OnTimeStats

Historical on-time performance

San Diego to Kona

2,556 miData through Dec 2025Source: US DOT · BTS

Flights on SAN–KOA arrive on time 74% of the time over the last 12 months.

On-time rate74%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.4%of scheduled flights

based on 245 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Alaska Airlines
    On-time74%
    Medianon time
    p9035 min
    Cancel0.4%
    Flights245

Why flights run late

Delay causes

  • Airline30%
  • Weather0%
  • Air traffic (NAS)44%
  • Late aircraft26%
  • Security0%

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

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly SAN → KOA

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 73% to 77% on time.

  • Middays77% on time · p90 35 min · 699 flights
  • Mornings73% on time · p90 35 min · 296 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 73% to 80% on time.

  • Wednesdays80% on time · p90 30 min · 127 flights · limited
  • Mondays80% on time · p90 35 min · 126 flights · limited
  • Saturdays76% on time · p90 35 min · 156 flights · limited
  • Fridays76% on time · p90 50 min · 128 flights · limited
  • Thursdays75% on time · p90 40 min · 153 flights · limited
  • Sundays73% on time · p90 30 min · 148 flights · limited
  • Tuesdays73% on time · p90 40 min · 157 flights · limited
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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.