OnTimeStats

Historical on-time performance

New York to Portland

2,454 miData through Dec 2025Source: US DOT · BTS

Flights on JFK–PDX arrive on time 69% of the time over the last 12 months.

On-time rate69%arrived within 15 min
p90 delay65 min1 in 10 flights is worse (tail risk)
Cancelled1.6%of scheduled flights

based on 829 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Alaska Airlines
    On-time60%
    Medianon time
    p9070 min
    Cancel2.0%
    Flights307
  • Delta Air Linesbest
    On-time74%
    Medianon time
    p9055 min
    Cancel1.3%
    Flights522

Why flights run late

Delay causes

  • Airline27%
  • Weather4%
  • Air traffic (NAS)37%
  • Late aircraft32%
  • Security0%

Most delay minutes here are attributed to Air traffic (NAS).

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly JFK → PDX

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 63% to 87% on time.

  • Middays87% on time · p90 20 min · 501 flights
  • Mornings85% on time · p90 20 min · 483 flights
  • Overnights74% on time · p90 50 min · 437 flights
  • Evenings67% on time · p90 70 min · 1,442 flights
  • Afternoons63% on time · p90 55 min · 57 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 71% to 78% on time.

  • Tuesdays78% on time · p90 40 min · 407 flights
  • Wednesdays78% on time · p90 35 min · 407 flights
  • Fridays74% on time · p90 45 min · 423 flights
  • Saturdays74% on time · p90 50 min · 424 flights
  • Mondays74% on time · p90 55 min · 424 flights
  • Sundays72% on time · p90 55 min · 415 flights
  • Thursdays71% on time · p90 65 min · 420 flights
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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.