OnTimeStats

Historical on-time performance

Washington to Rochester

296 miData through May 2026Source: US DOT · BTS

Flights on DCA–ROC arrive on time 62% of the time over the last 12 months.

On-time rate62%arrived within 15 min
p90 delay80 min1 in 10 flights is worse (tail risk)
Cancelled6.6%of scheduled flights

based on 879 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.

  • Envoy Air
    On-time90%
    Medianon time
    p90on time
    Cancel0.0%
    Flights30
  • Republic Airways
    On-time64%
    Medianon time
    p9085 min
    Cancel11.1%
    Flights45
  • PSA Airlines
    On-time61%
    Medianon time
    p9080 min
    Cancel6.6%
    Flights804

Why flights run late

Delay causes

  • Airline22%
  • Weather5%
  • Air traffic (NAS)11%
  • Late aircraft61%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline5%
  • Weather83%
  • Air traffic (NAS)12%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 58 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 DCA → ROC

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 65% to 82% on time.

  • Middays82% on time · p90 25 min · 864 flights
  • Mornings77% on time · p90 35 min · 370 flights
  • Afternoons70% on time · p90 70 min · 1,077 flights
  • Overnights65% on time · p90 75 min · 941 flights

Best day of week

Saturdays are the most reliable day to fly this route — 81% on time.

  • Saturdays81% on time · p90 35 min · 343 flights
  • Fridays74% on time · p90 50 min · 487 flights
  • Tuesdays73% on time · p90 65 min · 487 flights
  • Sundays72% on time · p90 50 min · 488 flights
  • Thursdays71% on time · p90 50 min · 481 flights
  • Wednesdays70% on time · p90 55 min · 485 flights
  • Mondays68% on time · p90 95 min · 486 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.