OnTimeStats

Historical on-time performance

Charlotte to Washington

321 miData through Dec 2025Source: US DOT · BTS

Flights on CLT–IAD arrive on time 76% of the time over the last 12 months.

On-time rate76%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled2.4%of scheduled flights

based on 1,826 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.

  • Republic Airways
    On-time85%
    Medianon time
    p9025 min
    Cancel1.6%
    Flights251
  • United Airlines
    On-time89%
    Medianon time
    p9025 min
    Cancel0.0%
    Flights62
  • PSA Airlines
    On-time74%
    Medianon time
    p9055 min
    Cancel2.8%
    Flights1,354
  • American Airlines
    On-time74%
    Medianon time
    p9050 min
    Cancel0.6%
    Flights159

Why flights run late

Delay causes

  • Airline31%
  • Weather9%
  • Air traffic (NAS)14%
  • Late aircraft46%
  • 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 → IAD

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

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 69% to 88% on time.

  • Mornings88% on time · p90 15 min · 1,146 flights
  • Middays86% on time · p90 25 min · 1,905 flights
  • Evenings74% on time · p90 55 min · 1,115 flights
  • Afternoons73% on time · p90 55 min · 889 flights
  • Overnights69% on time · p90 75 min · 884 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 76% to 83% on time.

  • Tuesdays83% on time · p90 40 min · 755 flights
  • Wednesdays82% on time · p90 30 min · 827 flights
  • Thursdays81% on time · p90 35 min · 882 flights
  • Mondays80% on time · p90 35 min · 903 flights
  • Saturdays78% on time · p90 40 min · 768 flights
  • Sundays78% on time · p90 55 min · 917 flights
  • Fridays76% on time · p90 45 min · 887 flights
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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.