American AirlinesAA
Flights AA4599 15:29 daily
live
Direct flights from Nantucket (ACK) to New York (LGA): 21 nonstop departures observed each week across 3 airlines. 89% of the last 9 operated flights arrived within 15 minutes of schedule. The median arrival is 7 minutes early. No cancellations were recorded across the 9 tracked flights. The nonstop covers 324 km, an estimated 55 minutes in the air. Measured by Pro Flight Search from live flight boards at Nantucket and New York. Updated 14 September 2026 at 02:05 UTC.
ACK
Nantucket
tracking
LGA
New York
heavy · +30
324 km · ~0h 55m est.
Runs reliable · 3 airlines · 21x weekly · nonstop
89% on time
of the last 9 operated ACK → LGA flights arrived within 15 minutes
Median arrival delay is −7 min. 0 of 9 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−7 minacross the last 9 operated legs
Flight time~0h 55mestimated from route distance
Weekly departures21x3 direct airlines on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
American AirlinesDelta Air LinesJetBlue Airways
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Who flies it
observed on the boards · 7 daysHistory
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsnext sweep in 120s
How the Nantucket to New York route actually runs
Pro Flight Search records official board updates for nonstop ACK to LGA flights through the day: 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.
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 — Nantucket (ACK) to New York (LGA) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/ACK-LGA
ACK to LGA questions
Is ACK–LGA running on time right now?
Some delays possible. The arrival side at LGA is the weaker end, route health score 60/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from ACK to LGA?
Great-circle distance is 324 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 53–58 min gate-to-gate on this route.
How often does ACK–LGA fly?
3 carriers operate this route, around 28 flights a week between them. Compare carrier days and times in the airline list above.
What does the route health score measure?
A blend of departure-side delay at ACK and arrival-side delay at LGA, 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.
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