Wilmington International (ILM) Delays and On-Time Departures
Wilmington, NC · ranked 167th of 333 airports for on-time departures
Data through July 2026 · Last updated October 18, 2026
80.8% of the 7,522 flights scheduled to depart Wilmington (ILM) in the last 12 months left on time, 3.4 points above the US average of 77.4%.
That ranks 167th of 333 US airports tracked on this site, with 3.2% of departures cancelled.
Among airlines at Wilmington (ILM), Envoy Air left on time most often (83.7%).
Over 24 months, Tuesday was the most reliable day (85% on time) and July the worst month (73%).
Best time of day to fly out of Wilmington (ILM)
On-time departure % by scheduled departure hour (local time), last 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 94.0% | 1.2% | 759 |
| 6am–7am | 92.6% | 2.3% | 2,784 |
| 7am–8am | 92.8% | 3.0% | 981 |
| 8am–9am | 89.1% | 2.6% | 189 |
| 9am–10am | 86.2% | 1.1% | 460 |
| 10am–11am | 85.0% | 3.2% | 1,134 |
| 11am–12pm | 85.5% | 1.2% | 1,131 |
| 12pm–1pm | 77.3% | 2.0% | 962 |
| 1pm–2pm | 77.5% | 1.5% | 614 |
| 2pm–3pm | 77.7% | 1.7% | 1,084 |
| 3pm–4pm | 72.2% | 3.8% | 604 |
| 4pm–5pm | 69.4% | 3.4% | 1,097 |
| 5pm–6pm | 75.0% | 4.0% | 1,426 |
| 6pm–7pm | 71.5% | 6.5% | 944 |
| 7pm–8pm | 66.1% | 7.8% | 790 |
| 8pm–9pm | 67.0% | 3.0% | 469 |
Airlines at ILM ranked by on-time departures
Last 12 months. Airlines with fewer than 30 departures are marked “limited data”.
| Airline | On-time departures | On-time arrivals | Cancelled | Departures |
|---|---|---|---|---|
| Envoy Air | 83.7% | 81.2% | 1.1% | 800 |
| Delta Air Lines | 83.3% | 86.6% | 1.0% | 1,176 |
| American Airlines | 83.1% | 85.6% | 2.7% | 2,334 |
| Republic Airways | 81.4% | 79.0% | 5.3% | 1,742 |
| SkyWest Airlines | 78.6% | 77.7% | 4.3% | 117 |
| PSA Airlines | 74.3% | 73.2% | 5.1% | 1,173 |
| JetBlue | 58.7% | 59.0% | 0.6% | 180 |
80%+ good 70–79.9% fair <70% poor
Best day to fly out of ILM
On-time departures by day, 24 months.
Best month to fly out of ILM
On-time departures by month, 24 months.
Holiday travel at Wilmington (ILM)
On-time departures during holiday periods compared with all other days, last 24 months.
| Period | On-time departures | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 81.8% | -1.5 pts | 0.0% | 275 |
| Christmas & New Year (Dec 20 - Jan 3) | 78.5% | -4.9 pts | 0.9% | 530 |
| Summer peak (Jun 15 - Aug 15) | 74.4% | -9.0 pts | 4.6% | 3,119 |
| All other days | 83.3% | — | 2.7% | 11,504 |
Monthly on-time departure trend at ILM
On-time departure % each month, with the 12-month US average for reference.
Routes from Wilmington (ILM)
Every route from ILM with its own page, by number of flights (last 12 months, on-time arrivals).
| To | On time | Cancelled | Flights |
|---|---|---|---|
| ILM → Charlotte (CLT) | 88.2% | 2.1% | 1,820 |
| ILM → Atlanta (ATL) | 87.2% | 1.0% | 1,149 |
| ILM → New York (LGA) | 77.3% | 6.4% | 1,027 |
| ILM → Washington (DCA) | 68.1% | 6.6% | 880 |
| ILM → Dallas/Fort Worth (DFW) | 80.0% | 3.2% | 708 |
| ILM → Chicago (ORD) | 79.5% | 2.2% | 542 |
| ILM → Miami (MIA) | 86.7% | 1.8% | 456 |
| ILM → Boston (BOS) | 62.6% | 1.6% | 433 |
| ILM → Newark (EWR) | 86.0% | 3.4% | 386 |