OnTimeStats

Historical on-time performance

Santa Ana to Portland

859 miData through May 2026Source: US DOT · BTS

Flights on SNA–PDX 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)
Cancelled1.3%of scheduled flights

based on 1,543 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
    Cancel1.3%
    Flights1,543

Why flights run late

Delay causes

  • Airline24%
  • Weather0%
  • Air traffic (NAS)12%
  • Late aircraft64%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline80%
  • Weather20%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Airline. Shares are among 20 cancellations with a reported cause (BTS reports causes from June 2003).

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly SNA → PDX

All airlines · rolling 36 months (2023-06 .. 2026-05).

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 87% to 92% on time.

  • Overnights92% on time · p90 5 min · 374 flights
  • Mornings91% on time · p90 10 min · 1,341 flights
  • Evenings90% on time · p90 10 min · 682 flights
  • Middays88% on time · p90 15 min · 1,153 flights
  • Afternoons87% on time · p90 15 min · 575 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 87% to 92% on time.

  • Wednesdays92% on time · p90 5 min · 564 flights
  • Saturdays92% on time · p90 5 min · 558 flights
  • Tuesdays91% on time · p90 10 min · 567 flights
  • Mondays90% on time · p90 10 min · 612 flights
  • Fridays88% on time · p90 15 min · 611 flights
  • Thursdays87% on time · p90 15 min · 605 flights
  • Sundays87% on time · p90 15 min · 608 flights

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.