OnTimeStats

Historical on-time performance

Valparaiso to Atlanta

250 miData through May 2026Source: US DOT · BTS

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

On-time rate83%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled2.0%of scheduled flights

based on 2,386 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
    p9025 min
    Cancel2.0%
    Flights2,386

Why flights run late

Delay causes

  • Airline37%
  • Weather6%
  • Air traffic (NAS)16%
  • Late aircraft42%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

  • Airline63%
  • Weather38%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Airline. Shares are among 48 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 VPS → 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 80% to 87% on time.

  • Mornings87% on time · p90 15 min · 2,740 flights
  • Middays86% on time · p90 25 min · 1,501 flights
  • Evenings80% on time · p90 40 min · 1,088 flights
  • Afternoons80% on time · p90 40 min · 1,371 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 77% to 89% on time.

  • Wednesdays89% on time · p90 10 min · 903 flights
  • Tuesdays88% on time · p90 15 min · 905 flights
  • Thursdays87% on time · p90 20 min · 1,008 flights
  • Mondays85% on time · p90 25 min · 1,007 flights
  • Fridays82% on time · p90 35 min · 1,010 flights
  • Saturdays82% on time · p90 30 min · 901 flights
  • Sundays77% on time · p90 45 min · 998 flights

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.