Historical on-time performance
Sacramento to Salt Lake City
532 miData through May 2026Source: US DOT · BTS
Flights on SMF–SLC arrive on time 87% of the time over the last 12 months.
On-time rate87%arrived within 15 min
p90 delay20 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights
based on 2,083 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Delta Air LinesbestOn-time89%Medianon timep9010 minCancel0.8%Flights1,510
- Southwest AirlinesOn-time82%Medianon timep9035 minCancel0.2%Flights573
Why flights run late
Delay causes
- Airline36%
- Weather0%
- Air traffic (NAS)4%
- Late aircraft60%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline92%
- Weather8%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 13 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 SMF → SLC
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 — 94% on time.
- Mornings94% on time · p90 on time · 1,953 flights
- Middays89% on time · p90 15 min · 2,309 flights
- Evenings83% on time · p90 35 min · 1,517 flights
- Afternoons77% on time · p90 35 min · 240 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 87% to 90% on time.
- Wednesdays90% on time · p90 10 min · 860 flights
- Tuesdays89% on time · p90 15 min · 866 flights
- Sundays89% on time · p90 15 min · 912 flights
- Thursdays89% on time · p90 15 min · 896 flights
- Mondays88% on time · p90 15 min · 898 flights
- Saturdays88% on time · p90 15 min · 760 flights
- Fridays87% on time · p90 20 min · 905 flights
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