Best Time to Fly ATL to PHX: On-Time Stats by Hour & Airline
Hartsfield-Jackson Atlanta International → Phoenix Sky Harbor International
Data through July 2026 · Last updated October 18, 2026
3,732 flights were scheduled from Atlanta (ATL) to Phoenix (PHX) in the last 12 months, and 75.5% of those that flew arrived on time, 2.1 points below the US average of 77.6%.
American Airlines was the most punctual of the 4 airlines on the route at 78.4%, while Frontier Airlines trailed at 65.5%.
October has been the best month (83% on time) and Sunday the weakest day of the week (71%).
0.7% of flights were cancelled, versus 1.8% nationally.
ATL 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 | 78.4% | 94 min | 0.5% | 614 |
| Delta Air Lines | 76.7% | 59 min | 0.8% | 2,292 |
| Southwest Airlines | 72.0% | 54 min | 0.3% | 602 |
| Frontier Airlines | 65.5% | 65 min | 1.3% | 224 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly ATL to PHX
On-time arrival % by scheduled departure hour (local time), 7,447 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 84.6% | 2.8% | 108 |
| 6am–7am | 88.7% | 0.0% | 186 |
| 7am–8am | 87.3% | 0.0% | 426 |
| 8am–9am | 81.0% | 0.6% | 1,220 |
| 9am–10am | 81.2% | 0.0% | 224 |
| 10am–11am | 70.5% | 1.1% | 262 |
| 11am–12pm | 83.9% | 0.5% | 671 |
| 12pm–1pm | 83.3% | 1.6% | 366 |
| 1pm–2pm | 79.0% | 0.0% | 477 |
| 2pm–3pm | 72.0% | 2.1% | 95 |
| 3pm–4pm | 67.9% | 2.4% | 84 |
| 4pm–5pm | 73.8% | 0.4% | 488 |
| 5pm–6pm | 68.9% | 0.5% | 579 |
| 6pm–7pm | 69.9% | 0.5% | 624 |
| 7pm–8pm | 64.9% | 0.7% | 564 |
| 8pm–9pm | 67.0% | 1.1% | 352 |
| 9pm–10pm | 70.0% | 1.2% | 648 |
| 10pm–11pm | 65.8% | 0.0% | 73 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on ATL 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) | 70.2% | -7.1 pts | 0.0% | 151 |
| Christmas & New Year (Dec 20 - Jan 3) | 75.0% | -2.3 pts | 0.3% | 326 |
| Summer peak (Jun 15 - Aug 15) | 70.2% | -7.1 pts | 0.6% | 1,212 |
| All other days | 77.3% | — | 0.7% | 5,758 |
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).