Wilmington (ILM) to Boston (BOS): On-Time Performance
Data through July 2026
Wilmington (ILM) to Boston (BOS) effectively runs on two schedules. In April 2025, 91% of arrivals were on time; in July 2026 that fell to 40% — a 50-point seasonal swing. Across the full period the route averages 67% on-time against a national 78%.
- On-time
- 67%
- arrived <15 min late
- Avg delay
- 27 min
- completed flights
- Cancelled
- 1.7%
- Flights/day
- 1.2
- last 12 months
- Duration
- 2h 6m
- scheduled
- Distance
- 672 mi
Best airline from ILM to BOS
3 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Republic Airwaysmost reliable | 71% | 20 min | 2.8% | 213 |
| Envoy Air | 67% | 25 min | 1.5% | 339 |
| JetBlue Airways | 64% | 34 min | 1.1% | 273 |
Monthly on-time trend
Best time to fly from ILM to BOS
Aim for departures around 10 a.m. (92% on-time); avoid 4 p.m. departures (31%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 61% | 28 min |
| Tuesday | 71% | 24 min |
| Wednesday | 69% | 25 min |
| Thursday | 64% | 24 min |
| Friday | 59% | 32 min |
| Saturdaybest | 77% | 27 min |
| Sunday | 67% | 27 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft27%
- Airline operations22%
- National airspace system40%
- Weather12%
Frequently asked questions
- How often are flights from ILM to BOS delayed?
- 33% of ILM–BOS 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 27 minutes.
- Which airline is most reliable from ILM to BOS?
- Republic Airways has the best on-time record on this route at 71%, based on 213 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 (92% on-time), while departures around 4 p.m. have the worst (31%). 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 6m over 672 miles. Actual arrival times vary — flights on this route land 15+ minutes late 33% of the time.
- How often are ILM to BOS flights cancelled?
- 1.7% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What is the worst month to fly from ILM to BOS?
- July 2026 was the roughest month in this dataset, with only 40% of arrivals on time. The best was April 2025 at 91%. If your dates are flexible, that 50-point gap is worth planning around.
Explore related pages
More routes from ILM
Other ways to fly to Boston (BOS)
Related guides
Based on 825 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.