Alaska Airlines SMF to SEA on-time performance
Alaska Airlines nonstop flights from Sacramento to Seattle · Aug 2025 – Jul 2026
On-time arrivals
80%
arrived < 15 min late
Cancelled
0.5%
7 flights
Avg arrival delay
10 min
44 min when late
Rank on route
#2 of 3
route average 83% on time
Key facts
- Alaska Airlines flights on SMF to SEA arrived on time 80% of the time in Aug 2025 – Jul 2026.
- 0.5% were cancelled, and 3% arrived an hour or more late.
- That ranks #2 of 3 airlines on this route, which averaged 83% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (38%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion38%
- Airline (crew, maintenance, cleaning, fueling)33%
- Late-arriving aircraft28%
- Extreme weather0%
- Security0%
Other airlines on SMF to SEA
- SkyWest Airlines87% on time · 8 min avg delay
- Southwest Airlines78% on time · 11 min avg delay
Full SMF to SEA comparison →
Alaska Airlines on-time record across all routes →
1,352 Alaska Airlines flights tracked on this route; 7 cancelled, 1 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.