Islip (ISP) to Myrtle Beach (MYR): On-Time Performance
Data through July 2026
Islip (ISP) to Myrtle Beach (MYR) is a thinner route than most in this dataset — 121 departures over the past year, roughly 2 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 80% arrived on time. Cancellations are the bigger caveat: 4.9% of scheduled flights never departed.
- On-time
- 80%
- arrived <15 min late
- Avg delay
- 18 min
- completed flights
- Cancelled
- 4.9%
- Flights/day
- 0.33
- last 12 months
- Duration
- 1h 55m
- scheduled
- Distance
- 586 mi
Monthly on-time trend
Best time to fly from ISP to MYR
Aim for departures around 11 a.m. (89% on-time); avoid 6 p.m. departures (68%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 82% | 24 min |
| Tuesdaybest | 100% | 1 min |
| Wednesday | 83% | 24 min |
| Thursday | 83% | 12 min |
| Friday | 78% | 22 min |
| Saturday | 72% | 20 min |
| Sunday | 77% | 15 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft46%
- Airline operations32%
- National airspace system16%
- Weather6%
Frequently asked questions
- How often are flights from ISP to MYR delayed?
- 20% of ISP–MYR 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 18 minutes.
- What is the best time of day to fly from ISP to MYR?
- Departures around 11 a.m. have the best record (89% on-time), while departures around 6 p.m. have the worst (68%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from ISP to MYR?
- The scheduled ISP–MYR flight time averages 1h 55m over 586 miles. Actual arrival times vary — flights on this route land 15+ minutes late 20% of the time.
- How often are ISP to MYR flights cancelled?
- 4.9% of scheduled flights on this route were cancelled between 2024-07 and 2026-07 — several times the typical US rate, so consider earlier departures or backup options.
- What day of the week is most reliable for ISP to MYR?
- Thursday flights have the best record at 83% on-time. Day-of-week differences on this route are meaningful — Saturday trails at 72%.
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Based on 284 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.