Flight Reliability
AS 1281 · Alaska Airlines
Sacramento → Seattle (SMF–SEA)
87
Pretty Reliable
WanderNerd Reliability Score
- 82%
- Arrive within 15 minutes
- 3 min
- Average arrival delay
- 0.8%
- Cancelled
- 3 min early
- Median arrival delay
Based on 130 historical flights. Data through May 2026.
What the data says
Morning-you made the right choice.
AS 1281 departing between 9 AM–12 PM arrived on time 90% of the time, versus 75% between 12–3 PM.
Thursdays have been rough.
AS 1281 arrived on time 95% of the time on Wednesdays and just 70% on Thursdays. That gap is worth planning around.
The breakdown
- Mon79%(19 flights)
- Tue90%(19 flights)
- Wed95%(19 flights)
- Thu70%(20 flights)
- Fri85%(20 flights)
- Sat85%(13 flights)
- Sun74%(19 flights)
- 9 AM–12 PM90%(61 flights)
- 12–3 PM75%(68 flights)
88%
Oct
Jun 58% → Oct 88% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 58% | 19 |
| July 2025 | 83% | 30 |
| August 2025 | 76% | 29 |
| September 2025 | 100% | 26 |
| October 2025 | 88% | 25 |
- Departures on time
- 80%
- Diverted
- 0%
- Flights flown
- 129
- Months covered
- 5
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.