Historical on-time performance
Seattle to Sacramento
605 miData through Dec 2025Source: US DOT · BTS
Flights on SEA–SMF arrive on time 79% of the time over the last 12 months.
On-time rate79%arrived within 15 min
Median delayon timetypical arrival
p90 delay35 min1 in 10 flights is worsetail risk
Cancelled0.4%of scheduled flights
based on 4,298 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- SkyWest AirlinesbestOn-time88%Medianon timep9015 minCancel0.1%Flights1,970
- Southwest AirlinesOn-time73%Medianon timep9040 minCancel0.5%Flights1,170
- Alaska AirlinesOn-time70%Medianon timep9040 minCancel0.9%Flights1,158
Why flights run late
Delay causes
- Airline37%
- Weather5%
- Air traffic (NAS)10%
- Late aircraft47%
- Security1%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
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