Atlanta (ATL) to Wilmington (ILM): On-Time Performance
Data through May 2026
The calendar drives reliability on ATL–ILM. October 2024 flights landed on schedule 95% of the time, but May 2025 dropped to 64% — a gap of 31 points. Across the full period the route averages 83% on-time against a national 78%. Morning departures also hold up better than evening ones (91% vs 81%), which matters most in the rough months.
- On-time
- 83%
- arrived <15 min late
- Avg delay
- 12 min
- completed flights
- Cancelled
- 1.2%
- Flights/day
- 3.1
- last 12 months
- Duration
- 1h 22m
- scheduled
- Distance
- 377 mi
Best airline from ATL to ILM
2 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Linesmost reliable | 83% | 12 min | 1.2% | 1,790 |
| Endeavor Air | 80% | 11 min | 0.9% | 348 |
Monthly on-time trend
Best time to fly from ATL to ILM
Aim for departures around 8 a.m. (94% on-time); avoid 4 p.m. departures (67%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 84% | 8 min |
| Tuesday | 85% | 9 min |
| Wednesdaybest | 86% | 10 min |
| Thursday | 83% | 9 min |
| Friday | 83% | 13 min |
| Saturday | 82% | 16 min |
| Sunday | 76% | 17 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft28%
- Airline operations52%
- National airspace system14%
- Weather6%
Frequently asked questions
- How often are flights from ATL to ILM delayed?
- 17% of ATL–ILM flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 12 minutes.
- Which airline is most reliable from ATL to ILM?
- Delta Air Lines has the best on-time record on this route at 83%, based on 1,790 flights. 2 airlines flew ATL–ILM frequently enough to compare in this period.
- What is the best time of day to fly from ATL to ILM?
- Departures around 8 a.m. have the best record (94% on-time), while departures around 4 p.m. have the worst (67%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from ATL to ILM?
- The scheduled ATL–ILM flight time averages 1h 22m over 377 miles. Actual arrival times vary — flights on this route land 15+ minutes late 17% of the time.
- How often are ATL to ILM flights cancelled?
- 1.2% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from ATL to ILM?
- May 2025 was the roughest month in this dataset, with only 64% of arrivals on time. The best was October 2024 at 95%. If your dates are flexible, that 31-point gap is worth planning around.
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Based on 2,166 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.