OnTimeStats

Historical on-time performance

Cleveland to Washington

288 miData through May 2026Source: US DOT · BTS

Flights on CLE–IAD arrive on time 86% of the time over the last 12 months.

On-time rate86%arrived within 15 min
p90 delay20 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights

based on 772 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Not enough comparable data to name a most-on-time carrier — low-data carriers aren't ranked.

  • United Airlines
    On-time87%
    Medianon time
    p9020 min
    Cancel0.3%
    Flights658
  • Republic Airways
    On-time80%
    Medianon time
    p9035 min
    Cancel2.6%
    Flights114

Why flights run late

Delay causes

  • Airline24%
  • Weather1%
  • Air traffic (NAS)12%
  • Late aircraft63%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline20%
  • Weather80%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 5 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 CLE → IAD

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 77% to 95% on time.

  • Mornings95% on time · p90 on time · 857 flights
  • Middays93% on time · p90 5 min · 544 flights
  • Evenings79% on time · p90 40 min · 457 flights
  • Afternoons77% on time · p90 25 min · 452 flights
  • Overnights77% on time · p90 90 min · 162 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 83% to 91% on time.

  • Tuesdays91% on time · p90 10 min · 385 flights
  • Saturdays90% on time · p90 5 min · 260 flights
  • Fridays88% on time · p90 15 min · 366 flights
  • Thursdays87% on time · p90 20 min · 367 flights
  • Wednesdays87% on time · p90 20 min · 361 flights
  • Mondays86% on time · p90 15 min · 388 flights
  • Sundays83% on time · p90 20 min · 345 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.