OnTimeStats

Historical on-time performance

Charlotte to Louisville

336 miData through May 2026Source: US DOT · BTS

Flights on CLT–SDF arrive on time 73% of the time over the last 12 months.

On-time rate73%arrived within 15 min
p90 delay55 min1 in 10 flights is worse (tail risk)
Cancelled2.2%of scheduled flights

based on 1,654 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Too close to call — no single carrier is clearly more on-time here.

  • PSA Airlines
    On-time76%
    Medianon time
    p9045 min
    Cancel0.8%
    Flights665
  • American Airlines
    On-time71%
    Medianon time
    p9060 min
    Cancel3.1%
    Flights989

Why flights run late

Delay causes

  • Airline34%
  • Weather10%
  • Air traffic (NAS)8%
  • Late aircraft48%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline17%
  • Weather83%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 36 cancellations with a reported cause (BTS reports causes from June 2003).

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly CLT → SDF

All airlines · rolling 36 months (2023-06 .. 2026-05).

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 65% to 80% on time.

  • Middays80% on time · p90 40 min · 1,208 flights
  • Mornings80% on time · p90 25 min · 771 flights
  • Afternoons72% on time · p90 55 min · 919 flights
  • Evenings66% on time · p90 80 min · 856 flights
  • Overnights65% on time · p90 85 min · 1,849 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 66% to 78% on time.

  • Wednesdays78% on time · p90 50 min · 791 flights
  • Tuesdays76% on time · p90 50 min · 769 flights
  • Fridays71% on time · p90 70 min · 822 flights
  • Mondays71% on time · p90 65 min · 820 flights
  • Thursdays71% on time · p90 65 min · 821 flights
  • Saturdays69% on time · p90 55 min · 743 flights
  • Sundays66% on time · p90 75 min · 839 flights

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.