OnTimeStats

Historical on-time performance

Windsor Locks to Nashville

852 miData through Dec 2025Source: US DOT · BTS

Flights on BDL–BNA arrive on time 82% of the time over the last 12 months.

On-time rate82%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights

based on 320 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time82%
    Medianon time
    p9030 min
    Cancel0.0%
    Flights320

Why flights run late

Delay causes

  • Airline28%
  • Weather1%
  • Air traffic (NAS)32%
  • Late aircraft39%
  • 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 BDL → 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 — 97% on time.

  • Mornings97% on time · p90 on time · 58 flights · limited
  • Middays85% on time · p90 20 min · 575 flights
  • Afternoons77% on time · p90 35 min · 414 flights
  • Evenings62% on time · p90 65 min · 77 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 73% to 85% on time.

  • Wednesdays85% on time · p90 35 min · 157 flights · limited
  • Mondays85% on time · p90 20 min · 165 flights · limited
  • Tuesdays83% on time · p90 20 min · 157 flights · limited
  • Thursdays82% on time · p90 30 min · 158 flights · limited
  • Fridays81% on time · p90 30 min · 166 flights · limited
  • Saturdays79% on time · p90 45 min · 155 flights · limited
  • Sundays73% on time · p90 30 min · 173 flights · limited
Advertisement

Keep exploring

Related pages

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.