Atlanta (ATL) to Phoenix (PHX): On-Time Performance
Data through July 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 75% on-time against a national 78%. Morning departures also hold up better than evening ones (82% vs 67%), which matters most in the rough months.
- On-time
- 75%
- arrived <15 min late
- Avg delay
- 18 min
- completed flights
- Cancelled
- 0.8%
- 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 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| American Airlinesmost reliable | 78% | 25 min | 0.6% | 1,365 |
| Delta Air Lines | 75% | 15 min | 1.0% | 4,717 |
| Southwest Airlines | 75% | 15 min | 0.3% | 1,291 |
| Frontier Airlines | 66% | 30 min | 1.3% | 384 |
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 (54%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 75% | 17 min |
| Tuesday | 77% | 17 min |
| Wednesday | 78% | 16 min |
| Thursday | 74% | 15 min |
| Friday | 73% | 21 min |
| Saturdaybest | 79% | 15 min |
| Sunday | 70% | 23 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft35%
- Airline operations44%
- National airspace system16%
- Weather5%
Frequently asked questions
- How often are flights from ATL to PHX delayed?
- 25% of ATL–PHX flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. 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 78%, based on 1,365 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 (54%). 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 25% of the time.
- How often are ATL to PHX flights cancelled?
- 0.8% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, 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 7,757 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.