Atlanta (ATL) to Memphis (MEM): On-Time Performance
Data through July 2026
When you fly ATL to MEM matters as much as anything else about the booking: the route swung from 93% on-time in October 2024 to just 59% in July 2024. Across the full period the route averages 81% on-time against a national 78%. Morning departures also hold up better than evening ones (89% vs 75%), which matters most in the rough months.
- On-time
- 81%
- arrived <15 min late
- Avg delay
- 13 min
- completed flights
- Cancelled
- 1.7%
- Flights/day
- 9.4
- last 12 months
- Duration
- 1h 21m
- scheduled
- Distance
- 332 mi
Best airline from ATL to MEM
3 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Southwest Airlinesmost reliable | 82% | 14 min | 1.5% | 271 |
| Delta Air Lines | 81% | 13 min | 1.7% | 6,651 |
| Frontier Airlines | 62% | 29 min | 2.9% | 70 |
Monthly on-time trend
Best time to fly from ATL to MEM
Aim for departures around 7 a.m. (92% on-time); avoid 9 p.m. departures (71%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 78% | 14 min |
| Tuesday | 84% | 12 min |
| Wednesdaybest | 86% | 8 min |
| Thursday | 83% | 10 min |
| Friday | 82% | 14 min |
| Saturday | 80% | 15 min |
| Sunday | 76% | 19 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft31%
- Airline operations48%
- National airspace system16%
- Weather6%
Frequently asked questions
- How often are flights from ATL to MEM delayed?
- 19% of ATL–MEM 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 13 minutes.
- Which airline is most reliable from ATL to MEM?
- Southwest Airlines has the best on-time record on this route at 82%, based on 271 flights. 3 airlines flew ATL–MEM frequently enough to compare in this period.
- What is the best time of day to fly from ATL to MEM?
- Departures around 7 a.m. have the best record (92% on-time), while departures around 9 p.m. have the worst (71%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from ATL to MEM?
- The scheduled ATL–MEM flight time averages 1h 21m over 332 miles. Actual arrival times vary — flights on this route land 15+ minutes late 19% of the time.
- How often are ATL to MEM flights cancelled?
- 1.7% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What is the worst month to fly from ATL to MEM?
- July 2024 was the roughest month in this dataset, with only 59% of arrivals on time. The best was October 2024 at 93%. If your dates are flexible, that 34-point gap is worth planning around.
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Based on 7,015 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.