Boston (BOS) to Wilmington (ILM): On-Time Performance
Data through May 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 77% in June 2024. Across the full period the route averages 87% on-time against a national 78%.
- On-time
- 87%
- arrived <15 min late
- Avg delay
- 8 min
- completed flights
- Cancelled
- 0.5%
- 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 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| JetBlue Airwaysmost reliable | 88% | 9 min | 0.5% | 212 |
| Envoy Air | 87% | 8 min | 0.6% | 361 |
| Republic Airways | 85% | 9 min | 0.6% | 157 |
Monthly on-time trend
Best time to fly from BOS to ILM
Departure time makes little difference on this route — on-time rates stay within a few points across the day.
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 85% | 10 min |
| Tuesdaybest | 93% | 3 min |
| Wednesday | 89% | 8 min |
| Thursday | 85% | 9 min |
| Friday | 83% | 11 min |
| Saturday | 85% | 7 min |
| Sunday | 88% | 9 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft38%
- Airline operations34%
- National airspace system28%
- Weather1%
Frequently asked questions
- How often are flights from BOS to ILM delayed?
- 13% of BOS–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 8 minutes.
- Which airline is most reliable from BOS to ILM?
- JetBlue Airways has the best on-time record on this route at 88%, based on 212 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 (87% on-time), while departures around 11 a.m. have the worst (84%). 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 13% of the time.
- How often are BOS to ILM flights cancelled?
- 0.5% 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 BOS to ILM?
- June 2024 was the roughest month in this dataset, with only 77% of arrivals on time. The best was April 2025 at 94%. If your dates are flexible, that 17-point gap is worth planning around.
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Based on 730 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.