Phoenix (PHX) to San Luis Obispo (SBP): On-Time Performance
Data through May 2026
The calendar drives reliability on PHX–SBP. January 2025 flights landed on schedule 93% of the time, but July 2025 dropped to 69% — a gap of 24 points. Across the full period the route averages 82% on-time against a national 78%. Morning departures also hold up better than evening ones (89% vs 77%), which matters most in the rough months.
- On-time
- 82%
- arrived <15 min late
- Avg delay
- 13 min
- completed flights
- Cancelled
- 0.5%
- Flights/day
- 3.4
- last 12 months
- Duration
- 1h 46m
- scheduled
- Distance
- 509 mi
Best airline from PHX to SBP
3 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Envoy Airmost reliable | 89% | 6 min | 0.5% | 658 |
| SkyWest Airlines | 80% | 13 min | 0.6% | 950 |
| American Airlines | 80% | 19 min | 0.5% | 828 |
Monthly on-time trend
Best time to fly from PHX to SBP
Aim for departures around 11 a.m. (91% on-time); avoid 9 p.m. departures (68%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 81% | 15 min |
| Tuesdaybest | 88% | 9 min |
| Wednesday | 82% | 15 min |
| Thursday | 81% | 11 min |
| Friday | 83% | 13 min |
| Saturday | 81% | 12 min |
| Sunday | 80% | 18 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft46%
- Airline operations45%
- National airspace system8%
- Weather1%
Frequently asked questions
- How often are flights from PHX to SBP delayed?
- 18% of PHX–SBP flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 13 minutes.
- Which airline is most reliable from PHX to SBP?
- Envoy Air has the best on-time record on this route at 89%, based on 658 flights. 3 airlines flew PHX–SBP frequently enough to compare in this period.
- What is the best time of day to fly from PHX to SBP?
- Departures around 11 a.m. have the best record (91% on-time), while departures around 9 p.m. have the worst (68%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from PHX to SBP?
- The scheduled PHX–SBP flight time averages 1h 46m over 509 miles. Actual arrival times vary — flights on this route land 15+ minutes late 18% of the time.
- How often are PHX to SBP flights cancelled?
- 0.5% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from PHX to SBP?
- July 2025 was the roughest month in this dataset, with only 69% of arrivals on time. The best was January 2025 at 93%. If your dates are flexible, that 24-point gap is worth planning around.
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Based on 2,436 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.