Flight Reliability
AS 3458 · Alaska Airlines
San Jose → San Diego (SJC–SAN)
88
Pretty Reliable
WanderNerd Reliability Score
- 88%
- Arrive within 15 minutes
- 3 min
- Average arrival delay
- 1.7%
- Cancelled
- 6 min early
- Median arrival delay
Based on 298 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
AS 3458 arrived on time 93% of the time on Thursdays. On Sundays: 84%.
Better than the SJC–SAN route average.
AS 3458 arrived on time 88% of the time, versus 75% across the SJC–SAN route.
Better than the Alaska Airlines network average.
AS 3458 arrived on time 88% of the time, versus 80% across the Alaska Airlines network.
Ticking up lately.
AS 3458 arrived on time 91% of the time over the last three months in the data, compared with 84% in the three months before that.
The breakdown
- Mon91%(43 flights)
- Tue88%(42 flights)
- Wed91%(42 flights)
- Thu93%(40 flights)
- Fri86%(44 flights)
- Sat86%(36 flights)
- Sun84%(45 flights)
90%
May
Jun 97% → May 90% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 97% | 30 |
| July 2025 | 90% | 31 |
| August 2025 | 94% | 31 |
| September 2025 | 90% | 29 |
| October 2025 | 79% | 29 |
| November 2025 | 79% | 29 |
| December 2025 | 86% | 28 |
| February 2026 | 87% | 15 |
| March 2026 | 90% | 29 |
| April 2026 | 92% | 26 |
| May 2026 | 90% | 10 |
- Departures on time
- 93%
- Diverted
- 0.3%
- Flights flown
- 292
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 298 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.