Flight Reliability
AS 25 · Alaska Airlines
New York → San Diego (JFK–SAN)
72
Usually Fine
WanderNerd Reliability Score
- 73%
- Arrive within 15 minutes
- 7 min
- Average arrival delay
- 2.0%
- Cancelled
- 0 min
- Median arrival delay
Based on 357 historical flights. Data through May 2026.
What the data says
Morning flights do better here.
AS 25 departing between 9 AM–12 PM arrived on time 95% of the time, versus 72% between 3–6 PM.
Thursdays have been rough.
AS 25 arrived on time 80% of the time on Wednesdays and just 63% on Thursdays. That gap is worth planning around.
Lagging the JFK–SAN route.
AS 25 arrived on time 73% of the time, versus 80% across the JFK–SAN route.
Lagging the Alaska Airlines network.
AS 25 arrived on time 73% of the time, versus 80% across the Alaska Airlines network.
The breakdown
- Mon72%(50 flights)
- Tue80%(49 flights)
- Wed80%(51 flights)
- Thu63%(51 flights)
- Fri74%(50 flights)
- Sat68%(47 flights)
- Sun73%(51 flights)
- 9 AM–12 PM95%(19 flights)
- 3–6 PM72%(330 flights)
89%
May
Jun 43% → May 89% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 43% | 30 |
| July 2025 | 55% | 29 |
| August 2025 | 65% | 31 |
| September 2025 | 57% | 28 |
| October 2025 | 55% | 31 |
| November 2025 | 86% | 29 |
| December 2025 | 83% | 30 |
| January 2026 | 77% | 30 |
| February 2026 | 88% | 25 |
| March 2026 | 90% | 31 |
| April 2026 | 89% | 28 |
| May 2026 | 89% | 27 |
- Departures on time
- 79%
- Diverted
- 0.3%
- Flights flown
- 349
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 357 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.