Departure
Scheduled departure: 2026-10-29 15:05 (UTC-05:00). Confirm airport transport and terminal opening hours in advance.
WN2121 William P. Hobby Airport to San Antonio International Airport nonstop flight: schedule, airports, aircraft and travel guide.
WN2121 Flight Overview
WN2121 is operated by Southwest Airlines and connects William P. Hobby Airport (HOU) and San Antonio International Airport (SAT). Scheduled departure: 2026-10-29 15:05 (UTC-05:00); scheduled arrival: 2026-10-29 16:05 (UTC-05:00).
AirlineSouthwest Airlines
Flight numberWN2121
RouteHOU to SAT
Scheduled duration1 hr
Houston to San Antonio Route Information
WN2121 is a nonstop flight from William P. Hobby Airport (HOU) to San Antonio International Airport (SAT). Use the information below to plan your journey.
Route distanceApprox. 309 km
Scheduled flight time1 hr
Time difference0 min
Flight typenonstop
Arrival
Scheduled arrival: 2026-10-29 16:05 (UTC-05:00). Arrange pickup, hotel and onward transport for the arrival date.
Time zones
Departure: Houston (UTC-05:00); arrival: San Antonio (UTC-05:00).
WN2121 On-time Performance & History
Methodology
Arrival on-time rate
Sample flights-
Average departure delay-
Average arrival early-
Cancllation rate-
Longest delay-
Early arrivals-
Historical statistics are for reference only and do not predict future flight performance.
Aircraft, Cabin & Services
Based on currently published aircraft and cabin information; the operating aircraft may change.
Published aircraft type
Boeing 737-700 (Scimitar Winglets) Pax
Economy 31 in; Business 37 in
Business 12 · Economy 125
37 in
Seat configuration depends on the operating aircraft
31 in
Availability and fees depend on the flight
WN2121 Airports
Terminals follow the published schedule; check official airline channels for same-day gates and operations.
HOUWilliam P. Hobby Airport
Houston, United States · UTC-05:00
- Departure terminal
- Check-in counter
- Announced on the day
SATSan Antonio International Airport
San Antonio · UTC-05:00
- Arrival terminal
- Baggage belt
- Announced on the day
William P. Hobby Airport Departure & San Antonio International Airport Arrival Guide
Departure date: 2026-10-29. Terminal and arrival information helps plan your journey.
Departing from William P. Hobby Airport
WN2121 is scheduled to depart from . Allow time for international check-in, baggage drop, security and immigration.
Arriving at San Antonio International Airport
Scheduled arrival is at . After immigration, take the MRT, taxi, ride-hailing service or airport bus to the city.
Planning your arrival
Scheduled arrival: 2026-10-29 16:05. Use the arrival date when booking hotels and pickup services.
Flight Changes, Cancellations & Missed Flights
If the schedule or aircraft changes, follow the booking channel and operating carrier rules.
Schedule changes
After an airline or booking-platform notice, confirm the new date, terminal and connecting transport.
Cancellation and changes
Refund, rebooking and involuntary-change rules depend on the booking channel, fare conditions and airline notice.
Missed flight
If you may not reach the airport on time, contact the booking channel or airline quickly to protect later sectors.
Check-in, Baggage & Entry Tips
International check-in deadlines, baggage allowance and entry requirements may vary by fare and traveller.
Arrive early for check-in
Arrive at least 3 hours before departure. Counter opening times and online check-in rules follow William P. Hobby Airport guidance.
Check baggage allowance
Checked and carry-on baggage allowances depend on cabin, fare rules and membership tier. See the baggage terms in your booking.
Prepare entry documents
Before departure, check passport validity, visa or visa-free eligibility, andSan Antonio International Airport’ latest arrival declaration requirements.
What should I check before flying WN2121?
Check the departure date
For an overnight flight, check the departure date on your ticket and plan airport transport in advance.
Confirm the operating carrier
Follow the airline rules shown in your booking for check-in and checked baggage.
Check boarding information
Gates and operating times may change; follow airline notices and airport displays.
Popular route recommendations
WN2121 Frequently Asked Questions
Which airline operates this flight?
WN2121 is operated by Southwest Airlines.
Where does it depart and arrive?
William P. Hobby Airport (HOU) → San Antonio International Airport (SAT).
What are the departure and arrival times?
Scheduled departure 15:05, arrival 16:05 · 1 hour.
Which terminal is used for check-in?
Departure terminal No data, arrival terminal No data. Check-in, gate and baggage belt are announced on the day.
Are meals and inflight entertainment available?
Meals: Free snacks and drinks on most flights; premium drinks for purchase. Inflight entertainment: Streaming to personal devices; no seatback screens.
Explore This Route
Departure airportFlights from William P. Hobby Airport
Arrival airportSan Antonio International Airport information
Operating airlineSouthwest Airlines information