OnTimeStats

Historical on-time performance

Charlotte to Knoxville

177 miData through Dec 2025Source: US DOT · BTS

Flights on CLT–TYS arrive on time 71% of the time over the last 12 months.

On-time rate71%arrived within 15 min
p90 delay65 min1 in 10 flights is worse (tail risk)
Cancelled1.8%of scheduled flights

based on 1,140 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Envoy Airbest
    On-time94%
    Medianon time
    p9010 min
    Cancel0.0%
    Flights31
  • PSA Airlines
    On-time70%
    Medianon time
    p9065 min
    Cancel2.5%
    Flights812
  • American Airlines
    On-time71%
    Medianon time
    p9070 min
    Cancel0.3%
    Flights297

Why flights run late

Delay causes

  • Airline27%
  • Weather7%
  • Air traffic (NAS)12%
  • Late aircraft54%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly CLT → TYS

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 — 86% on time.

  • Mornings86% on time · p90 15 min · 1,173 flights
  • Middays83% on time · p90 25 min · 1,193 flights
  • Afternoons72% on time · p90 45 min · 1,018 flights
  • Overnights68% on time · p90 65 min · 1,660 flights
  • Evenings67% on time · p90 65 min · 939 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 72% to 80% on time.

  • Tuesdays80% on time · p90 35 min · 785 flights
  • Wednesdays79% on time · p90 40 min · 860 flights
  • Thursdays75% on time · p90 40 min · 889 flights
  • Mondays75% on time · p90 45 min · 891 flights
  • Saturdays73% on time · p90 55 min · 773 flights
  • Sundays72% on time · p90 55 min · 892 flights
  • Fridays72% on time · p90 50 min · 897 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.