OnTimeStats

Historical on-time performance

Dallas-Fort Worth to Washington

1,172 miData through Dec 2025Source: US DOT · BTS

Flights on DFW–IAD arrive on time 73% of the time over the last 12 months.

On-time rate73%arrived within 15 min
p90 delay55 min1 in 10 flights is worse (tail risk)
Cancelled1.9%of scheduled flights

based on 1,776 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • United Airlinesbest
    On-time81%
    Medianon time
    p9035 min
    Cancel1.3%
    Flights933
  • American Airlines
    On-time65%
    Medianon time
    p9065 min
    Cancel2.6%
    Flights843

Why flights run late

Delay causes

  • Airline31%
  • Weather5%
  • Air traffic (NAS)15%
  • Late aircraft49%
  • 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 DFW → IAD

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 — 87% on time.

  • Mornings87% on time · p90 15 min · 1,236 flights
  • Middays75% on time · p90 45 min · 1,993 flights
  • Evenings67% on time · p90 70 min · 2,058 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 73% to 79% on time.

  • Tuesdays79% on time · p90 40 min · 761 flights
  • Wednesdays76% on time · p90 50 min · 745 flights
  • Mondays75% on time · p90 45 min · 810 flights
  • Fridays74% on time · p90 60 min · 806 flights
  • Saturdays74% on time · p90 65 min · 680 flights
  • Sundays73% on time · p90 45 min · 727 flights
  • Thursdays73% on time · p90 50 min · 793 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.