OnTimeStats

Historical on-time performance

San Diego to Eugene

850 miData through Dec 2025Source: US DOT · BTS

Flights on SAN–EUG arrive on time 78% of the time over the last 12 months.

On-time rate78%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled1.1%of scheduled flights

based on 184 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.

  • SkyWest Airlines
    On-time82%
    Medianon time
    p9030 min
    Cancel0.0%
    Flights123
  • Alaska Airlines
    On-time69%
    Medianon time
    p9040 min
    Cancel3.3%
    Flights61

Why flights run late

Delay causes

  • Airline14%
  • Weather0%
  • Air traffic (NAS)13%
  • Late aircraft73%
  • 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 → EUG

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 81% on time.

  • Mornings81% on time · p90 30 min · 80 flights · limited
  • Afternoons74% on time · p90 45 min · 395 flights
  • Middays73% on time · p90 40 min · 221 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 68% to 87% on time.

  • Wednesdays87% on time · p90 20 min · 87 flights · limited
  • Tuesdays77% on time · p90 30 min · 86 flights · limited
  • Saturdays75% on time · p90 60 min · 118 flights · limited
  • Mondays73% on time · p90 40 min · 97 flights · limited
  • Fridays72% on time · p90 60 min · 97 flights · limited
  • Thursdays72% on time · p90 50 min · 103 flights · limited
  • Sundays68% on time · p90 40 min · 108 flights · limited
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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.