Airport reliability
Wilmington (ILM) on-time performance
How reliably flights leave Wilmington, NC (ILM) and reach their destinations, by airline, departure hour and month, September 2025 to August 2026.
Wilmington, NC7,560 departures in 12 months
- Departures on time
- 77.1% U.S. average 75.6%
- Cancelled
- 3.5% U.S. average 1.9%
- 60+ minutes late
- 8.4% U.S. average 8.1%
- Scheduled departures
- 7,560 12 months
What this means
ILM departures beat the U.S. average.
- 77.1% of the 7,560 scheduled departures from Wilmington (ILM) arrived at their destination on time, 1.5 points higher than the U.S. average of 75.6%.
- 3.5% of departures were cancelled (U.S. average 1.9%), and 8.4% arrived an hour or more late.
- Flights arriving at ILM were on time 73.5% of the time.
- Among airlines with at least 300 departures, Delta Air Lines was the most punctual from ILM (85.6%) and PSA Airlines the least (66.9%).
- Over the last 3 years, October was the most reliable month for departures from ILM (86.1% on time) and July the least reliable (68.1%).
- Cancellations peaked in January, when 7.2% of flights were cancelled.
- Flights scheduled to depart before 6 am were the most punctual (92.9% on time); flights scheduled to depart 7 pm to 8 pm were the least (57.5%).
Airlines at ILM
Ranked by on-time arrival
| Airline | On time | Cancelled | 60+ min late | Avg delay when late | Departures |
|---|---|---|---|---|---|
| Delta Air Lines | 85.6% | 1.1% | 5.3% | 74 min | 1,177 |
| American Airlines | 82.4% | 2.5% | 6.5% | 100 min | 2,368 |
| Envoy AirSold as American Eagle | 79.6% | 1.0% | 7.1% | 80 min | 706 |
| Republic AirwaysSold as American Eagle, Delta Connection, United Express | 73.4% | 5.5% | 9.3% | 73 min | 1,830 |
| SkyWest AirlinesSold as United Express, Delta Connection, American Eagle, Alaska | 73.0% | 2.5% | 13.8% | 118 min | 159 |
| PSA AirlinesSold as American Eagle | 66.9% | 6.8% | 11.5% | 92 min | 1,140 |
| JetBlue Airways | 47.2% | 1.1% | 23.9% | 103 min | 180 |
Tap a heading to sort.
On-time rate by departure hour
Share of scheduled flights on time ILM average 77.1%
Show as table
| Period | On time | Flights |
|---|---|---|
| Departing before 6 am | 92.9% | 308 |
| Departing 6 am to 7 am | 90.1% | 1,424 |
| Departing 7 am to 8 am | 88.2% | 568 |
| Departing 8 am to 9 am | 82.3% | 141 |
| Departing 9 am to 10 am | 84.0% | 187 |
| Departing 10 am to 11 am | 87.5% | 550 |
| Departing 11 am to noon | 83.5% | 376 |
| Departing noon to 1 pm | 69.6% | 434 |
| Departing 1 pm to 2 pm | 73.4% | 365 |
| Departing 2 pm to 3 pm | 74.0% | 566 |
| Departing 3 pm to 4 pm | 64.7% | 507 |
| Departing 4 pm to 5 pm | 59.2% | 395 |
| Departing 5 pm to 6 pm | 70.1% | 618 |
| Departing 6 pm to 7 pm | 66.0% | 409 |
| Departing 7 pm to 8 pm | 57.5% | 515 |
| Departing 8 pm to 9 pm | 71.6% | 197 |
Best and worst months at ILM
Share of scheduled flights on time 12-month average 77.1%
Show as table
| Period | On time | Flights |
|---|---|---|
| January | 77.1% | 1,452 |
| February | 79.5% | 1,342 |
| March | 82.1% | 1,511 |
| April | 81.9% | 1,780 |
| May | 78.4% | 2,078 |
| June | 74.4% | 2,259 |
| July | 68.1% | 2,378 |
| August | 73.4% | 2,339 |
| September | 85.0% | 2,079 |
| October | 86.1% | 2,158 |
| November | 86.1% | 1,773 |
| December | 80.9% | 1,789 |
Month by month, last 12 months
Share of scheduled flights on time U.S. average 75.6%
Show as table
| Period | On time | Flights |
|---|---|---|
| Sep 2025 | 86.1% | 698 |
| Oct 2025 | 79.3% | 723 |
| Nov 2025 | 79.2% | 558 |
| Dec 2025 | 75.2% | 544 |
| Jan 2026 | 73.9% | 499 |
| Feb 2026 | 75.1% | 450 |
| Mar 2026 | 73.6% | 497 |
| Apr 2026 | 84.5% | 587 |
| May 2026 | 82.1% | 738 |
| Jun 2026 | 77.4% | 762 |
| Jul 2026 | 68.8% | 750 |
| Aug 2026 | 69.4% | 754 |
Busiest routes from ILM
| To | On time | Cancelled | Airlines | Flights |
|---|---|---|---|---|
| Charlotte (CLT) | 85.3% | 2.2% | 3 | 1,826 |
| Atlanta (ATL) | 86.2% | 1.1% | 1 | 1,149 |
| New York (LGA) | 70.8% | 6.7% | 1 | 1,024 |
| Washington (DCA) | 60.8% | 8.4% | 3 | 879 |
| Dallas/Fort Worth (DFW) | 76.2% | 3.1% | 2 | 707 |
| Chicago (ORD) | 78.1% | 1.7% | 3 | 590 |
| Miami (MIA) | 85.0% | 1.5% | 3 | 460 |
| Boston (BOS) | 54.1% | 2.3% | 3 | 429 |
| Newark (EWR) | 82.3% | 3.4% | 1 | 406 |
Sources & data dates
- Source
- U.S. DOT Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987-present)
- Period
- September 2025 to August 2026 (12 months); month-of-year patterns September 2023 to August 2026
- Data through
- August 2026
- Processed
- 2026-11-03
- Scope
- Scheduled nonstop domestic departures from Wilmington, NC (ILM) by airlines that report to the DOT.
- Method
- Rates use all scheduled flights as the denominator; cancelled and diverted flights count as not on time. Figures based on fewer than 50 scheduled flights are suppressed. Full methodology.