Best Time to Fly SAN to PHX: On-Time Stats by Hour & Airline
San Diego International → Phoenix Sky Harbor International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 74.5% of San Diego (SAN) to Phoenix (PHX) flights arrived on time (5,976 scheduled flights). That is 3.2 points below the national average of 77.6%.
American Airlines was the most punctual of the 5 airlines on the route at 80.0%, while SkyWest Airlines trailed at 65.8%.
February has been the best month (84% on time) and Friday the weakest day of the week (69%).
1.6% of flights were cancelled, versus 1.8% nationally.
SAN 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 |
|---|---|---|---|---|
| American Airlines | 80.0% | 123 min | 0.8% | 1,667 |
| Alaska Airlines | 77.9% | 46 min | 1.8% | 217 |
| Southwest Airlines | 73.2% | 50 min | 1.4% | 3,197 |
| Frontier Airlines | 70.3% | 78 min | 0.8% | 388 |
| SkyWest Airlines | 65.8% | 53 min | 5.3% | 507 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SAN to PHX
On-time arrival % by scheduled departure hour (local time), 11,538 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 92.6% | 1.5% | 1,217 |
| 7am–8am | 86.8% | 1.5% | 406 |
| 8am–9am | 85.0% | 0.7% | 725 |
| 9am–10am | 83.9% | 0.7% | 885 |
| 10am–11am | 82.5% | 1.6% | 740 |
| 11am–12pm | 78.0% | 1.8% | 439 |
| 12pm–1pm | 73.2% | 0.8% | 876 |
| 1pm–2pm | 72.5% | 1.2% | 806 |
| 2pm–3pm | 72.8% | 1.0% | 512 |
| 3pm–4pm | 73.1% | 1.8% | 546 |
| 4pm–5pm | 72.1% | 0.8% | 1,308 |
| 5pm–6pm | 65.2% | 1.5% | 543 |
| 6pm–7pm | 67.9% | 1.7% | 466 |
| 7pm–8pm | 72.0% | 1.0% | 995 |
| 8pm–9pm | 68.5% | 3.0% | 492 |
| 9pm–10pm | 67.3% | 4.0% | 447 |
| 10pm–11pm | 70.8% | 3.7% | 135 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SAN 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) | 76.6% | -2.3 pts | 0.5% | 202 |
| Christmas & New Year (Dec 20 - Jan 3) | 64.3% | -14.6 pts | 4.8% | 441 |
| Summer peak (Jun 15 - Aug 15) | 69.7% | -9.2 pts | 1.2% | 1,970 |
| All other days | 78.9% | — | 1.3% | 8,925 |
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).