Flight Reliability
WN 4996 · Southwest Airlines
San Antonio → Dallas (SAT–DAL)93% of its flights flew this route. The rest (DAL–MSY, RNO–PHX) are included in these numbers.
89
Pretty Reliable
WanderNerd Reliability Score
- 95%
- Arrive within 15 minutes
- 4 min early
- Average arrival delay
- 3.4%
- Cancelled
- 7 min early
- Median arrival delay
Based on 59 historical flights. Data through May 2026.
What the data says
Morning flights do better here.
WN 4996 departing between 3–6 AM arrived on time 100% of the time, versus 89% between 12–3 PM.
Better than the SAT–DAL route average.
WN 4996 arrived on time 95% of the time, versus 84% across the SAT–DAL route.
Well ahead of the Southwest Airlines network.
WN 4996 arrived on time 95% of the time, versus 78% across the Southwest Airlines network.
The breakdown
- Mon—(8 flights)
- Tue—(9 flights)
- Wed—(9 flights)
- Thu—(8 flights)
- Fri—(7 flights)
- Sat—(8 flights)
- Sun—(8 flights)
- 3–6 AM100%(22 flights)
- 6–9 AM—(8 flights)
- 12–3 PM89%(27 flights)
- Departures on time
- 95%
- Diverted
- 0%
- Flights flown
- 57
- Months covered
- 4
Same route, other flights
Keep nerding
Based on 59 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.