Wilmington (ILM) to Boston (BOS): On-Time Performance
Data through May 2026
Wilmington (ILM) to Boston (BOS) effectively runs on two schedules. In April 2025, 91% of arrivals were on time; in October 2025 that fell to 44% — a 46-point seasonal swing. Across the full period the route averages 70% on-time against a national 78%.
- On-time
- 70%
- arrived <15 min late
- Avg delay
- 22 min
- completed flights
- Cancelled
- 1.4%
- Flights/day
- 1.2
- last 12 months
- Duration
- 2h 5m
- scheduled
- Distance
- 672 mi
Best airline from ILM to BOS
3 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Republic Airwaysmost reliable | 74% | 18 min | 0.6% | 157 |
| JetBlue Airways | 71% | 21 min | 1.4% | 212 |
| Envoy Air | 67% | 25 min | 1.7% | 361 |
Monthly on-time trend
Best time to fly from ILM to BOS
Aim for departures around 10 a.m. (89% on-time); avoid 2 p.m. departures (63%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 62% | 24 min |
| Tuesday | 74% | 19 min |
| Wednesday | 70% | 20 min |
| Thursday | 68% | 19 min |
| Friday | 61% | 29 min |
| Saturdaybest | 80% | 16 min |
| Sunday | 68% | 29 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 operations15%
- National airspace system45%
- Weather12%
Frequently asked questions
- How often are flights from ILM to BOS delayed?
- 30% of ILM–BOS 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 22 minutes.
- Which airline is most reliable from ILM to BOS?
- Republic Airways has the best on-time record on this route at 74%, based on 157 flights. 3 airlines flew ILM–BOS frequently enough to compare in this period.
- What is the best time of day to fly from ILM to BOS?
- Departures around 10 a.m. have the best record (89% on-time), while departures around 2 p.m. have the worst (63%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from ILM to BOS?
- The scheduled ILM–BOS flight time averages 2h 5m over 672 miles. Actual arrival times vary — flights on this route land 15+ minutes late 30% of the time.
- How often are ILM to BOS flights cancelled?
- 1.4% 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 ILM to BOS?
- October 2025 was the roughest month in this dataset, with only 44% of arrivals on time. The best was April 2025 at 91%. If your dates are flexible, that 46-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.