OnTimeStats

Historical on-time performance

San Diego to Spokane

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

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

On-time rate74%arrived within 15 min
p90 delay50 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-time74%
    Medianon time
    p9050 min
    Cancel1.9%
    Flights214

Why flights run late

Delay causes

  • Airline32%
  • Weather1%
  • Air traffic (NAS)11%
  • Late aircraft57%
  • 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 SAN → GEG

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 75% to 76% on time.

  • Overnights76% on time · p90 40 min · 369 flights
  • Evenings75% on time · p90 45 min · 654 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 69% to 81% on time.

  • Tuesdays81% on time · p90 25 min · 139 flights · limited
  • Mondays79% on time · p90 40 min · 151 flights · limited
  • Fridays77% on time · p90 45 min · 150 flights · limited
  • Sundays75% on time · p90 45 min · 151 flights · limited
  • Wednesdays74% on time · p90 60 min · 150 flights · limited
  • Saturdays72% on time · p90 60 min · 139 flights · limited
  • Thursdays69% on time · p90 50 min · 150 flights · limited
Advertisement

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.