Best Time to Fly ATL to MEM: On-Time Stats by Hour & Airline
Hartsfield-Jackson Atlanta International → Memphis International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 81.4% of Atlanta (ATL) to Memphis (MEM) flights arrived on time (3,421 scheduled flights). That is 3.8 points above the national average of 77.6%.
Among 2 airlines, Delta Air Lines led with 81.7% on time and Frontier Airlines was last with 62.7%.
Over 24 months, Wednesday was the most reliable day (87% on time) and July the worst month (72%).
The cancellation rate was 1.8% (US average 1.8%).
ATL to MEM 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 |
|---|---|---|---|---|
| Delta Air Lines | 81.7% | 64 min | 1.8% | 3,336 |
| Frontier Airlines | 62.7% | 76 min | 2.9% | 70 |
| SkyWest Airlines | Limited data | 15 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly ATL to MEM
On-time arrival % by scheduled departure hour (local time), 6,731 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | 91.9% | 0.0% | 99 |
| 8am–9am | 92.0% | 1.1% | 621 |
| 9am–10am | 88.9% | 1.9% | 414 |
| 10am–11am | 87.0% | 1.8% | 494 |
| 11am–12pm | 88.3% | 1.0% | 301 |
| 12pm–1pm | 88.8% | 0.8% | 479 |
| 1pm–2pm | 83.3% | 0.7% | 301 |
| 2pm–3pm | 83.9% | 1.9% | 317 |
| 3pm–4pm | 75.3% | 1.3% | 453 |
| 4pm–5pm | 80.7% | 0.7% | 609 |
| 5pm–6pm | 78.4% | 0.0% | 435 |
| 6pm–7pm | 74.9% | 2.3% | 257 |
| 7pm–8pm | 80.7% | 2.5% | 362 |
| 8pm–9pm | 75.8% | 1.3% | 541 |
| 9pm–10pm | 72.7% | 1.7% | 302 |
| 10pm–11pm | 76.0% | 1.7% | 407 |
| 11pm–12am | 74.2% | 3.0% | 339 |
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 MEM
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) | 73.3% | -10.0 pts | 0.0% | 120 |
| Christmas & New Year (Dec 20 - Jan 3) | 82.0% | -1.3 pts | 1.2% | 253 |
| Summer peak (Jun 15 - Aug 15) | 77.0% | -6.4 pts | 1.9% | 1,197 |
| All other days | 83.3% | — | 1.3% | 5,161 |
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).