OnTimeStats

Historical on-time performance

Denver to Reno

804 miData through May 2026Source: 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)
Cancelled0.3%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

  • United Airlinesbest
    On-time76%
    Medianon time
    p9050 min
    Cancel0.1%
    Flights1,384
  • Southwest Airlines
    On-time70%
    Medianon time
    p9045 min
    Cancel0.5%
    Flights1,091

Why flights run late

Delay causes

  • Airline31%
  • Weather1%
  • Air traffic (NAS)8%
  • Late aircraft59%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline43%
  • Weather43%
  • Air traffic (NAS)14%
  • Security0%

Most cancellations here are attributed to Airline. Shares are among 7 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 DEN → RNO

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 — 87% on time.

  • Mornings87% on time · p90 15 min · 1,247 flights
  • Middays83% on time · p90 25 min · 1,713 flights
  • Afternoons75% on time · p90 45 min · 1,747 flights
  • Evenings67% on time · p90 65 min · 1,337 flights
  • Overnights64% on time · p90 65 min · 1,462 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 40 min · 1,021 flights
  • Wednesdays77% on time · p90 40 min · 1,070 flights
  • Mondays77% on time · p90 40 min · 1,111 flights
  • Fridays74% on time · p90 45 min · 1,122 flights
  • Saturdays74% on time · p90 45 min · 992 flights
  • Sundays73% on time · p90 50 min · 1,115 flights
  • Thursdays73% on time · p90 50 min · 1,075 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.