OnTimeStats

Historical on-time performance

Raleigh-durham to Washington

227 miData through Dec 2025Source: US DOT · BTS

Flights on RDU–DCA arrive on time 63% of the time over the last 12 months.

On-time rate63%arrived within 15 min
p90 delay75 min1 in 10 flights is worse (tail risk)
Cancelled4.7%of scheduled flights

based on 1,760 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.

  • American Airlines
    On-time73%
    Medianon time
    p9095 min
    Cancel1.7%
    Flights115
  • Envoy Air
    On-time73%
    Medianon time
    p9040 min
    Cancel4.6%
    Flights366
  • Republic Airways
    On-time62%
    Medianon time
    p9060 min
    Cancel5.6%
    Flights576
  • PSA Airlines
    On-time57%
    Medianon time
    p9085 min
    Cancel4.4%
    Flights703

Why flights run late

Delay causes

  • Airline13%
  • Weather6%
  • Air traffic (NAS)32%
  • Late aircraft48%
  • 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 RDU → DCA

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 — 86% on time.

  • Mornings86% on time · p90 15 min · 1,927 flights
  • Middays80% on time · p90 40 min · 2,152 flights
  • Afternoons70% on time · p90 60 min · 1,299 flights
  • Evenings59% on time · p90 60 min · 1,493 flights
  • Overnights43% on time · p90 75 min · 666 flights

Best day of week

Saturdays are the most reliable day to fly this route — 83% on time.

  • Saturdays83% on time · p90 20 min · 619 flights
  • Mondays73% on time · p90 45 min · 1,177 flights
  • Tuesdays73% on time · p90 45 min · 1,170 flights
  • Wednesdays72% on time · p90 45 min · 1,168 flights
  • Sundays71% on time · p90 50 min · 1,109 flights
  • Thursdays70% on time · p90 55 min · 1,141 flights
  • Fridays69% on time · p90 65 min · 1,153 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.