OnTimeStats

Historical on-time performance

Washington to Cleveland

288 miData through Dec 2025Source: US DOT · BTS

Flights on IAD–CLE arrive on time 83% of the time over the last 12 months.

On-time rate83%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled1.2%of scheduled flights

based on 860 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.

  • United Airlines
    On-time84%
    Medianon time
    p9035 min
    Cancel0.7%
    Flights585
  • Republic Airways
    On-time82%
    Medianon time
    p9025 min
    Cancel2.2%
    Flights275

Why flights run late

Delay causes

  • Airline34%
  • Weather9%
  • Air traffic (NAS)16%
  • Late aircraft40%
  • 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 IAD → CLE

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 — 94% on time.

  • Mornings94% on time · p90 5 min · 493 flights
  • Middays90% on time · p90 10 min · 447 flights
  • Overnights80% on time · p90 35 min · 865 flights
  • Afternoons80% on time · p90 60 min · 84 flights · limited
  • Evenings73% on time · p90 50 min · 584 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 79% to 87% on time.

  • Tuesdays87% on time · p90 20 min · 385 flights
  • Wednesdays86% on time · p90 20 min · 371 flights
  • Mondays83% on time · p90 20 min · 402 flights
  • Saturdays82% on time · p90 30 min · 228 flights
  • Fridays82% on time · p90 30 min · 369 flights
  • Sundays82% on time · p90 25 min · 341 flights
  • Thursdays79% on time · p90 35 min · 377 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.