OnTimeStats

Historical on-time performance

LGAMIA

New York to Miami

1,097 miData through Dec 2025Source: US DOT · BTS

Flights on LGA–MIA arrive on time 69% of the time over the last 12 months.

On-time rate69%arrived within 15 min
Median delayon timetypical arrival
p90 delay70 min1 in 10 flights is worsetail risk
Cancelled2.2%of scheduled flights

based on 5,891 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-time68%
    Medianon time
    p9075 min
    Cancel1.9%
    Flights1,907
  • Spirit Airlinesbest
    On-time79%
    Medianon time
    p9040 min
    Cancel1.7%
    Flights417
  • American Airlines
    On-time69%
    Medianon time
    p9070 min
    Cancel2.5%
    Flights3,505
  • Frontier Airlines
    On-time68%
    Medianon time
    p9070 min
    Cancel0.0%
    Flights62

Why flights run late

Delay causes

  • Airline25%
  • Weather4%
  • Air traffic (NAS)30%
  • Late aircraft41%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

Over time

On-time trend

By season

On-time rate by month

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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.