Phoenix (PHX) to San Jose (SJC): On-Time Performance
Data through July 2026
The calendar drives reliability on PHX–SJC. September 2025 flights landed on schedule 90% of the time, but June 2026 dropped to 68% — a gap of 22 points. Across the full period the route averages 81% on-time against a national 78%. Morning departures also hold up better than evening ones (90% vs 70%), which matters most in the rough months.
- On-time
- 81%
- arrived <15 min late
- Avg delay
- 12 min
- completed flights
- Cancelled
- 0.4%
- Flights/day
- 8.2
- last 12 months
- Duration
- 1h 58m
- scheduled
- Distance
- 621 mi
Best airline from PHX to SJC
5 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Frontier Airlinesmost reliable | 87% | 11 min | 0.5% | 188 |
| Envoy Air | 86% | 7 min | 0.2% | 469 |
| SkyWest Airlines | 85% | 10 min | 0.3% | 885 |
| Southwest Airlines | 80% | 10 min | 0.3% | 3,908 |
| American Airlines | 77% | 20 min | 0.6% | 1,090 |
Monthly on-time trend
Best time to fly from PHX to SJC
Aim for departures around 6 a.m. (98% on-time); avoid 10 p.m. departures (40%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 77% | 13 min |
| Tuesdaybest | 86% | 8 min |
| Wednesday | 83% | 10 min |
| Thursday | 81% | 13 min |
| Friday | 79% | 15 min |
| Saturday | 84% | 10 min |
| Sunday | 78% | 13 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft56%
- Airline operations39%
- National airspace system4%
- Weather1%
Frequently asked questions
- How often are flights from PHX to SJC delayed?
- 19% of PHX–SJC flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 12 minutes.
- Which airline is most reliable from PHX to SJC?
- Frontier Airlines has the best on-time record on this route at 87%, based on 188 flights. 5 airlines flew PHX–SJC frequently enough to compare in this period.
- What is the best time of day to fly from PHX to SJC?
- Departures around 6 a.m. have the best record (98% on-time), while departures around 10 p.m. have the worst (40%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from PHX to SJC?
- The scheduled PHX–SJC flight time averages 1h 58m over 621 miles. Actual arrival times vary — flights on this route land 15+ minutes late 19% of the time.
- How often are PHX to SJC flights cancelled?
- 0.4% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from PHX to SJC?
- June 2026 was the roughest month in this dataset, with only 68% of arrivals on time. The best was September 2025 at 90%. If your dates are flexible, that 22-point gap is worth planning around.
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Based on 6,540 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.