Best Time to Fly ILM to ATL: On-Time Stats by Hour & Airline
Wilmington International → Hartsfield-Jackson Atlanta International
Data through July 2026 · Last updated October 18, 2026
1,149 flights were scheduled from Wilmington (ILM) to Atlanta (ATL) in the last 12 months, and 87.2% of those that flew arrived on time, 9.6 points above the US average of 77.6%.
Delta Air Lines was the only reporting airline with regular flights on this route.
September has been the best month (96% on time) and Sunday the weakest day of the week (80%).
1.0% of flights were cancelled, versus 1.8% nationally.
ILM to ATL 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 | 87.2% | 76 min | 1.0% | 1,149 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly ILM to ATL
On-time arrival % by scheduled departure hour (local time), 2,163 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 97.9% | 2.1% | 48 |
| 6am–7am | 94.5% | 1.6% | 611 |
| 7am–8am | Limited data | 9 | |
| 10am–11am | 93.6% | 0.8% | 252 |
| 11am–12pm | 90.4% | 0.6% | 178 |
| 12pm–1pm | Limited data | 13 | |
| 1pm–2pm | Limited data | 2 | |
| 2pm–3pm | 80.9% | 0.4% | 453 |
| 3pm–4pm | 76.7% | 0.0% | 30 |
| 4pm–5pm | 84.9% | 1.2% | 168 |
| 5pm–6pm | 82.5% | 0.9% | 226 |
| 6pm–7pm | 67.5% | 0.6% | 172 |
| 8pm–9pm | Limited data | 1 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on ILM to ATL
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) | 80.4% | -8.6 pts | 0.0% | 51 |
| Christmas & New Year (Dec 20 - Jan 3) | 78.7% | -10.3 pts | 0.0% | 76 |
| Summer peak (Jun 15 - Aug 15) | 82.0% | -7.0 pts | 1.7% | 481 |
| All other days | 89.0% | — | 0.9% | 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).