OnTimeStats

Historical on-time performance

San Juan to Cleveland

1,839 miData through Dec 2025Source: US DOT · BTS

Flights on SJU–CLE arrive on time 82% of the time over the last 12 months.

On-time rate82%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled2.2%of scheduled flights

based on 93 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Frontier Airlines
    On-time82%
    Medianon time
    p9030 min
    Cancel2.2%
    Flights93

Why flights run late

Delay causes

  • Airline41%
  • Weather0%
  • Air traffic (NAS)26%
  • 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 SJU → CLE

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 36% to 74% on time.

  • Early mornings74% on time · p90 70 min · 50 flights · limited
  • Mornings72% on time · p90 40 min · 285 flights
  • Afternoons36% on time · p90 125 min · 134 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 54% to 73% on time.

  • Fridays73% on time · p90 35 min · 70 flights · limited
  • Wednesdays68% on time · p90 60 min · 68 flights · limited
  • Thursdays61% on time · p90 95 min · 72 flights · limited
  • Mondays60% on time · p90 75 min · 70 flights · limited
  • Tuesdays58% on time · p90 70 min · 67 flights · limited
  • Saturdays56% on time · p90 105 min · 85 flights · limited
  • Sundays54% on time · p90 145 min · 72 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.