MYR to ISP flight delays
Myrtle Beach, SC (MYR) Islip, NY (ISP) · 586 miles
121 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
74.36%
Arrived on time
Within 15 minutes of schedule
3.31%
Cancelled
Share of scheduled flights
139 min
When late, late by
Average across delayed arrivals
36 min
Delay per flight
Averaged over every flight flown
What the record says about this route
Cancellation, not delay, is the risk worth pricing here: 3.31% of scheduled flights never operated. A late flight still gets you there. A cancelled one leaves you rebooking, and on a route with few daily departures that can mean losing a day.
The two directions do not behave alike. ISP to MYR arrives on time 12.2 points more often than the outbound. Delay accumulates through the flying day, so whichever direction is scheduled later tends to carry the worse record — which is an argument for booking the morning departure if the choice exists.
Only Frontier Airlines flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
Flights from Myrtle Beach to Islip run late more often than the average route, though not severely.
Which airline should you fly on this route?
Over January 2025 – August 2026, Frontier Airlines arrived on time most often on MYR to ISP. Flights ran closest to schedule in May and worst in July.
Every airline on MYR to ISP
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| Frontier Airlines | 121 | 74.36% | 3.31% | 139 min | D |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
ISP to MYR Islip back to Myrtle Beach 86.55% on time BOther routes from Myrtle Beach
Common questions
Are flights from Myrtle Beach to Islip usually delayed?
74.36% of flights on the MYR to ISP route arrived within 15 minutes of schedule, so roughly 3 in every ten arrived late. That is about the same as the average route in this record.
Which airlines fly from Myrtle Beach to Islip?
Only Frontier Airlines appears in the published record on this route, with 121 flights and 74.36% arriving on time.
How often are MYR to ISP flights cancelled?
3.31% of scheduled flights did not operate — about 33 in every thousand. That is high enough that cancellation, not delay, is the risk worth planning around.
When MYR to ISP flights are late, how late are they?
About 139 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on MYR to ISP during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →