Flight Reliability
AS 1392 · Alaska Airlines
San Diego → Portland (SAN–PDX)100% of its flights flew this route. The rest (SEA–SFO) are included in these numbers.
- 85%
- Arrive within 15 minutes
- 0 min
- Average arrival delay
- 0.5%
- Cancelled
- 7 min early
- Median arrival delay
Based on 213 historical flights. Data through May 2026.
What the data says
The 3–6 PM departure wins.
AS 1392 departing between 3–6 PM arrived on time 91% of the time, versus 84% between 6–9 PM.
Thursday is the weak spot.
AS 1392 arrived on time 90% of the time on Tuesdays. On Thursdays: 80%.
A bit ahead of the Alaska Airlines network.
AS 1392 arrived on time 85% of the time, versus 80% across the Alaska Airlines network.
Trending in the right direction.
AS 1392 arrived on time 94% of the time over the last three months in the data, compared with 77% in the three months before that.
The breakdown
- Mon83%(30 flights)
- Tue90%(31 flights)
- Wed87%(31 flights)
- Thu80%(30 flights)
- Fri87%(30 flights)
- Sat86%(29 flights)
- Sun81%(31 flights)
- 3–6 PM91%(35 flights)
- 6–9 PM84%(177 flights)
Nov 77% → May 100% on time
| Month | On-time percentage | Flights |
|---|---|---|
| November 2025 | 77% | 26 |
| December 2025 | 77% | 31 |
| January 2026 | 68% | 31 |
| February 2026 | 86% | 28 |
| March 2026 | 90% | 31 |
| April 2026 | 93% | 29 |
| May 2026 | 100% | 30 |
- Departures on time
- 76%
- Diverted
- 0%
- Flights flown
- 212
- Months covered
- 9
Same route, other flights
Keep nerding
Based on 213 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.