Flight Reliability
AS 1080 · Alaska Airlines
Seattle → San Jose (SEA–SJC)85% of its flights flew this route. The rest (SJC–SEA, LIH–HNL) are included in these numbers.
81
Pretty Reliable
WanderNerd Reliability Score
- 79%
- Arrive within 15 minutes
- 3 min
- Average arrival delay
- 1.5%
- Cancelled
- 3 min early
- Median arrival delay
Based on 130 historical flights. Data through May 2026.
What the data says
12–3 PM has a slight edge.
Departures between 12–3 PM arrived on time 84% of the time, against 78% between 9 AM–12 PM.
Sunday scaries are real for this one.
AS 1080 arrived on time 90% of the time on Mondays and just 67% on Sundays. That gap is worth planning around.
A bit behind the SEA–SJC route.
AS 1080 arrived on time 79% of the time, versus 82% across the SEA–SJC route.
The breakdown
- Mon90%(19 flights)
- Tue90%(19 flights)
- Wed77%(22 flights)
- Thu76%(21 flights)
- Fri81%(21 flights)
- Sat—(5 flights)
- Sun67%(21 flights)
- 9 AM–12 PM78%(109 flights)
- 12–3 PM84%(19 flights)
91%
Oct
Jun 72% → Oct 91% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 72% | 25 |
| July 2025 | 79% | 24 |
| August 2025 | 78% | 27 |
| September 2025 | 80% | 30 |
| October 2025 | 91% | 21 |
- Departures on time
- 83%
- Diverted
- 0%
- Flights flown
- 128
- Months covered
- 6
Same route, other flights
Keep nerding
Based on 130 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.