Best Time to Fly ATL to ILM: On-Time Stats by Hour & Airline
Hartsfield-Jackson Atlanta International → Wilmington International
Data through July 2026 · Last updated October 18, 2026
1,149 flights were scheduled from Atlanta (ATL) to Wilmington (ILM) in the last 12 months, and 84.3% of those that flew arrived on time, 6.6 points above the US average of 77.6%.
Delta Air Lines was the only reporting airline with regular flights on this route.
Over 24 months, Wednesday was the most reliable day (88% on time) and May the worst month (76%).
The cancellation rate was 1.0% (US average 1.8%).
ATL to ILM 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 | 84.3% | 64 min | 1.0% | 1,149 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly ATL to ILM
On-time arrival % by scheduled departure hour (local time), 2,163 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 8am–9am | 95.2% | 0.7% | 292 |
| 9am–10am | 90.5% | 0.0% | 148 |
| 10am–11am | Limited data | 8 | |
| 11am–12pm | Limited data | 2 | |
| 12pm–1pm | 86.1% | 0.4% | 456 |
| 1pm–2pm | 77.8% | 2.7% | 74 |
| 2pm–3pm | 82.3% | 0.0% | 51 |
| 3pm–4pm | 80.1% | 0.9% | 325 |
| 4pm–5pm | 68.9% | 0.0% | 132 |
| 5pm–6pm | Limited data | 4 | |
| 6pm–7pm | Limited data | 3 | |
| 7pm–8pm | 87.5% | 0.0% | 56 |
| 8pm–9pm | 74.3% | 2.8% | 36 |
| 9pm–10pm | 76.0% | 1.1% | 266 |
| 10pm–11pm | 82.2% | 1.9% | 310 |
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 ILM
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) | 76.5% | -8.7 pts | 0.0% | 51 |
| Christmas & New Year (Dec 20 - Jan 3) | 76.3% | -8.9 pts | 0.0% | 76 |
| Summer peak (Jun 15 - Aug 15) | 79.3% | -5.9 pts | 1.5% | 481 |
| All other days | 85.2% | — | 0.8% | 1,555 |
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).