OnTimeStats

Historical on-time performance

Nashville to Savannah

417 miData through Dec 2025Source: US DOT · BTS

Flights on BNA–SAV arrive on time 75% of the time over the last 12 months.

On-time rate75%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled0.8%of scheduled flights

based on 750 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time75%
    Medianon time
    p9045 min
    Cancel0.8%
    Flights750

Why flights run late

Delay causes

  • Airline20%
  • Weather2%
  • Air traffic (NAS)12%
  • Late aircraft66%
  • 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 → SAV

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 59% to 90% on time.

  • Middays90% on time · p90 10 min · 664 flights
  • Mornings87% on time · p90 15 min · 409 flights
  • Afternoons73% on time · p90 40 min · 471 flights
  • Evenings66% on time · p90 60 min · 343 flights
  • Overnights59% on time · p90 90 min · 86 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 75% to 85% on time.

  • Tuesdays85% on time · p90 20 min · 278 flights
  • Wednesdays82% on time · p90 30 min · 276 flights
  • Fridays80% on time · p90 25 min · 284 flights
  • Saturdays80% on time · p90 30 min · 264 flights
  • Mondays79% on time · p90 30 min · 284 flights
  • Thursdays78% on time · p90 30 min · 277 flights
  • Sundays75% on time · p90 45 min · 310 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.