OnTimeStats

Historical on-time performance

Denver to Richmond

1,482 miData through Dec 2025Source: US DOT · BTS

Flights on DEN–RIC arrive on time 58% of the time over the last 12 months.

On-time rate58%arrived within 15 min
p90 delay85 min1 in 10 flights is worse (tail risk)
Cancelled0.5%of scheduled flights

based on 549 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • United Airlinesbest
    On-time64%
    Medianon time
    p9075 min
    Cancel0.6%
    Flights337
  • Southwest Airlines
    On-time49%
    Median10 min
    p9095 min
    Cancel0.5%
    Flights212

Why flights run late

Delay causes

  • Airline23%
  • Weather2%
  • Air traffic (NAS)17%
  • Late aircraft58%
  • 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 DEN → RIC

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

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 64% to 74% on time.

  • Mornings74% on time · p90 45 min · 317 flights
  • Middays73% on time · p90 30 min · 376 flights
  • Afternoons64% on time · p90 55 min · 157 flights · limited
  • Evenings64% on time · p90 80 min · 1,292 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 63% to 71% on time.

  • Wednesdays71% on time · p90 70 min · 284 flights
  • Tuesdays70% on time · p90 70 min · 289 flights
  • Sundays68% on time · p90 50 min · 317 flights
  • Fridays67% on time · p90 60 min · 315 flights
  • Thursdays67% on time · p90 75 min · 314 flights
  • Mondays67% on time · p90 60 min · 312 flights
  • Saturdays63% on time · p90 60 min · 311 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.