OnTimeStats

Historical on-time performance

San Juan to Dallas-Fort Worth

2,165 miData through Dec 2025Source: US DOT · BTS

Flights on SJU–DFW arrive on time 78% of the time over the last 12 months.

On-time rate78%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights

based on 700 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • American Airlines
    On-time74%
    Medianon time
    p9045 min
    Cancel0.5%
    Flights550
  • Spirit Airlinesbest
    On-time92%
    Medianon time
    p905 min
    Cancel0.7%
    Flights150

Why flights run late

Delay causes

  • Airline29%
  • Weather1%
  • Air traffic (NAS)15%
  • Late aircraft54%
  • Security0%

Most delay minutes here are attributed to Late aircraft.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly SJU → DFW

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 61% to 85% on time.

  • Early mornings85% on time · p90 30 min · 234 flights
  • Mornings81% on time · p90 30 min · 838 flights
  • Middays75% on time · p90 40 min · 312 flights
  • Overnights74% on time · p90 70 min · 138 flights · limited
  • Evenings70% on time · p90 60 min · 273 flights
  • Afternoons61% on time · p90 60 min · 878 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 67% to 76% on time.

  • Thursdays76% on time · p90 40 min · 388 flights
  • Fridays75% on time · p90 45 min · 396 flights
  • Tuesdays73% on time · p90 45 min · 350 flights
  • Sundays73% on time · p90 40 min · 401 flights
  • Mondays73% on time · p90 60 min · 403 flights
  • Wednesdays70% on time · p90 50 min · 335 flights
  • Saturdays67% on time · p90 55 min · 400 flights
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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.