Flight Reliability
AA 1633 · American Airlines
San Diego → Philadelphia (SAN–PHL)
57
A Little Dicey
WanderNerd Reliability Score
- 80%
- Arrive within 15 minutes
- 7 min
- Average arrival delay
- 2.6%
- Cancelled
- 7 min early
- Median arrival delay
Based on 155 historical flights. Data through May 2026.
What the data says
Friday is doing you no favors.
AA 1633 arrived on time 85% of the time on Saturdays. On Fridays: 73%.
Lagging the SAN–PHL route.
AA 1633 arrived on time 80% of the time, versus 88% across the SAN–PHL route.
A bit ahead of the American Airlines network.
AA 1633 arrived on time 80% of the time, versus 77% across the American Airlines network.
The breakdown
- Mon81%(21 flights)
- Tue81%(21 flights)
- Wed84%(19 flights)
- Thu81%(21 flights)
- Fri73%(22 flights)
- Sat85%(20 flights)
- Sun79%(19 flights)
81%
Mar
Nov 83% → Mar 81% on time
| Month | On-time percentage | Flights |
|---|---|---|
| November 2025 | 83% | 24 |
| December 2025 | 89% | 27 |
| January 2026 | 76% | 29 |
| February 2026 | 73% | 26 |
| March 2026 | 81% | 31 |
- Departures on time
- 79%
- Diverted
- 5.2%
- Flights flown
- 143
- Months covered
- 6
Same route, other flights
Keep nerding
Based on 155 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.