Historical on-time performance
Salt Lake City to San Diego
Flights on SLC–SAN arrive on time 83% of the time over the last 12 months.
based on 2,757 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-time85%Medianon timep9020 minCancel1.1%Flights617
- Delta Air LinesOn-time84%Medianon timep9025 minCancel0.6%Flights1,732
- Southwest AirlinesOn-time74%Medianon timep9040 minCancel0.2%Flights408
Why flights run late
Delay causes
- Airline39%
- Weather4%
- Air traffic (NAS)24%
- Late aircraft33%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline42%
- Weather37%
- Air traffic (NAS)21%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 19 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 → SAN
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 — 87% on time.
- Mornings87% on time · p90 20 min · 1,556 flights
- Overnights84% on time · p90 20 min · 1,148 flights
- Middays82% on time · p90 25 min · 2,540 flights
- Afternoons79% on time · p90 35 min · 1,427 flights
- Evenings75% on time · p90 45 min · 1,301 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 77% to 87% on time.
- Tuesdays87% on time · p90 20 min · 1,100 flights
- Mondays84% on time · p90 20 min · 1,172 flights
- Wednesdays83% on time · p90 25 min · 1,102 flights
- Saturdays82% on time · p90 30 min · 1,032 flights
- Thursdays80% on time · p90 30 min · 1,151 flights
- Sundays78% on time · p90 35 min · 1,234 flights
- Fridays77% on time · p90 40 min · 1,181 flights
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