Nantucket, MA · Airport profile
ACK
Nantucket Memorial Airport
ACK right now
Current operating conditions, from live sources only.
FlyerIntel does not currently have live operational data for this airport.
FAA operational data is not currently available to FlyerIntel. Why
No current observation is available for this airport.
Security wait data is not currently available for ACK. Why
Parking data is not currently available for ACK. Why
FlyerIntel shows live values only where a permitted source provides them. Sections without data are left empty rather than estimated.
Airport reliability
Best time to fly from ACK
On-time arrival rate by scheduled local departure time.
Flights departing 9 AM–12 PM arrived on time 80.1% of the time, against 68.9% for 3–6 PM departures — a gap of 11.2 percentage points.
By departure window
By departure hour
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – June 2026 · Buckets with fewer than 120 flights are not scored.
Weekly and seasonal patterns
By day of week
Tuesday is historically the most reliable day and Sunday the least, a gap of 12.2 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – June 2026
Airlines at ACK
Departure performance by operating carrier. Regional flights are reported by the carrier that operated them, not by the mainline brand.
| Carrier | Departures | On time | Cancelled | Median delay |
|---|---|---|---|---|
| JetBlue B6 | 2,822 | 75.4% | 4.04% | -8 min |
| Republic Airways YX | 1,889 | 72.8% | 6.83% | -5 min |
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – June 2026 · Carriers with fewer than 500 departures are not listed.
Routes from ACK
Ranked by FlyerIntel Route Reliability Score.
Most reliable
Least reliable
Busiest routes
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – June 2026 · Only routes with at least 750 flights are ranked.
Reliability over time
On-time arrival rate for departures, by month.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – June 2026
Data and sources
Historical statistics
Every historical figure on this page is calculated by FlyerIntel from US DOT Bureau of Transportation Statistics on-time performance records covering July 2023 – June 2026, comprising 4,845 departures from ACK. A flight counts as delayed when it arrives 15 or more minutes after schedule.
Live conditions
Aviation weather comes from the NOAA Aviation Weather Center. Operational events come from the FAA where available. FlyerIntel shows the age of every live value and does not display data it cannot currently retrieve.