OnTimeStats

Historical on-time performance

Nashville to Dallas

623 miData through Dec 2025Source: US DOT · BTS

Flights on BNA–DAL 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)
Cancelled1.3%of scheduled flights

based on 2,447 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
    Cancel1.3%
    Flights2,447

Why flights run late

Delay causes

  • Airline19%
  • Weather5%
  • Air traffic (NAS)22%
  • Late aircraft54%
  • 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 → DAL

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 — 92% on time.

  • Mornings92% on time · p90 5 min · 2,403 flights
  • Middays81% on time · p90 25 min · 1,321 flights
  • Afternoons71% on time · p90 45 min · 1,198 flights
  • Evenings69% on time · p90 55 min · 1,297 flights
  • Overnights67% on time · p90 70 min · 899 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 75% to 82% on time.

  • Tuesdays82% on time · p90 25 min · 1,026 flights
  • Wednesdays81% on time · p90 25 min · 1,024 flights
  • Saturdays81% on time · p90 30 min · 785 flights
  • Mondays79% on time · p90 35 min · 1,073 flights
  • Fridays78% on time · p90 40 min · 1,067 flights
  • Thursdays77% on time · p90 35 min · 1,056 flights
  • Sundays75% on time · p90 40 min · 1,087 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.