OnTimeStats

Historical on-time performance

Reno to Denver

804 miData through May 2026Source: US DOT · BTS

Flights on RNO–DEN arrive on time 84% of the time over the last 12 months.

On-time rate84%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled0.3%of scheduled flights

based on 2,475 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.

  • Southwest Airlines
    On-time86%
    Medianon time
    p9025 min
    Cancel0.3%
    Flights1,092
  • United Airlines
    On-time83%
    Medianon time
    p9030 min
    Cancel0.4%
    Flights1,383

Why flights run late

Delay causes

  • Airline25%
  • Weather6%
  • Air traffic (NAS)36%
  • Late aircraft33%
  • Security0%

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

When flights don't go

Why flights were cancelled

  • Airline75%
  • Weather25%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Airline. Shares are among 8 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 RNO → DEN

All airlines · rolling 36 months (2023-06 .. 2026-05).

Best time of day

Mornings are the most reliable time of day to fly this route — 90% on time.

  • Mornings90% on time · p90 10 min · 3,553 flights
  • Middays82% on time · p90 35 min · 2,470 flights
  • Evenings80% on time · p90 45 min · 484 flights
  • Afternoons67% on time · p90 70 min · 992 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 81% to 87% on time.

  • Wednesdays87% on time · p90 20 min · 1,066 flights
  • Saturdays87% on time · p90 20 min · 988 flights
  • Tuesdays84% on time · p90 25 min · 1,022 flights
  • Thursdays83% on time · p90 30 min · 1,076 flights
  • Mondays82% on time · p90 30 min · 1,109 flights
  • Fridays81% on time · p90 40 min · 1,123 flights
  • Sundays81% on time · p90 30 min · 1,115 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.