OnTimeStats

Historical on-time performance

Los Angeles to Pittsburgh

2,136 miData through Dec 2025Source: US DOT · BTS

Flights on LAX–PIT arrive on time 75% of the time over the last 12 months.

On-time rate75%arrived within 15 min
p90 delay55 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights

based on 153 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • American Airlines
    On-time75%
    Medianon time
    p9055 min
    Cancel0.0%
    Flights153

Why flights run late

Delay causes

  • Airline47%
  • Weather0%
  • Air traffic (NAS)7%
  • Late aircraft46%
  • Security0%

Most delay minutes here are attributed to Airline.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly LAX → PIT

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 74% to 79% on time.

  • Mornings79% on time · p90 45 min · 257 flights
  • Overnights75% on time · p90 50 min · 564 flights
  • Middays74% on time · p90 65 min · 57 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 71% to 84% on time.

  • Wednesdays84% on time · p90 25 min · 112 flights · limited
  • Fridays79% on time · p90 60 min · 135 flights · limited
  • Thursdays78% on time · p90 35 min · 131 flights · limited
  • Tuesdays74% on time · p90 55 min · 108 flights · limited
  • Sundays74% on time · p90 45 min · 134 flights · limited
  • Mondays73% on time · p90 45 min · 135 flights · limited
  • Saturdays71% on time · p90 80 min · 124 flights · limited
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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.