OnTimeStats

Historical on-time performance

Bozeman to Atlanta

1,640 miData through May 2026Source: US DOT · BTS

Flights on BZN–ATL arrive on time 83% of the time over the last 12 months.

On-time rate83%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled1.3%of scheduled flights

based on 392 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Delta Air Lines
    On-time83%
    Medianon time
    p9030 min
    Cancel1.3%
    Flights392

Why flights run late

Delay causes

  • Airline57%
  • Weather15%
  • Air traffic (NAS)7%
  • Late aircraft20%
  • Security0%

Most delay minutes here are attributed to Airline.

When flights don't go

Why flights were cancelled

  • Airline40%
  • Weather60%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 5 cancellations with a reported cause (BTS reports causes from June 2003).

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly BZN → ATL

All airlines · rolling 36 months (2023-06 .. 2026-05).

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 79% to 82% on time.

  • Afternoons82% on time · p90 30 min · 867 flights
  • Middays79% on time · p90 30 min · 290 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 74% to 88% on time.

  • Thursdays88% on time · p90 15 min · 160 flights · limited
  • Tuesdays86% on time · p90 25 min · 139 flights · limited
  • Wednesdays85% on time · p90 20 min · 137 flights · limited
  • Fridays84% on time · p90 25 min · 164 flights · limited
  • Mondays83% on time · p90 25 min · 161 flights · limited
  • Saturdays76% on time · p90 50 min · 205 flights
  • Sundays74% on time · p90 40 min · 191 flights · limited

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.