OnTimeStats

Historical on-time performance

Austin to Portland

1,715 miData through Dec 2025Source: US DOT · BTS

Flights on AUS–PDX arrive on time 79% of the time over the last 12 months.

On-time rate79%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled1.4%of scheduled flights

based on 486 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Alaska Airlines
    On-time79%
    Medianon time
    p9030 min
    Cancel1.4%
    Flights486

Why flights run late

Delay causes

  • Airline19%
  • Weather5%
  • Air traffic (NAS)24%
  • Late aircraft52%
  • 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 AUS → PDX

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

Best time of day

Mornings are the most reliable time of day to fly this route — 84% on time.

  • Mornings84% on time · p90 15 min · 537 flights
  • Evenings71% on time · p90 40 min · 621 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 72% to 81% on time.

  • Tuesdays81% on time · p90 35 min · 171 flights · limited
  • Saturdays80% on time · p90 25 min · 177 flights · limited
  • Fridays78% on time · p90 25 min · 186 flights · limited
  • Sundays77% on time · p90 30 min · 183 flights · limited
  • Mondays76% on time · p90 35 min · 188 flights · limited
  • Wednesdays74% on time · p90 30 min · 168 flights · limited
  • Thursdays72% on time · p90 35 min · 177 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.