Historical on-time performance
Salt Lake City to Sacramento
532 miData through Dec 2025Source: US DOT · BTS
Flights on SLC–SMF arrive on time 85% of the time over the last 12 months.
On-time rate85%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled0.2%of scheduled flights
based on 2,026 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Delta Air LinesbestOn-time87%Medianon timep9020 minCancel0.3%Flights1,507
- Southwest AirlinesOn-time81%Medianon timep9035 minCancel0.0%Flights519
Why flights run late
Delay causes
- Airline55%
- Weather1%
- Air traffic (NAS)6%
- Late aircraft38%
- Security0%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly SLC → SMF
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 91% on time.
- Mornings91% on time · p90 5 min · 1,144 flights
- Middays86% on time · p90 20 min · 1,436 flights
- Afternoons84% on time · p90 30 min · 1,375 flights
- Overnights84% on time · p90 25 min · 1,132 flights
- Evenings79% on time · p90 35 min · 896 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 83% to 87% on time.
- Tuesdays87% on time · p90 20 min · 858 flights
- Wednesdays87% on time · p90 20 min · 854 flights
- Thursdays86% on time · p90 20 min · 870 flights
- Fridays85% on time · p90 25 min · 877 flights
- Mondays85% on time · p90 25 min · 883 flights
- Sundays83% on time · p90 25 min · 889 flights
- Saturdays83% on time · p90 35 min · 752 flights
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