OnTimeStats

Historical on-time performance

Portland to Charlotte

812 miData through Dec 2025Source: US DOT · BTS

Flights on PWM–CLT arrive on time 79% of the time over the last 12 months.

On-time rate79%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled0.8%of scheduled flights

based on 609 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • PSA Airlinesbest
    On-time88%
    Medianon time
    p9010 min
    Cancel2.0%
    Flights153
  • American Airlines
    On-time77%
    Medianon time
    p9050 min
    Cancel0.4%
    Flights456

Why flights run late

Delay causes

  • Airline30%
  • Weather5%
  • Air traffic (NAS)25%
  • Late aircraft40%
  • 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 PWM → CLT

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 — 86% on time.

  • Mornings86% on time · p90 20 min · 956 flights
  • Middays78% on time · p90 40 min · 469 flights
  • Afternoons67% on time · p90 65 min · 480 flights
  • Evenings59% on time · p90 125 min · 125 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 74% to 82% on time.

  • Wednesdays82% on time · p90 40 min · 274 flights
  • Thursdays81% on time · p90 40 min · 293 flights
  • Tuesdays80% on time · p90 35 min · 273 flights
  • Mondays78% on time · p90 45 min · 287 flights
  • Sundays75% on time · p90 50 min · 292 flights
  • Saturdays75% on time · p90 50 min · 329 flights
  • Fridays74% on time · p90 75 min · 286 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.