OnTimeStats

Historical on-time performance

ACKLGA

Nantucket to New York

202 miData through Dec 2025Source: US DOT · BTS

Flights on ACK–LGA arrive on time 75% of the time over the last 12 months.

On-time rate75%arrived within 15 min
Median delayon timetypical arrival
p90 delay70 min1 in 10 flights is worsetail risk
Cancelled3.6%of scheduled flights

based on 334 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Republic Airways
    On-time74%
    Medianon time
    p9075 min
    Cancel4.0%
    Flights272
  • JetBlue Airwaysbest
    On-time82%
    Medianon time
    p9030 min
    Cancel1.6%
    Flights62

Why flights run late

Delay causes

  • Airline39%
  • Weather2%
  • Air traffic (NAS)29%
  • Late aircraft30%
  • Security0%

Most delay minutes here are attributed to Airline.

Over time

On-time trend

By season

On-time rate by month

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Keep exploring

Related pages

Delay predictorfor this route→ACK airportNantucket→LGA airportNew York→Republic Airways on this routecarrier detail→Republic Airwaysairline profile→

Methodology

A flight is on time when it arrives within 15 minutes of schedule — the US DOT / BTS standard. Median and p90(the “1-in-10 bad day”) are read from the full arrival-delay distribution, never averaged across periods.

Figures cover a carrier’s own BTS-coded flights. Cells below ~200 flights are flagged as limited data. All numbers are pre-computed from public BTS On-Time Performance data.