Route · JFK → ACK · 2020–2025 BTS data
New York to Nantucket
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), JFK to ACK (New York to Nantucket) ranks #3763 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 79.9%
- On-time
- +0.9 pts
- vs US avg
- 85 min
- Delay when late
- 2,109
- Flights
- #3763 of 4927
- Corpus placement
Cancelled
3.4%
Best Month
Jun 2025 91%
Worst Month
Sep 2023 68%
Distance
199 mi
Carriers
4
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Sep 2025 | 39 | 6 | 0 | 0 | YX,B6 |
| Aug 2025 | 85 | 8 | 0 | 0 | YX,B6 |
| Jul 2025 | 93 | 21 | 7 | 0 | B6,YX |
| Jun 2025 | 68 | 6 | 3 | 0 | B6,YX |
| Sep 2024 | 35 | 2 | 0 | 0 | YX,B6 |
| Aug 2024 | 93 | 24 | 6 | 0 | B6,YX |
| Jul 2024 | 93 | 20 | 6 | 0 | B6,YX |
| Jun 2024 | 78 | 18 | 3 | 0 | B6,YX |
| May 2024 | 33 | 8 | 0 | 0 | B6,YX |
| Oct 2023 | 38 | 12 | 1 | 1 | B6 |
| Sep 2023 | 65 | 21 | 8 | 0 | B6,YX |
| Aug 2023 | 97 | 19 | 2 | 0 | B6,YX |
| Jul 2023 | 105 | 26 | 4 | 0 | B6,YX |
| Jun 2023 | 97 | 23 | 3 | 0 | B6,YX |
| May 2023 | 42 | 7 | 0 | 0 | B6,YX |
| Sep 2022 | 60 | 10 | 0 | 1 | 9E,B6 |
| Aug 2022 | 124 | 26 | 1 | 0 | 9E,B6 |
| Jul 2022 | 124 | 24 | 2 | 3 | 9E,B6 |
| Jun 2022 | 112 | 19 | 3 | 0 | 9E,B6 |
| May 2022 | 37 | 10 | 1 | 0 | 9E,B6 |
| Oct 2021 | 30 | 1 | 0 | 1 | B6 |
| Sep 2021 | 67 | 12 | 2 | 0 | 9E,B6 |
| Aug 2021 | 112 | 30 | 4 | 0 | 9E,B6 |
| Jul 2021 | 138 | 40 | 8 | 3 | 9E,B6 |
JFK–ACK seasonal on-time pattern
Best: September (82.7%) · weakest: July (76.7%)
Strongest calendar month
September
82.7% on-time · ~50 flights/mo
Busiest calendar month
July
~97 flights/mo avg
Weakest calendar month
July
76.7% on-time · ~97 flights/mo
Cancellation Rate
3.4%
64 of 1,865 flights
Diversion Rate
0.5%
9 of 1,865 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
JFK - New York
Full on-time, delay-cause, and seasonal performance for New York, NY.
JFK on-time profileACK - Nantucket
Full on-time, delay-cause, and seasonal performance for Nantucket, MA.
ACK on-time profileCompare the two airports
See JFK and ACK side by side on delays, cancellations, and reliability.
Compare JFK vs ACKOrigin-hub reliability standing
Mid-pack among JFK departures
From JFK, this corridor sits with 50 other 75–85% on-time routes out of 66 tracked departures, not the hub's reliability leaders (3 at ≥85%) and not the softest ( 13 below 75%). Destination: Nantucket · fleet on-time rank #3188 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to JFK–ACK.
Routes with a similar on-time rate
What the Data Says About JFK to ACK
2,109 tracked flights put the JFK to ACK pairing (New York to Nantucket) at a 79.9% on-time rate, squarely in line with the wider network. Delays that do occur run 85.2 minutes on average. Across the 199-mile route and its 4 carriers, the trailing 24 months show 3.4% cancelled and 0.5% diverted (1,865 flights sampled).
The monthly split is wide on this route: Jun 2025 posted the strongest performance at 91% on-time, while Sep 2023 came in at just 68% - a 24-point swing worth factoring into travel timing.
On the multi-year calendar, JFK–ACK peaks in September at 82.7% on-time while July carries the heaviest traffic (~97 flights per month) ; the softest month is July at 76.7%, a 6.0-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does JFK to ACK rank among US routes by traffic? ▼
How often are flights delayed from JFK to ACK? ▼
What is the cancellation rate for JFK to ACK? ▼
How far is the flight from JFK to ACK? ▼
When is the best time to fly from JFK to ACK? ▼
Airports on this route
Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Using JFK–ACK data
JFK–ACK is mid-pack at 79.9% on-time; month and carrier mix move more than the corridor headline.
- Compare JFK and ACK airport profiles: delay causes and top routes differ even on the same corridor. JFK airport
- If your dates flex, September (82.7% on-time) beats July (76.7%) on this corridor. Seasonal chart
- 4 other routes post a similar 79.9% on-time rate; compare before you commit to this pairing. Similar routes
On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.