OnTimeStats

Historical on-time performance

Denver to Fresno

844 miData through Dec 2025Source: US DOT · BTS

Flights on DEN–FAT 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)
Cancelled0.1%of scheduled flights

based on 1,334 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-time79%
    Medianon time
    p9030 min
    Cancel0.0%
    Flights310
  • SkyWest Airlines
    On-time83%
    Medianon time
    p9035 min
    Cancel0.0%
    Flights781
  • United Airlines
    On-time67%
    Medianon time
    p9070 min
    Cancel0.8%
    Flights243

Why flights run late

Delay causes

  • Airline34%
  • Weather8%
  • Air traffic (NAS)17%
  • Late aircraft41%
  • 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 → FAT

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 68% to 86% on time.

  • Mornings86% on time · p90 20 min · 78 flights · limited
  • Middays81% on time · p90 30 min · 1,948 flights
  • Afternoons78% on time · p90 35 min · 1,237 flights
  • Evenings68% on time · p90 70 min · 1,096 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 75% to 80% on time.

  • Tuesdays80% on time · p90 35 min · 619 flights
  • Sundays78% on time · p90 40 min · 627 flights
  • Mondays77% on time · p90 40 min · 627 flights
  • Wednesdays77% on time · p90 45 min · 621 flights
  • Thursdays76% on time · p90 40 min · 616 flights
  • Fridays75% on time · p90 45 min · 624 flights
  • Saturdays75% on time · p90 40 min · 628 flights
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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.