OnTimeStats

Historical on-time performance

Spokane to San Diego

1,027 miData through Dec 2025Source: US DOT · BTS

Flights on GEG–SAN arrive on time 92% of the time over the last 12 months.

On-time rate92%arrived within 15 min
p90 delay5 min1 in 10 flights is worse (tail risk)
Cancelled1.9%of scheduled flights

based on 214 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Alaska Airlines
    On-time92%
    Medianon time
    p905 min
    Cancel1.9%
    Flights214

Why flights run late

Delay causes

  • Airline66%
  • Weather0%
  • Air traffic (NAS)34%
  • Late aircraft0%
  • Security0%

Most delay minutes here are attributed to Airline.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly GEG → SAN

All airlines · rolling 36 months (2023-01 .. 2025-12).

Best day of week

On-time rates are fairly even by day on this route — ranging from 86% to 91% on time.

  • Thursdays91% on time · p90 10 min · 149 flights · limited
  • Wednesdays90% on time · p90 10 min · 145 flights · limited
  • Saturdays90% on time · p90 10 min · 151 flights · limited
  • Mondays89% on time · p90 15 min · 150 flights · limited
  • Tuesdays89% on time · p90 10 min · 145 flights · limited
  • Fridays88% on time · p90 15 min · 150 flights · limited
  • Sundays86% on time · p90 25 min · 139 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.