Flight Reliability
AS 1132 · Alaska Airlines
Seattle → San Francisco (SEA–SFO)95% of its flights flew this route. The rest (HNL–ITO) are included in these numbers.
68
Usually Fine
WanderNerd Reliability Score
- 66%
- Arrive within 15 minutes
- 12 min
- Average arrival delay
- 1.4%
- Cancelled
- 4 min
- Median arrival delay
Based on 148 historical flights. Data through May 2026.
What the data says
The 3–6 PM departure wins.
AS 1132 departing between 3–6 PM arrived on time 70% of the time, versus 60% between 9 AM–12 PM.
Monday is the weak spot.
AS 1132 arrived on time 73% of the time on Thursdays. On Mondays: 62%.
A bit behind the SEA–SFO route.
AS 1132 arrived on time 66% of the time, versus 70% across the SEA–SFO route.
Lagging the Alaska Airlines network.
AS 1132 arrived on time 66% of the time, versus 80% across the Alaska Airlines network.
The breakdown
- Mon62%(21 flights)
- Tue64%(22 flights)
- Wed67%(21 flights)
- Thu73%(22 flights)
- Fri64%(22 flights)
- Sat69%(16 flights)
- Sun68%(22 flights)
- 9 AM–12 PM60%(10 flights)
- 12–3 PM67%(126 flights)
- 3–6 PM70%(10 flights)
67%
Oct
Jun 62% → Oct 67% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 62% | 29 |
| July 2025 | 63% | 30 |
| August 2025 | 66% | 29 |
| September 2025 | 77% | 26 |
| October 2025 | 67% | 24 |
- Departures on time
- 68%
- Diverted
- 0%
- Flights flown
- 146
- Months covered
- 7
Same route, other flights
Keep nerding
Based on 148 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.