OnTimeStats

Historical on-time performance

Portland to Kahului

2,562 miData through May 2026Source: US DOT · BTS

Flights on PDX–OGG arrive on time 88% of the time over the last 12 months.

On-time rate88%arrived within 15 min
p90 delay15 min1 in 10 flights is worse (tail risk)
Cancelled0.3%of scheduled flights

based on 717 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Alaska Airlines
    On-time88%
    Medianon time
    p9015 min
    Cancel0.3%
    Flights717

Why flights run late

Delay causes

  • Airline43%
  • Weather10%
  • Air traffic (NAS)37%
  • Late aircraft10%
  • Security0%

Most delay minutes here are attributed to Airline.

When flights don't go

Why flights were cancelled

  • Airline50%
  • Weather50%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Airline. Shares are among 2 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 PDX → OGG

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 88% to 89% on time.

  • Mornings89% on time · p90 10 min · 1,310 flights
  • Evenings88% on time · p90 15 min · 403 flights
  • Middays88% on time · p90 15 min · 337 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 87% to 93% on time.

  • Mondays93% on time · p90 10 min · 285 flights
  • Thursdays89% on time · p90 10 min · 298 flights
  • Sundays88% on time · p90 15 min · 301 flights
  • Wednesdays88% on time · p90 15 min · 290 flights
  • Tuesdays88% on time · p90 15 min · 299 flights
  • Saturdays87% on time · p90 15 min · 310 flights
  • Fridays87% on time · p90 15 min · 301 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.