Flight Reliability
AS 1341 · Alaska Airlines
Seattle → San Jose (SEA–SJC)91% of its flights flew this route. The rest (SJC–PDX) are included in these numbers.
91
Nerd Approved
WanderNerd Reliability Score
- 93%
- Arrive within 15 minutes
- 7 min early
- Average arrival delay
- 2.5%
- Cancelled
- 11 min early
- Median arrival delay
Based on 203 historical flights. Data through May 2026.
What the data says
Morning flights do better here.
AS 1341 departing between 6–9 AM arrived on time 95% of the time, versus 79% between 6–9 PM.
Thursday is the weak spot.
AS 1341 arrived on time 100% of the time on Fridays. On Thursdays: 86%.
Better than the SEA–SJC route average.
AS 1341 arrived on time 93% of the time, versus 82% across the SEA–SJC route.
Better than the Alaska Airlines network average.
AS 1341 arrived on time 93% of the time, versus 80% across the Alaska Airlines network.
The breakdown
- Mon87%(31 flights)
- Tue92%(26 flights)
- Wed96%(27 flights)
- Thu86%(29 flights)
- Fri100%(30 flights)
- Sat93%(27 flights)
- Sun96%(28 flights)
- 6–9 AM95%(174 flights)
- 6–9 PM79%(24 flights)
100%
May
Nov 93% → May 100% on time
| Month | On-time percentage | Flights |
|---|---|---|
| November 2025 | 93% | 30 |
| December 2025 | 90% | 29 |
| January 2026 | 93% | 29 |
| February 2026 | 92% | 24 |
| March 2026 | 80% | 25 |
| April 2026 | 100% | 28 |
| May 2026 | 100% | 27 |
- Departures on time
- 93%
- Diverted
- 0%
- Flights flown
- 198
- Months covered
- 8
Same route, other flights
Keep nerding
Based on 203 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.