OnTimeStats

Historical on-time performance

Detroit to Washington

405 miData through Dec 2025Source: US DOT · BTS

Flights on DTW–DCA arrive on time 68% of the time over the last 12 months.

On-time rate68%arrived within 15 min
p90 delay70 min1 in 10 flights is worse (tail risk)
Cancelled3.0%of scheduled flights

based on 2,763 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Republic Airwaysbest
    On-time88%
    Medianon time
    p9030 min
    Cancel0.0%
    Flights40
  • Delta Air Lines
    On-time70%
    Medianon time
    p9060 min
    Cancel1.2%
    Flights1,708
  • PSA Airlines
    On-time65%
    Medianon time
    p9090 min
    Cancel6.1%
    Flights1,015

Why flights run late

Delay causes

  • Airline32%
  • Weather6%
  • Air traffic (NAS)35%
  • Late aircraft27%
  • Security0%

Most delay minutes here are attributed to Air traffic (NAS).

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly DTW → DCA

All airlines · rolling 36 months (2023-01 .. 2025-12).

Best time of day

Middays are the most reliable time of day to fly this route — 86% on time.

  • Middays86% on time · p90 20 min · 1,551 flights
  • Mornings82% on time · p90 25 min · 2,688 flights
  • Overnights78% on time · p90 45 min · 1,092 flights
  • Afternoons65% on time · p90 65 min · 1,162 flights
  • Evenings64% on time · p90 80 min · 1,794 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 73% to 82% on time.

  • Saturdays82% on time · p90 40 min · 921 flights
  • Tuesdays79% on time · p90 35 min · 1,235 flights
  • Wednesdays78% on time · p90 50 min · 1,251 flights
  • Thursdays74% on time · p90 45 min · 1,233 flights
  • Mondays74% on time · p90 45 min · 1,259 flights
  • Sundays73% on time · p90 55 min · 1,149 flights
  • Fridays73% on time · p90 55 min · 1,239 flights
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Keep exploring

Related pages

Delay predictorfor this route→DTW airportDetroit→DCA airportWashington→Envoy Air on this routecarrier detail→Envoy Airairline profile→

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.