Historical on-time performance
Salt Lake City to Sacramento
532 miData through May 2026Source: US DOT · BTS
Flights on SLC–SMF arrive on time 86% of the time over the last 12 months.
On-time rate86%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled0.7%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-time87%Medianon timep9020 minCancel0.8%Flights1,510
- Southwest AirlinesOn-time82%Medianon timep9030 minCancel0.3%Flights573
Why flights run late
Delay causes
- Airline51%
- Weather1%
- Air traffic (NAS)5%
- Late aircraft43%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline93%
- Weather7%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 14 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 SLC → 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 — 92% on time.
- Mornings92% on time · p90 5 min · 1,196 flights
- Middays86% on time · p90 20 min · 1,381 flights
- Overnights84% on time · p90 25 min · 1,184 flights
- Afternoons84% on time · p90 30 min · 1,381 flights
- Evenings79% on time · p90 35 min · 955 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 84% to 87% on time.
- Tuesdays87% on time · p90 20 min · 866 flights
- Wednesdays87% on time · p90 20 min · 860 flights
- Mondays85% on time · p90 25 min · 898 flights
- Thursdays85% on time · p90 25 min · 896 flights
- Fridays85% on time · p90 25 min · 905 flights
- Sundays85% on time · p90 25 min · 912 flights
- Saturdays84% on time · p90 30 min · 760 flights
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