Best Time to Fly SJC to PHX: On-Time Stats by Hour & Airline
Norman Y. Mineta San Jose International → Phoenix Sky Harbor International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 81.3% of San Jose (SJC) to Phoenix (PHX) flights arrived on time (3,019 scheduled flights). That is 3.7 points above the national average of 77.6%.
Envoy Air was the most punctual of the 4 airlines on the route at 89.6%, while Southwest Airlines trailed at 78.2%.
January has been the best month (89% on time) and Thursday the weakest day of the week (81%).
0.8% of flights were cancelled, versus 1.8% nationally.
SJC to PHX on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Envoy Air | 89.6% | 52 min | 1.0% | 194 |
| American Airlines | 85.9% | 92 min | 0.9% | 662 |
| SkyWest Airlines | 85.5% | 96 min | 1.0% | 293 |
| Southwest Airlines | 78.2% | 48 min | 0.6% | 1,870 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SJC to PHX
On-time arrival % by scheduled departure hour (local time), 6,299 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 94.1% | 0.4% | 1,203 |
| 7am–8am | 96.0% | 0.7% | 152 |
| 8am–9am | 93.6% | 0.0% | 295 |
| 9am–10am | 92.5% | 0.1% | 750 |
| 10am–11am | 92.2% | 0.0% | 204 |
| 11am–12pm | 80.3% | 0.0% | 214 |
| 12pm–1pm | 84.8% | 0.8% | 748 |
| 1pm–2pm | 72.1% | 1.0% | 192 |
| 2pm–3pm | 77.3% | 1.5% | 206 |
| 3pm–4pm | 75.3% | 0.4% | 276 |
| 4pm–5pm | 73.7% | 0.9% | 443 |
| 5pm–6pm | 78.2% | 0.0% | 238 |
| 6pm–7pm | 71.3% | 0.6% | 179 |
| 7pm–8pm | 80.2% | 0.6% | 808 |
| 8pm–9pm | 75.7% | 0.0% | 178 |
| 9pm–10pm | 65.1% | 0.5% | 190 |
| 10pm–11pm | Limited data | 23 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SJC to PHX
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 88.5% | +3.2 pts | 0.7% | 149 |
| Christmas & New Year (Dec 20 - Jan 3) | 80.4% | -4.9 pts | 0.0% | 286 |
| Summer peak (Jun 15 - Aug 15) | 79.3% | -6.0 pts | 0.6% | 969 |
| All other days | 85.3% | — | 0.5% | 4,895 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).