OnTimeStats

Historical on-time performance

Louisville to New York

659 miData through Dec 2025Source: US DOT · BTS

Flights on SDF–LGA arrive on time 82% of the time over the last 12 months.

On-time rate82%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled1.6%of scheduled flights

based on 1,281 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Republic Airways
    On-time82%
    Medianon time
    p9035 min
    Cancel1.6%
    Flights1,281

Why flights run late

Delay causes

  • Airline30%
  • Weather3%
  • Air traffic (NAS)44%
  • Late aircraft23%
  • Security0%

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

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly SDF → LGA

All airlines · rolling 36 months (2023-01 .. 2025-12).

Best time of day

Mornings are the most reliable time of day to fly this route — 88% on time.

  • Mornings88% on time · p90 15 min · 1,758 flights
  • Middays84% on time · p90 25 min · 1,644 flights
  • Evenings79% on time · p90 50 min · 426 flights
  • Afternoons77% on time · p90 65 min · 650 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 81% to 90% on time.

  • Saturdays90% on time · p90 10 min · 311 flights
  • Wednesdays88% on time · p90 20 min · 725 flights
  • Mondays85% on time · p90 25 min · 727 flights
  • Tuesdays84% on time · p90 20 min · 727 flights
  • Thursdays84% on time · p90 25 min · 722 flights
  • Sundays82% on time · p90 30 min · 551 flights
  • Fridays81% on time · p90 45 min · 715 flights
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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.