Historical on-time performance
San Luis Obispo to Phoenix
509 miData through May 2026Source: US DOT · BTS
Flights on SBP–PHX arrive on time 82% of the time over the last 12 months.
On-time rate82%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.8%of scheduled flights
based on 1,015 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Envoy AirbestOn-time88%Medianon timep9015 minCancel1.1%Flights263
- American AirlinesOn-time81%Medianon timep9060 minCancel0.9%Flights465
- SkyWest AirlinesOn-time79%Medianon timep9045 minCancel0.3%Flights287
Why flights run late
Delay causes
- Airline55%
- Weather14%
- Air traffic (NAS)7%
- Late aircraft22%
- Security2%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline25%
- Weather25%
- Air traffic (NAS)50%
- Security0%
Most cancellations here are attributed to Air traffic (NAS). Shares are among 8 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 SBP → PHX
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 — 88% on time.
- Mornings88% on time · p90 15 min · 1,200 flights
- Middays84% on time · p90 25 min · 1,106 flights
- Evenings83% on time · p90 25 min · 346 flights
- Afternoons80% on time · p90 45 min · 867 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 81% to 89% on time.
- Tuesdays89% on time · p90 15 min · 450 flights
- Wednesdays85% on time · p90 25 min · 477 flights
- Fridays85% on time · p90 20 min · 525 flights
- Mondays84% on time · p90 30 min · 509 flights
- Thursdays84% on time · p90 25 min · 531 flights
- Saturdays84% on time · p90 30 min · 486 flights
- Sundays81% on time · p90 35 min · 545 flights
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