Flight Reliability
AS 1217 · Alaska Airlines
Sacramento → Seattle (SMF–SEA)
93
Nerd Approved
WanderNerd Reliability Score
- 93%
- Arrive within 15 minutes
- 3 min early
- Average arrival delay
- 1.9%
- Cancelled
- 6 min early
- Median arrival delay
Based on 108 historical flights. Data through May 2026.
What the data says
Monday is the weak spot.
AS 1217 arrived on time 100% of the time on Sundays. On Mondays: 89%.
Better than the SMF–SEA route average.
AS 1217 arrived on time 93% of the time, versus 83% across the SMF–SEA route.
Better than the Alaska Airlines network average.
AS 1217 arrived on time 93% of the time, versus 80% across the Alaska Airlines network.
The breakdown
- Mon89%(18 flights)
- Tue90%(10 flights)
- Wed—(9 flights)
- Thu90%(20 flights)
- Fri90%(19 flights)
- Sat95%(20 flights)
- Sun100%(10 flights)
93%
Oct
Jun 90% → Oct 93% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 90% | 19 |
| July 2025 | 97% | 30 |
| August 2025 | 96% | 26 |
| September 2025 | 82% | 17 |
| October 2025 | 93% | 14 |
- Departures on time
- 95%
- Diverted
- 0%
- Flights flown
- 106
- Months covered
- 5
Same route, other flights
Keep nerding
Based on 108 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.