WN1921 Flight Status Southwest Airlines: San Antonio to Houston (SWA1921)
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WN 1921 San Antonio to Houston Flight Status
Not scheduled today (November 6th, 2026). Latest flight: September 28th, 2026 ; recent history is in the table below.
WN 1921 Flight Status & Schedule Southwest Airlines San Antonio to Houston
| Date | From | To | Departure | Arrival | Status | Details |
|---|---|---|---|---|---|---|
| Sep 28 | SAT | HOU | 18:53 | 19:27 | Landed | Track > |
| Sep 25 | SAT | HOU | 19:09 | 19:47 | Landed | Track > |
| Sep 24 | SAT | HOU | 19:34 | 20:08 | Landed | Track > |
| Sep 21 | SAT | HOU | 19:08 | 19:42 | Landed | Track > |
| Sep 18 | SAT | HOU | 18:52 | 19:29 | Landed | Track > |
| Sep 17 | SAT | HOU | 19:51 | 20:26 | Landed Late | Track > |
| Sep 14 | SAT | HOU | 18:56 | 19:31 | Landed | Track > |
| Sep 11 | SAT | HOU | 19:24 | 20:00 | Landed | Track > |
| Sep 10 | SAT | HOU | 18:52 | 19:31 | Landed | Track > |
| Sep 07 | SAT | HOU | 19:18 | 19:51 | Landed | Track > |
Southwest Airlines flight WN 1921 links San Antonio and Houston, 309 km (192 mi) apart. Its timetable allows 1 h 5 min; in practice it usually takes about 35 min, so it often makes up time. It is not flying today; the last flight, on 28 September 2026, landed on time.
About WN 1921
- Distance
- 309 km (192 mi)
- Typical flight time
- 35 min
- On time
- 9 of the last 10
- Average delay when late
- 31 min
- Usually departs from
- Terminal A
WN 1921 FAQ
- How long is the WN1921 flight?
- The timetable allows 1 h 5 min. San Antonio to Houston is 309 km (192 mi).
- How often is WN1921 late?
- 1 of the last 10 flights arrived 15 or more minutes late; when late, by 31 minutes on average.
- Which terminal does WN1921 use?
- It usually leaves from Terminal A at San Antonio International Airport (SAT). Check the flight card above for today's terminal and gate.
- What other flight numbers does WN1921 have?
- Also listed as SWA1921 (Southwest Airlines' ICAO code) and WN 1921.
WN1921 and San Antonio SAT to Houston HOU Flights
Other flights departing from San Antonio SAT: WN4724, MQ4176, MQ3742, WN4485
Other flights arriving at Houston HOU: WN1788, WN1030, WN4104
All flights connecting San Antonio SAT to Houston HOU.