OnTimeStats

Historical on-time performance

Sacramento to Nashville

1,917 miData through Dec 2025Source: US DOT · BTS

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

On-time rate86%arrived within 15 min
p90 delay15 min1 in 10 flights is worse (tail risk)
Cancelled0.3%of scheduled flights

based on 318 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
    p9015 min
    Cancel0.3%
    Flights318

Why flights run late

Delay causes

  • Airline44%
  • Weather0%
  • Air traffic (NAS)27%
  • Late aircraft29%
  • 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 SMF → 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 — 88% on time.

  • Mornings88% on time · p90 15 min · 351 flights
  • Middays78% on time · p90 30 min · 263 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 68% to 89% on time.

  • Sundays89% on time · p90 15 min · 85 flights · limited
  • Wednesdays89% on time · p90 15 min · 74 flights · limited
  • Saturdays86% on time · p90 25 min · 145 flights · limited
  • Thursdays85% on time · p90 15 min · 79 flights · limited
  • Fridays84% on time · p90 20 min · 79 flights · limited
  • Tuesdays81% on time · p90 25 min · 75 flights · limited
  • Mondays68% on time · p90 30 min · 79 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.