Boston (BOS) to Wilmington (ILM): On-Time Performance
Data through July 2026
When you fly BOS to ILM matters as much as anything else about the booking: the route swung from 94% on-time in April 2025 to just 68% in July 2026. Across the full period the route averages 85% on-time against a national 78%.
- On-time
- 85%
- arrived <15 min late
- Avg delay
- 9 min
- completed flights
- Cancelled
- 0.6%
- Flights/day
- 1.2
- last 12 months
- Duration
- 2h 11m
- scheduled
- Distance
- 672 mi
Best airline from BOS to ILM
3 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Envoy Airmost reliable | 87% | 7 min | 0.3% | 339 |
| Republic Airways | 85% | 8 min | 1.4% | 213 |
| JetBlue Airways | 82% | 14 min | 0.4% | 273 |
Monthly on-time trend
Best time to fly from BOS to ILM
Aim for departures around 8 a.m. (89% on-time); avoid 1 p.m. departures (54%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 84% | 11 min |
| Tuesdaybest | 91% | 7 min |
| Wednesday | 89% | 7 min |
| Thursday | 85% | 8 min |
| Friday | 80% | 15 min |
| Saturday | 82% | 10 min |
| Sunday | 85% | 8 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft37%
- Airline operations36%
- National airspace system26%
- Weather1%
Frequently asked questions
- How often are flights from BOS to ILM delayed?
- 15% of BOS–ILM flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 9 minutes.
- Which airline is most reliable from BOS to ILM?
- Envoy Air has the best on-time record on this route at 87%, based on 339 flights. 3 airlines flew BOS–ILM frequently enough to compare in this period.
- What is the best time of day to fly from BOS to ILM?
- Departures around 8 a.m. have the best record (89% on-time), while departures around 1 p.m. have the worst (54%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from BOS to ILM?
- The scheduled BOS–ILM flight time averages 2h 11m over 672 miles. Actual arrival times vary — flights on this route land 15+ minutes late 15% of the time.
- How often are BOS to ILM flights cancelled?
- 0.6% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from BOS to ILM?
- July 2026 was the roughest month in this dataset, with only 68% of arrivals on time. The best was April 2025 at 94%. If your dates are flexible, that 26-point gap is worth planning around.
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Based on 825 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.