OnTimeStats

Historical on-time performance

Charleston to Washington

249 miData through May 2026Source: US DOT · BTS

Flights on CRW–DCA arrive on time 82% of the time over the last 12 months.

On-time rate82%arrived within 15 min
p90 delay20 min1 in 10 flights is worse (tail risk)
Cancelled5.7%of scheduled flights

based on 245 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • PSA Airlines
    On-time82%
    Medianon time
    p9020 min
    Cancel5.7%
    Flights245

Why flights run late

Delay causes

  • Airline71%
  • Weather4%
  • Air traffic (NAS)6%
  • Late aircraft19%
  • Security0%

Most delay minutes here are attributed to Airline.

When flights don't go

Why flights were cancelled

  • Airline7%
  • Weather71%
  • Air traffic (NAS)21%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 14 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 CRW → DCA

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

Best day of week

On-time rates are fairly even by day on this route — ranging from 80% to 85% on time.

  • Thursdays85% on time · p90 15 min · 146 flights · limited
  • Saturdays85% on time · p90 20 min · 143 flights · limited
  • Fridays82% on time · p90 25 min · 148 flights · limited
  • Tuesdays82% on time · p90 15 min · 150 flights · limited
  • Mondays82% on time · p90 25 min · 147 flights · limited
  • Wednesdays81% on time · p90 40 min · 149 flights · limited
  • Sundays80% on time · p90 35 min · 148 flights · limited

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.