OnTimeStats

Historical on-time performance

Atlanta to Green Bay

774 miData through Dec 2025Source: US DOT · BTS

Flights on ATL–GRB arrive on time 76% of the time over the last 12 months.

On-time rate76%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights

based on 342 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-time76%
    Medianon time
    p9040 min
    Cancel0.6%
    Flights342

Why flights run late

Delay causes

  • Airline45%
  • Weather13%
  • Air traffic (NAS)18%
  • Late aircraft24%
  • Security0%

Most delay minutes here are attributed to Airline.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly ATL → GRB

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 77% to 83% on time.

  • Evenings83% on time · p90 25 min · 66 flights · limited
  • Overnights77% on time · p90 35 min · 1,027 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 72% to 85% on time.

  • Wednesdays85% on time · p90 20 min · 157 flights · limited
  • Tuesdays85% on time · p90 25 min · 157 flights · limited
  • Mondays77% on time · p90 30 min · 157 flights · limited
  • Fridays76% on time · p90 25 min · 156 flights · limited
  • Thursdays74% on time · p90 60 min · 156 flights · limited
  • Sundays73% on time · p90 45 min · 159 flights · limited
  • Saturdays72% on time · p90 45 min · 158 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.