Atlanta (ATL) to Phoenix (PHX): On-Time Performance
Data through May 2026
When you fly ATL to PHX matters as much as anything else about the booking: the route swung from 88% on-time in October 2024 to just 61% in July 2024. Across the full period the route averages 76% on-time against a national 78%. Morning departures also hold up better than evening ones (82% vs 68%), which matters most in the rough months.
- On-time
- 76%
- arrived <15 min late
- Avg delay
- 18 min
- completed flights
- Cancelled
- 0.9%
- Flights/day
- 10
- last 12 months
- Duration
- 4h 8m
- scheduled
- Distance
- 1,587 mi
Best airline from ATL to PHX
4 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| American Airlinesmost reliable | 79% | 26 min | 0.7% | 1,300 |
| Delta Air Lines | 75% | 15 min | 1.0% | 4,551 |
| Southwest Airlines | 75% | 14 min | 0.3% | 1,283 |
| Frontier Airlines | 66% | 34 min | 1.1% | 358 |
Monthly on-time trend
Best time to fly from ATL to PHX
Aim for departures around 6 a.m. (89% on-time); avoid 10 p.m. departures (56%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 76% | 17 min |
| Tuesday | 77% | 17 min |
| Wednesday | 78% | 18 min |
| Thursday | 74% | 14 min |
| Friday | 74% | 20 min |
| Saturdaybest | 80% | 16 min |
| Sunday | 71% | 22 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft33%
- Airline operations46%
- National airspace system16%
- Weather5%
Frequently asked questions
- How often are flights from ATL to PHX delayed?
- 24% of ATL–PHX 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 18 minutes.
- Which airline is most reliable from ATL to PHX?
- American Airlines has the best on-time record on this route at 79%, based on 1,300 flights. 4 airlines flew ATL–PHX frequently enough to compare in this period.
- What is the best time of day to fly from ATL to PHX?
- Departures around 6 a.m. have the best record (89% on-time), while departures around 10 p.m. have the worst (56%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from ATL to PHX?
- The scheduled ATL–PHX flight time averages 4h 8m over 1,587 miles. Actual arrival times vary — flights on this route land 15+ minutes late 24% of the time.
- How often are ATL to PHX flights cancelled?
- 0.9% 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 ATL to PHX?
- July 2024 was the roughest month in this dataset, with only 61% of arrivals on time. The best was October 2024 at 88%. If your dates are flexible, that 27-point gap is worth planning around.
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Based on 7,492 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.