OnTimeStats

Historical on-time performance

Nashville to Pittsburgh

462 miData through Dec 2025Source: US DOT · BTS

Flights on BNA–PIT arrive on time 79% of the time over the last 12 months.

On-time rate79%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.5%of scheduled flights

based on 985 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time79%
    Medianon time
    p9035 min
    Cancel0.5%
    Flights985

Why flights run late

Delay causes

  • Airline26%
  • Weather2%
  • Air traffic (NAS)7%
  • Late aircraft65%
  • 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 BNA → PIT

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 — 93% on time.

  • Mornings93% on time · p90 5 min · 476 flights
  • Middays90% on time · p90 15 min · 711 flights
  • Evenings74% on time · p90 45 min · 814 flights
  • Afternoons74% on time · p90 40 min · 491 flights
  • Overnights67% on time · p90 55 min · 412 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 72% to 88% on time.

  • Tuesdays88% on time · p90 20 min · 416 flights
  • Wednesdays85% on time · p90 20 min · 372 flights
  • Mondays81% on time · p90 30 min · 383 flights
  • Fridays81% on time · p90 30 min · 380 flights
  • Thursdays79% on time · p90 35 min · 519 flights
  • Saturdays78% on time · p90 35 min · 267 flights
  • Sundays72% on time · p90 50 min · 567 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.