OnTimeStats

Historical on-time performance

Denver to Reno

804 miData through Dec 2025Source: US DOT · BTS

Flights on DEN–RNO arrive on time 73% of the time over the last 12 months.

On-time rate73%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled0.5%of scheduled flights

based on 2,559 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • United Airlinesbest
    On-time75%
    Medianon time
    p9055 min
    Cancel0.1%
    Flights1,467
  • Southwest Airlines
    On-time70%
    Medianon time
    p9045 min
    Cancel0.9%
    Flights1,092

Why flights run late

Delay causes

  • Airline29%
  • Weather2%
  • Air traffic (NAS)10%
  • 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 → RNO

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 — 85% on time.

  • Mornings85% on time · p90 20 min · 1,315 flights
  • Middays82% on time · p90 30 min · 1,854 flights
  • Afternoons75% on time · p90 45 min · 1,509 flights
  • Evenings66% on time · p90 70 min · 1,332 flights
  • Overnights63% on time · p90 65 min · 1,414 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 73% to 78% on time.

  • Tuesdays78% on time · p90 45 min · 1,021 flights
  • Wednesdays76% on time · p90 50 min · 1,062 flights
  • Mondays75% on time · p90 45 min · 1,107 flights
  • Thursdays74% on time · p90 45 min · 1,054 flights
  • Fridays74% on time · p90 45 min · 1,099 flights
  • Saturdays74% on time · p90 50 min · 970 flights
  • Sundays73% on time · p90 50 min · 1,111 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.