OnTimeStats

Historical on-time performance

LGABOS

New York to Boston

185 miData through Dec 2025Source: US DOT · BTS

Flights on LGA–BOS arrive on time 72% of the time over the last 12 months.

On-time rate72%arrived within 15 min
Median delayon timetypical arrival
p90 delay65 min1 in 10 flights is worsetail risk
Cancelled3.6%of scheduled flights

based on 6,981 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Delta Air Lines
    On-time75%
    Medianon time
    p9080 min
    Cancel3.1%
    Flights514
  • Republic Airways
    On-time71%
    Medianon time
    p9065 min
    Cancel3.7%
    Flights5,850
  • JetBlue Airwaysbest
    On-time82%
    Medianon time
    p9035 min
    Cancel2.6%
    Flights617

Why flights run late

Delay causes

  • Airline25%
  • Weather2%
  • Air traffic (NAS)40%
  • Late aircraft33%
  • Security0%

Most delay minutes here are attributed to Air traffic (NAS).

Over time

On-time trend

By season

On-time rate by month

Advertisement

Keep exploring

Related pages

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.