St Louis to San Antonio (STL–SAT) — Airlines, Schedules & Connections

STL Airport Page →
787 mi airlines charter/private 15/wk
On-time Some delays Frequent delays
Flight Schedule 10 flights Verified 46m ago
Also flown by charter / private operators.
Nonstop Charter / private 1-Stop 2-Stop Hide separate tickets Hide overnight Hide codeshares
  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop
WN3978
WN Southwest
73H
8:10 AM
CDT T2
10:15 AM
CDT
2h 5m
46%
M T W T F S S
Prices
WN148
WN Southwest
73H
8:25 AM
CDT T2
10:35 AM
CDT
2h 10m
46%
M T W T F S S
Prices
WN1083
WN Southwest
7M8
2:20 PM
CDT T2
4:30 PM
CDT
2h 10m
46%
M T W T F S S
Prices
WN2363
WN Southwest
B38M
3:25 PM
CDT T2
5:35 PM
CDT
2h 10m
46%
M T W T F S S
Prices
WN3979
WN Southwest
738
6:47 PM
CDT T2
9:13 PM
CDT
2h 26m
46%
M T W T F S S
Prices
WN4809
WN Southwest
B38M
7:25 AM
CDT TA
9:35 AM
CDT
2h 10m
52%
M T W T F S S
Prices
WN1589
WN Southwest
7M8
7:40 AM
CDT TA
9:50 AM
CDT
2h 10m
52%
M T W T F S S
Prices
WN3504
WN Southwest
B38M
11:25 AM
CDT TA
1:35 PM
CDT
2h 10m
52%
M T W T F S S
Prices
WN174
WN Southwest
7S7
3:35 PM
CDT TA
5:45 PM
CDT
2h 10m
52%
M T W T F S S
Prices
WN3590
WN Southwest
738
5:45 PM
CDT TA
7:37 PM
CDT
1h 52m
52%
M T W T F S S
Prices

No flights match your filters.

No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.

✦ 1-Stop connections via 10 hubs
DAL Dallas 3h 35m EJALXJWN EJALXJWN Dallas (DAL) to San Antonio flights
DFW Dallas-Fort Worth 3h 59m AAASAY AAASAY Dallas-Fort Worth (DFW) to San Antonio flights
HOU Houston 4h 10m WN EJAVJAWN Houston (HOU) to San Antonio flights
IAH Houston 4h 14m CMNHNZ ACCMEK Houston (IAH) to San Antonio flights
ATL Atlanta 4h 58m AFAMDL AAAFAM Atlanta (ATL) to San Antonio flights
BNA Nashville 5h EJAWN WN Nashville (BNA) to San Antonio flights
MDW Chicago 5h 10m WN EJAKOWWN Chicago (MDW) to San Antonio flights
ORD Chicago 5h 21m AAACAS AAACAS Chicago (ORD) to San Antonio flights
MSP Minneapolis 5h 22m AFDLKE AFAMDL Minneapolis (MSP) to San Antonio flights
DEN Denver 5h 24m ACF9UA F9UAWN Denver (DEN) to San Antonio flights
1-STOP More options, longer trips
2-STOP Loading... Reach the hardest destinations
St Louis to San Antonio
1 carrier, 15 flights/week nonstop.
1 Airlines 787 mi 2h 10m nonstop

STL–SAT is served by 1 airline with nonstop service. Southwest Airlines leads the route. The flight covers 787 miles in approximately 2h 10m. Beyond nonstop, 1-stop connecting options are also available.

Airline Landscape

All carriers operating nonstop STL–SAT service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
WN Southwest Airlines 13 738, 73H, 7M8, B38M 2h05-2h26 89%
Aircraft on this route
738 Boeing 737-800 – WN
73H Boeing 737-800 (Winglets) – WN
7M8 Boeing 737 MAX 8 – WN
B38M Boeing 737 MAX 8 – WN
Alliance coverage
Unaffiliated: WN (13 flights/wk, 100%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.

Weekly Schedule Pattern

Nonstop flight frequency by day of week, STL to SAT direction.
Mon
2
flights
Tue
2
flights
Wed
2
flights
Thu
2
flights
Fri
2
flights
Sat
2
flights
Sun
1
flight
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
5
Nonstop flights
15
Outbound / wk
13
Return / wk

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for STL to SAT.
1-STOP
One-Stop Connections
48
Hubs
~3h
Fastest
~18h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
1,940
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.

On-Time Performance

What to expect at each end of your journey.
Outbound
STL → SAT
89%
Generally reliable. Most flights run on time.
Departing
89%
Arriving
34%
Return
SAT → STL
100%
Generally reliable. Most flights run on time.
Departing
100%
Arriving
92%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. STL delays → SAT delays →

Travel Essentials

Practical planning for this route.
Time Difference
0h
San Antonio is 0 hours the same as St Louis.
STL: CDT · SAT: CDT

When it's 6:00 PM in St Louis, it's 6:00 PM in San Antonio.
Distance & Flight Time
787 mi / 1,266 km
Nonstop flight time is approximately 2h 10m gate to gate.

STL–SAT Quick Facts

Key statistics for the St Louis to San Antonio route.
Route details
Distance787 mi / 1,266 km
Flight time2h 10m
Time difference0 hours
Airlines (nonstop)1
Weekly flights15 out / 13 return
1-stop connectionsAvailable
Origin: STL
IATA / ICAOSTL / KSTL
TimezoneAmerica/Chicago
Passengers/yr15.6M
Elevation618 ft / 188 m
Destination: SAT
IATA / ICAOSAT / KSAT
TimezoneAmerica/Chicago
Passengers/yr10.9M
Elevation809 ft / 247 m

Frequently Asked Questions

Common questions about STL to SAT flights.
Nonstop flights from St. Louis Lambert International Airport to San Antonio International Airport take about 2h 10m gate to gate. The route covers 787 miles.
1 airline operates flights from STL to SAT: Southwest Airlines.
This route has daily service. Check the schedule above for departure days and times in each direction.
Yes, 1-stop connections are available, ranked by layover time. Common connecting points include Dallas Love Field, Dallas Fort Worth and William P. Hobby.
Yes, return flights from SAT to STL are available. Use the direction toggle at the top to view the return schedule.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Flights from STL to SAT

St. Louis Lambert International Airport (STL) and San Antonio International Airport (SAT) are connected by nonstop service from Southwest Airlines. With 15 weekly departures, this is a well served route.

STL to SAT Flight Duration and Schedule

Nonstop flight time from STL to SAT is about 2 hours 10 minutes gate to gate. The route covers a distance of 787 miles (1,266 km). There are approximately 15 weekly flights outbound and 13 return, totaling 28 flights per week in both directions.

Connecting Options and Alternatives

1-stop connecting options are also available, commonly via Dallas Love Field, Dallas Fort Worth and William P. Hobby. Two-stop connections are also available via intermediate hubs.