Historical on-time performance
San Diego to Sacramento
Flights on SAN–SMF arrive on time 76% of the time over the last 12 months.
based on 5,134 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- SkyWest AirlinesOn-time77%Medianon timep9035 minCancel1.4%Flights1,194
- Southwest AirlinesOn-time76%Medianon timep9035 minCancel0.6%Flights3,818
- Alaska AirlinesOn-time75%Medianon timep9030 minCancel3.3%Flights122
Why flights run late
Delay causes
- Airline20%
- Weather1%
- Air traffic (NAS)9%
- Late aircraft69%
- Security1%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline25%
- Weather39%
- Air traffic (NAS)36%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 44 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly SAN → SMF
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 89% on time.
- Mornings89% on time · p90 15 min · 4,317 flights
- Middays78% on time · p90 35 min · 3,790 flights
- Afternoons73% on time · p90 40 min · 2,795 flights
- Evenings71% on time · p90 45 min · 3,106 flights
- Overnights65% on time · p90 50 min · 1,945 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 72% to 85% on time.
- Tuesdays85% on time · p90 20 min · 2,110 flights
- Wednesdays83% on time · p90 25 min · 2,096 flights
- Saturdays80% on time · p90 30 min · 1,682 flights
- Mondays75% on time · p90 40 min · 2,507 flights
- Thursdays75% on time · p90 40 min · 2,509 flights
- Sundays73% on time · p90 40 min · 2,516 flights
- Fridays72% on time · p90 45 min · 2,533 flights
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