OnTimeStats

Historical on-time performance

Portland to New York

269 miData through May 2026Source: US DOT · BTS

Flights on PWM–LGA arrive on time 77% of the time over the last 12 months.

On-time rate77%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled4.6%of scheduled flights

based on 1,097 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Republic Airways
    On-time77%
    Medianon time
    p9045 min
    Cancel4.6%
    Flights1,097

Why flights run late

Delay causes

  • Airline28%
  • Weather5%
  • Air traffic (NAS)39%
  • Late aircraft29%
  • Security0%

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

When flights don't go

Why flights were cancelled

  • Airline28%
  • Weather26%
  • Air traffic (NAS)46%
  • Security0%

Most cancellations here are attributed to Air traffic (NAS). Shares are among 50 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 PWM → LGA

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

Best time of day

Mornings are the most reliable time of day to fly this route — 87% on time.

  • Mornings87% on time · p90 15 min · 1,258 flights
  • Middays83% on time · p90 25 min · 1,202 flights
  • Afternoons73% on time · p90 65 min · 808 flights
  • Evenings68% on time · p90 70 min · 641 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 76% to 84% on time.

  • Saturdays84% on time · p90 30 min · 435 flights
  • Wednesdays82% on time · p90 30 min · 577 flights
  • Tuesdays81% on time · p90 30 min · 577 flights
  • Thursdays80% on time · p90 40 min · 584 flights
  • Mondays78% on time · p90 35 min · 588 flights
  • Sundays77% on time · p90 35 min · 561 flights
  • Fridays76% on time · p90 65 min · 587 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.