OnTimeStats

Historical on-time performance

Denver to Oakland

957 miData through Dec 2025Source: US DOT · BTS

Flights on DEN–OAK arrive on time 67% of the time over the last 12 months.

On-time rate67%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled0.7%of scheduled flights

based on 1,705 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time67%
    Medianon time
    p9060 min
    Cancel0.7%
    Flights1,705

Why flights run late

Delay causes

  • Airline33%
  • Weather1%
  • Air traffic (NAS)8%
  • 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 → OAK

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 — 87% on time.

  • Mornings87% on time · p90 15 min · 1,553 flights
  • Middays78% on time · p90 30 min · 1,018 flights
  • Afternoons64% on time · p90 45 min · 884 flights
  • Evenings57% on time · p90 65 min · 858 flights
  • Overnights52% on time · p90 80 min · 1,223 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 66% to 73% on time.

  • Tuesdays73% on time · p90 40 min · 780 flights
  • Wednesdays72% on time · p90 45 min · 774 flights
  • Fridays69% on time · p90 50 min · 817 flights
  • Saturdays69% on time · p90 50 min · 696 flights
  • Mondays69% on time · p90 45 min · 817 flights
  • Thursdays67% on time · p90 50 min · 820 flights
  • Sundays66% on time · p90 50 min · 832 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.