the final discount on the review page before you pay. View full terms.

Frequently Asked Questions

Is it worth booking St Louis to San Antonio flights in advance?

There is no guaranteed cheapest booking window. Compare your planned dates early, check nearby dates and consider baggage, connection time and change conditions as well as price. On the St Louis to San Antonio dates shown on this page, the lowest fare is on a Friday at ₹18,769. This can change from week to week.

How far is St Louis from San Antonio by air?

The direct air distance between St Louis (STL) and San Antonio (SAT) is about 1,266 km. Actual flight time varies with the routing the airline files and with winds on the day.

Are there non-stop flights from STL to SAT?

Yes. 1 non-stop flight is listed on this page for St Louis to San Antonio. Use the Stops filter to see only those.

Which airlines fly St Louis to San Antonio?

United Airlines, American Airlines and Delta Air Lines are listed on this route for the dates shown here. Fares, baggage allowance and refund rules differ by airline and by fare type, so compare the fare conditions and not only the headline price.

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

The quickest non-stop St Louis to San Antonio flight on this page takes about 4h 31m. Journeys with a stop take longer, since the total includes the layover.

What is the cheapest St Louis to San Antonio flight fare?

The lowest St Louis to San Antonio fare on this page is ₹18,769. Fares on the same dates run up to ₹66,331, depending on airline, timing and fare type. Airline prices change often, so search your dates for the current fare.

What time do St Louis to San Antonio flights depart?

On the dates shown here, the first departure is around 05:00 and the last around 19:20, local time at St Louis. Use the departure-time filter on the results above to narrow to a morning, afternoon or evening slot.

Why does the price change after clicking Book Now?

Airline seat inventory and fares change continuously. Selecting Book Now runs a live fare verification with the airline so the price you approve is the price you pay. If it has moved, you see the new figure before any payment.

Before you book this route

Check the airport codes STL–SAT, local departure and arrival dates, and every connecting airport. Connections can have different document and baggage requirements from your final destination.

Where these fares come from

The fares, durations, stops and baggage shown here come from real airline search results for this route. They are examples for the dates on this page, not a full timetable and not a locked price. Run a search to see what is available for your own dates.

Fares shown are for departures on .

Check official travel requirements

Confirm passport, visa and transit rules for your nationality and full itinerary with the relevant government and operating airline. IATA travel-document information explains why requirements vary.

For payment, ticket issuance or a change request, see FlyX support. About FlyX.

United States travel guide for Indian travellers

Planning more than the flight? Our United States guide covers the visa process for Indian passport holders, best time to go, how long to plan for, and which places are worth the days you have. Long-haul city breaks and national parks.

Read the United States travel guide

What to Expect When Booking Your Flight

The STL to SAT cards above show selected flight options. Airline prices and seat availability can move quickly, so the final fare is rechecked in the booking flow.

Approx route distance: 1,265.88 km.

Before you book

Compare nearby dates

The date strip opens the complete search result for the route and selected date.

Use filters

Shortlist by price, stops, departure time and refundable fare preference.

Check fare choices

Continue to Booking opens the verified fare choices, including baggage and refundability, before review.

Lowest St Louis to San Antonio airfare, in 30 days and in 90 days

Cheapest FareFareDateAirlineDeparture
Lowest Airfare ₹18,769 30/10/2026 United Airlines 06:15
Cheapest Airfare Within 30 Days ₹18,394 07/11/2026 United Airlines 06:15
Cheapest Airfare Within 90 Days ₹17,831 06/01/2027 United Airlines 06:15

Book St Louis to San Antonio Flight Tickets on FlyX

FlyX lists each St Louis to San Antonio flight in these results with its fare, departure time, stops, layover airport and baggage, so you can compare air tickets side by side. To find a cheap ticket, sort by price and check what baggage the fare includes. The fare is checked with the airline again before you pay.

St Louis to San Antonio Flight Distance, Duration and Time

The aerial distance between St Louis and San Antonio is about 1,266 KM. In these results, journey times range from 3h 54m to 23h 34m. Flights with a layover take longer because the total includes the connection time.

St Louis to San Antonio Flight Schedule and Timing

The search for these dates returned 40 flight options, 1 of them non-stop. The first departure from St Louis is at 05:00 and the last is at 19:20. Flights leave from Lambert-St Louis Intl and land at San Antonio International.

Flight Route Details & Analysis

Flight DetailsInformation
RouteSt Louis to San Antonio
Aerial Distance1,266 KM
Flight Duration3h 54m - 23h 34m
Airport CodesSt Louis - STL, San Antonio - SAT
Total Flights Available40 flights1 direct39 with layovers
First Flight DepartureDeparts at 05:00
Last Flight DepartureDeparts at 19:20
Early Morning Flights (12 AM - 8 AM)16 flights1 direct15 with layovers
Morning Flights (8 AM - 12 PM)9 flights0 direct9 with layovers
Afternoon Flights (12 PM - 4 PM)8 flights0 direct8 with layovers
Evening Flights (4 PM - 8 PM)7 flights0 direct7 with layovers
Night Flights (8 PM - 12 AM)No flights in this time slot

Airport Information & Terminals

STL: St. Louis airport. St. Louis airport transfer should be matched to the exact hotel, suburb or meeting area. Rail can work well for light luggage, but late arrivals, winter weather and family baggage often make a direct cab or booked transfer easier.

SAT: San Antonio airport. San Antonio airport transfer should be matched to the exact hotel, suburb or meeting area. Rail can work well for light luggage, but late arrivals, winter weather and family baggage often make a direct cab or booked transfer easier.

Try on mobile

Get the FlyX app

Live flight fares, instant e-tickets and trip updates, right on your phone.

Get it onGoogle Play
QR code to get the FlyX app on Google Play
Scan to download