Alaska Airlines SEA to SMF on-time performance
Alaska Airlines nonstop flights from Seattle to Sacramento · Aug 2025 – Jul 2026
On-time arrivals
80%
arrived < 15 min late
Cancelled
0.5%
7 flights
Avg arrival delay
10 min
45 min when late
Rank on route
#2 of 3
route average 82% on time
Key facts
- Alaska Airlines flights on SEA to SMF arrived on time 80% of the time in Aug 2025 – Jul 2026.
- 0.5% were cancelled, and 4% arrived an hour or more late.
- That ranks #2 of 3 airlines on this route, which averaged 82% on time overall.
- The largest source of delay minutes was late-arriving aircraft (47%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft47%
- Airline (crew, maintenance, cleaning, fueling)39%
- Air traffic control & airport congestion11%
- Extreme weather2%
- Security0%
Other airlines on SEA to SMF
- SkyWest Airlines89% on time · 7 min avg delay
- Southwest Airlines73% on time · 14 min avg delay
Full SEA to SMF comparison →
Alaska Airlines on-time record across all routes →
1,353 Alaska Airlines flights tracked on this route; 7 cancelled, 2 diverted.
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.