Phoenix (PHX) to San Jose (SJC): On-Time Performance
Data through May 2026
The calendar drives reliability on PHX–SJC. September 2025 flights landed on schedule 90% of the time, but May 2026 dropped to 73% — a gap of 17 points. Across the full period the route averages 82% on-time against a national 78%. Morning departures also hold up better than evening ones (90% vs 72%), which matters most in the rough months.
- On-time
- 82%
- arrived <15 min late
- Avg delay
- 11 min
- completed flights
- Cancelled
- 0.3%
- Flights/day
- 8.3
- last 12 months
- Duration
- 1h 58m
- scheduled
- Distance
- 621 mi
Best airline from PHX to SJC
5 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Frontier Airlinesmost reliable | 87% | 11 min | 0.5% | 188 |
| Envoy Air | 86% | 7 min | 0.2% | 490 |
| SkyWest Airlines | 86% | 10 min | 0.3% | 952 |
| Southwest Airlines | 81% | 10 min | 0.3% | 3,808 |
| American Airlines | 78% | 18 min | 0.5% | 938 |
Monthly on-time trend
Best time to fly from PHX to SJC
Aim for departures around 6 a.m. (98% on-time); avoid 6 p.m. departures (66%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 77% | 13 min |
| Tuesdaybest | 87% | 7 min |
| Wednesday | 84% | 9 min |
| Thursday | 82% | 12 min |
| Friday | 79% | 14 min |
| Saturday | 85% | 8 min |
| Sunday | 79% | 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 aircraft54%
- Airline operations40%
- National airspace system5%
- Weather1%
Frequently asked questions
- How often are flights from PHX to SJC delayed?
- 18% of PHX–SJC 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 11 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 6 p.m. have the worst (66%). 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 18% of the time.
- How often are PHX to SJC flights cancelled?
- 0.3% 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 SJC?
- May 2026 was the roughest month in this dataset, with only 73% of arrivals on time. The best was September 2025 at 90%. If your dates are flexible, that 17-point gap is worth planning around.
Explore related pages
More routes from PHX
Based on 6,376 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.