Historical on-time performance
Oakland to Salt Lake City
588 miData through May 2026Source: US DOT · BTS
Flights on OAK–SLC arrive on time 89% of the time over the last 12 months.
On-time rate89%arrived within 15 min
p90 delay15 min1 in 10 flights is worse (tail risk)
Cancelled0.1%of scheduled flights
based on 1,689 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- SkyWest AirlinesbestOn-time94%Medianon timep905 minCancel0.2%Flights1,067
- Southwest AirlinesOn-time80%Medianon timep9045 minCancel0.0%Flights622
Why flights run late
Delay causes
- Airline49%
- Weather7%
- Air traffic (NAS)3%
- Late aircraft40%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather0%
- Air traffic (NAS)100%
- Security0%
Most cancellations here are attributed to Air traffic (NAS). Shares are among 2 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 OAK → 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 — 95% on time.
- Mornings95% on time · p90 on time · 1,957 flights
- Middays92% on time · p90 10 min · 1,541 flights
- Afternoons86% on time · p90 20 min · 498 flights
- Evenings86% on time · p90 20 min · 1,187 flights
- Overnights66% on time · p90 70 min · 517 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 86% to 93% on time.
- Tuesdays93% on time · p90 5 min · 820 flights
- Saturdays92% on time · p90 5 min · 683 flights
- Wednesdays91% on time · p90 10 min · 814 flights
- Fridays88% on time · p90 15 min · 874 flights
- Mondays87% on time · p90 20 min · 868 flights
- Thursdays86% on time · p90 20 min · 868 flights
- Sundays86% on time · p90 25 min · 773 flights
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