OnTimeStats

Historical on-time performance

Gulfport to Atlanta

352 miData through May 2026Source: US DOT · BTS

Flights on GPT–ATL arrive on time 85% of the time over the last 12 months.

On-time rate85%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled1.7%of scheduled flights

based on 1,316 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-time85%
    Medianon time
    p9025 min
    Cancel1.7%
    Flights1,316

Why flights run late

Delay causes

  • Airline52%
  • Weather4%
  • Air traffic (NAS)7%
  • Late aircraft37%
  • Security0%

Most delay minutes here are attributed to Airline.

When flights don't go

Why flights were cancelled

  • Airline65%
  • Weather35%
  • Air traffic (NAS)0%
  • Security0%

Most cancellations here are attributed to Airline. Shares are among 23 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 GPT → 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 81% to 90% on time.

  • Mornings90% on time · p90 10 min · 1,242 flights
  • Middays89% on time · p90 10 min · 1,062 flights
  • Afternoons86% on time · p90 20 min · 632 flights
  • Evenings81% on time · p90 35 min · 885 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 83% to 90% on time.

  • Tuesdays90% on time · p90 10 min · 547 flights
  • Thursdays88% on time · p90 15 min · 565 flights
  • Wednesdays88% on time · p90 20 min · 546 flights
  • Mondays88% on time · p90 15 min · 568 flights
  • Saturdays87% on time · p90 15 min · 470 flights
  • Fridays84% on time · p90 25 min · 566 flights
  • Sundays83% on time · p90 25 min · 559 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.