OnTimeStats

Historical on-time performance

Nashville to Oklahoma City

616 miData through Dec 2025Source: US DOT · BTS

Flights on BNA–OKC arrive on time 69% of the time over the last 12 months.

On-time rate69%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights

based on 287 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time69%
    Medianon time
    p9040 min
    Cancel0.0%
    Flights287

Why flights run late

Delay causes

  • Airline21%
  • Weather6%
  • Air traffic (NAS)8%
  • 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 → OKC

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 78% to 79% on time.

  • Middays79% on time · p90 25 min · 217 flights
  • Afternoons78% on time · p90 35 min · 356 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 71% to 82% on time.

  • Saturdays82% on time · p90 35 min · 138 flights · limited
  • Tuesdays81% on time · p90 30 min · 67 flights · limited
  • Wednesdays80% on time · p90 20 min · 66 flights · limited
  • Thursdays78% on time · p90 25 min · 77 flights · limited
  • Sundays74% on time · p90 55 min · 117 flights · limited
  • Mondays72% on time · p90 40 min · 75 flights · limited
  • Fridays71% on time · p90 45 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.