OnTimeStats

Historical on-time performance

JFKMIA

New York to Miami

1,090 miData through Dec 2025Source: US DOT · BTS

Flights on JFK–MIA 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
Cancelled2.0%of scheduled flights

based on 4,875 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-time72%
    Medianon time
    p9065 min
    Cancel1.9%
    Flights1,580
  • American Airlinesbest
    On-time73%
    Medianon time
    p9060 min
    Cancel2.1%
    Flights2,653
  • Frontier Airlines
    On-time66%
    Medianon time
    p9095 min
    Cancel4.1%
    Flights123
  • JetBlue Airways
    On-time63%
    Medianon time
    p9070 min
    Cancel1.3%
    Flights519

Why flights run late

Delay causes

  • Airline34%
  • Weather5%
  • Air traffic (NAS)28%
  • Late aircraft34%
  • Security0%

Most delay minutes here are attributed to Airline.

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.