Flight Reliability
AS 1540 · Alaska Airlines
Seattle → Sacramento (SEA–SMF)98% of its flights flew this route. The rest (SEA–ANC) are included in these numbers.
98
Nerd Approved
WanderNerd Reliability Score
- 90%
- Arrive within 15 minutes
- 7 min early
- Average arrival delay
- 0%
- Cancelled
- 10 min early
- Median arrival delay
Based on 41 historical flights. Data through May 2026.
What the data says
Better than the SEA–SMF route average.
AS 1540 arrived on time 90% of the time, versus 82% across the SEA–SMF route.
Better than the Alaska Airlines network average.
AS 1540 arrived on time 90% of the time, versus 80% across the Alaska Airlines network.
The breakdown
- Mon—(5 flights)
- Tue—(6 flights)
- Wed—(6 flights)
- Thu—(6 flights)
- Fri—(6 flights)
- Sat—(6 flights)
- Sun—(6 flights)
- 9 AM–12 PM90%(40 flights)
- 9 PM–12 AM—(1 flights)
- Departures on time
- 85%
- Diverted
- 0%
- Flights flown
- 41
- Months covered
- 3
Same route, other flights
Keep nerding
Based on 41 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.