OnTimeStats

Historical on-time performance

Richmond to Denver

1,482 miData through May 2026Source: US DOT · BTS

Flights on RIC–DEN arrive on time 79% of the time over the last 12 months.

On-time rate79%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.8%of scheduled flights

based on 497 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.

  • United Airlines
    On-time84%
    Medianon time
    p9025 min
    Cancel1.2%
    Flights346
  • Southwest Airlines
    On-time68%
    Medianon time
    p9045 min
    Cancel0.0%
    Flights151

Why flights run late

Delay causes

  • Airline60%
  • Weather0%
  • Air traffic (NAS)16%
  • Late aircraft24%
  • Security0%

Most delay minutes here are attributed to Airline.

When flights don't go

Why flights were cancelled

  • Airline50%
  • Weather50%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Airline. Shares are among 4 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 RIC → DEN

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 63% to 85% on time.

  • Mornings85% on time · p90 20 min · 1,193 flights
  • Middays83% on time · p90 25 min · 208 flights
  • Evenings70% on time · p90 70 min · 159 flights · limited
  • Afternoons63% on time · p90 60 min · 583 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 74% to 84% on time.

  • Wednesdays84% on time · p90 20 min · 273 flights
  • Tuesdays79% on time · p90 30 min · 279 flights
  • Mondays79% on time · p90 40 min · 308 flights
  • Saturdays78% on time · p90 30 min · 302 flights
  • Fridays76% on time · p90 40 min · 316 flights
  • Thursdays76% on time · p90 35 min · 331 flights
  • Sundays74% on time · p90 45 min · 334 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.