Best Time to Fly ATL to DAY: On-Time Stats by Hour & Airline
Hartsfield-Jackson Atlanta International → James M Cox/Dayton International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 85.2% of Atlanta (ATL) to Dayton (DAY) flights arrived on time (1,402 scheduled flights). That is 7.6 points above the national average of 77.6%.
Delta Air Lines was the only reporting airline with regular flights on this route.
November has been the best month (92% on time) and Sunday the weakest day of the week (82%).
1.9% of flights were cancelled, versus 1.8% nationally.
ATL to DAY 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 | 85.2% | 54 min | 1.9% | 1,402 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly ATL to DAY
On-time arrival % by scheduled departure hour (local time), 2,727 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 8am–9am | 87.8% | 0.8% | 371 |
| 9am–10am | 90.1% | 1.9% | 321 |
| 10am–11am | Limited data | 10 | |
| 11am–12pm | 92.6% | 1.0% | 96 |
| 12pm–1pm | 86.2% | 0.5% | 392 |
| 1pm–2pm | 87.3% | 1.7% | 176 |
| 2pm–3pm | 86.3% | 0.0% | 73 |
| 3pm–4pm | Limited data | 15 | |
| 4pm–5pm | 78.9% | 2.2% | 457 |
| 5pm–6pm | 80.8% | 0.0% | 94 |
| 7pm–8pm | 92.7% | 0.0% | 55 |
| 8pm–9pm | Limited data | 23 | |
| 9pm–10pm | 83.0% | 1.4% | 346 |
| 10pm–11pm | 80.2% | 1.7% | 298 |
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 DAY
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) | 74.5% | -12.1 pts | 0.0% | 55 |
| Christmas & New Year (Dec 20 - Jan 3) | 78.8% | -7.9 pts | 1.5% | 67 |
| Summer peak (Jun 15 - Aug 15) | 78.0% | -8.7 pts | 2.1% | 465 |
| All other days | 86.7% | — | 1.2% | 2,140 |
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).