OnTimeStats

Historical on-time performance

San Jose to Nashville

1,947 miData through Dec 2025Source: US DOT · BTS

Flights on SJC–BNA arrive on time 86% of the time over the last 12 months.

On-time rate86%arrived within 15 min
p90 delay20 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights

based on 214 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time86%
    Medianon time
    p9020 min
    Cancel0.0%
    Flights214

Why flights run late

Delay causes

  • Airline45%
  • Weather0%
  • Air traffic (NAS)11%
  • Late aircraft44%
  • 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 SJC → BNA

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 — 90% on time.

  • Mornings90% on time · p90 10 min · 555 flights
  • Middays79% on time · p90 25 min · 149 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 84% to 93% on time.

  • Saturdays93% on time · p90 5 min · 80 flights · limited
  • Thursdays90% on time · p90 15 min · 109 flights · limited
  • Wednesdays90% on time · p90 10 min · 96 flights · limited
  • Mondays86% on time · p90 25 min · 108 flights · limited
  • Tuesdays85% on time · p90 20 min · 96 flights · limited
  • Fridays85% on time · p90 15 min · 109 flights · limited
  • Sundays84% on time · p90 20 min · 121 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.