OnTimeStats

Historical on-time performance

New York to Portland

274 miData through Dec 2025Source: US DOT · BTS

Flights on JFK–PWM arrive on time 67% of the time over the last 12 months.

On-time rate67%arrived within 15 min
p90 delay90 min1 in 10 flights is worse (tail risk)
Cancelled3.9%of scheduled flights

based on 389 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • JetBlue Airways
    On-time67%
    Medianon time
    p9090 min
    Cancel3.9%
    Flights389

Why flights run late

Delay causes

  • Airline41%
  • Weather0%
  • Air traffic (NAS)6%
  • 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 JFK → PWM

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 50% to 84% on time.

  • Mornings84% on time · p90 25 min · 485 flights
  • Afternoons81% on time · p90 30 min · 321 flights
  • Middays81% on time · p90 35 min · 629 flights
  • Overnights70% on time · p90 60 min · 970 flights
  • Evenings50% on time · p90 105 min · 245 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 69% to 81% on time.

  • Wednesdays81% on time · p90 30 min · 373 flights
  • Tuesdays78% on time · p90 45 min · 372 flights
  • Mondays78% on time · p90 35 min · 383 flights
  • Thursdays75% on time · p90 45 min · 379 flights
  • Fridays72% on time · p90 60 min · 379 flights
  • Saturdays69% on time · p90 55 min · 379 flights
  • Sundays69% on time · p90 60 min · 385 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.