OnTimeStats

Historical on-time performance

Atlanta to Vail

1,312 miData through Dec 2025Source: US DOT · BTS

Flights on ATL–EGE arrive on time 66% of the time over the last 12 months.

On-time rate66%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled1.9%of scheduled flights

based on 159 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-time66%
    Median5 min
    p9040 min
    Cancel1.9%
    Flights159

Why flights run late

Delay causes

  • Airline38%
  • Weather13%
  • Air traffic (NAS)42%
  • Late aircraft6%
  • Security0%

Most delay minutes here are attributed to Air traffic (NAS).

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly ATL → EGE

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 74% to 78% on time.

  • Middays78% on time · p90 40 min · 318 flights
  • Mornings74% on time · p90 35 min · 175 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 69% to 85% on time.

  • Tuesdays85% on time · p90 15 min · 53 flights · limited
  • Mondays80% on time · p90 25 min · 71 flights · limited
  • Wednesdays80% on time · p90 55 min · 54 flights · limited
  • Thursdays79% on time · p90 20 min · 72 flights · limited
  • Saturdays75% on time · p90 55 min · 92 flights · limited
  • Fridays73% on time · p90 45 min · 73 flights · limited
  • Sundays69% on time · p90 55 min · 78 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.