Nantucket (ACK) to White Plains (HPN): On-Time Performance
Data through May 2026
Nantucket (ACK) to White Plains (HPN) is a thinner route than most in this dataset — 236 departures over the past year, roughly 5 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 82% arrived on time. Cancellations are the bigger caveat: 3.9% of scheduled flights never departed.
- On-time
- 82%
- arrived <15 min late
- Avg delay
- 19 min
- completed flights
- Cancelled
- 3.9%
- Flights/day
- 0.65
- last 12 months
- Duration
- 1h 4m
- scheduled
- Distance
- 191 mi
Monthly on-time trend
Best time to fly from ACK to HPN
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 77% | 17 min |
| Tuesdaybest | 90% | 22 min |
| Wednesday | 86% | 15 min |
| Thursday | 75% | 28 min |
| Friday | 77% | 22 min |
| Saturday | 88% | 9 min |
| Sunday | 79% | 19 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft64%
- Airline operations16%
- National airspace system19%
Frequently asked questions
- How often are flights from ACK to HPN delayed?
- 18% of ACK–HPN 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 19 minutes.
- How long is the flight from ACK to HPN?
- The scheduled ACK–HPN flight time averages 1h 4m over 191 miles. Actual arrival times vary — flights on this route land 15+ minutes late 18% of the time.
- How often are ACK to HPN flights cancelled?
- 3.9% of scheduled flights on this route were cancelled between 2024-06 and 2026-05 — several times the typical US rate, so consider earlier departures or backup options.
- What day of the week is most reliable for ACK to HPN?
- Tuesday flights have the best record at 90% on-time. Day-of-week differences on this route are meaningful — Thursday trails at 75%.
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Based on 461 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.