OnTimeStats

Historical on-time performance

Philadelphia to Dallas

1,295 miData through Dec 2025Source: US DOT · BTS

Flights on PHL–DAL arrive on time 59% of the time over the last 12 months.

On-time rate59%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled1.6%of scheduled flights

based on 123 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time59%
    Median5 min
    p9040 min
    Cancel1.6%
    Flights123

Why flights run late

Delay causes

  • Airline47%
  • Weather0%
  • Air traffic (NAS)20%
  • Late aircraft33%
  • 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 PHL → DAL

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 63% to 74% on time.

  • Middays74% on time · p90 40 min · 114 flights · limited
  • Afternoons63% on time · p90 40 min · 213 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 66% to 79% on time.

  • Saturdays79% on time · p90 40 min · 67 flights · limited
  • Sundays66% on time · p90 60 min · 76 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.