Is ATL–ISP running on time right now?
Smooth skies ahead. The departure side at ATL is the weaker end, route health score 84/100. The airports section above carries the live status and delay window at both ends.
live
Direct flights from Atlanta (ATL) to Islip (ISP) run nonstop between the two airports. The nonstop covers 1,279 km, an estimated 2 hours 8 minutes in the air.
ATL
Atlanta
smooth · +11
ISP
Islip
tracking
1,279 km · ~2h 08m est.
Running clean · 0 airlines · nonstop
84 / 100
route health from live ATL and ISP delay boards
Search live fares for this route →Flight time~2h 08mestimated from route distance
Airports right now
live boardsnext sweep in 120s
How the Atlanta to Islip route actually runs
Pro Flight Search tracks every published board update for nonstop ATL to ISP flights: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises. Fares link straight to the operating airline with no markups.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search — Atlanta (ATL) to Islip (ISP) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/ATL-ISP
ATL to ISP questions
How long is the flight from ATL to ISP?
Great-circle distance is 1,279 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 120–140 min gate-to-gate on this route.
What does the route health score measure?
A blend of departure-side delay at ATL and arrival-side delay at ISP, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.
.