OnTimeStats

Historical on-time performance

Charlotte to Portland

812 miData through Dec 2025Source: US DOT · BTS

Flights on CLT–PWM arrive on time 76% of the time over the last 12 months.

On-time rate76%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled1.5%of scheduled flights

based on 611 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Too close to call — no single carrier is clearly more on-time here.

  • American Airlines
    On-time76%
    Medianon time
    p9045 min
    Cancel0.4%
    Flights456
  • PSA Airlines
    On-time77%
    Medianon time
    p9050 min
    Cancel4.5%
    Flights155

Why flights run late

Delay causes

  • Airline36%
  • Weather7%
  • Air traffic (NAS)8%
  • Late aircraft48%
  • 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 CLT → 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 63% to 84% on time.

  • Mornings84% on time · p90 25 min · 333 flights
  • Evenings84% on time · p90 20 min · 97 flights · limited
  • Middays79% on time · p90 40 min · 622 flights
  • Afternoons67% on time · p90 75 min · 143 flights · limited
  • Overnights63% on time · p90 80 min · 837 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 69% to 77% on time.

  • Wednesdays77% on time · p90 55 min · 278 flights
  • Saturdays75% on time · p90 45 min · 329 flights
  • Tuesdays74% on time · p90 55 min · 273 flights
  • Mondays73% on time · p90 60 min · 286 flights
  • Thursdays72% on time · p90 55 min · 291 flights
  • Fridays70% on time · p90 60 min · 288 flights
  • Sundays69% on time · p90 65 min · 290 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.