OnTimeStats

Historical on-time performance

St. Croix Island to Fort Lauderdale

1,140 miData through May 2026Source: US DOT · BTS

Flights on STX–FLL arrive on time 87% of the time over the last 12 months.

On-time rate87%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights

based on 62 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Spirit Airlines
    On-time87%
    Medianon time
    p9025 min
    Cancel0.0%
    Flights62

Why flights run late

Delay causes

  • Airline27%
  • Weather0%
  • Air traffic (NAS)41%
  • Late aircraft32%
  • Security0%

Most delay minutes here are attributed to Air traffic (NAS).

When flights don't go

Why flights were cancelled

  • Airline27%
  • Weather60%
  • Air traffic (NAS)13%
  • Security0%

Most cancellations here are attributed to Weather. Shares are among 15 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 STX → FLL

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 62% to 66% on time.

  • Evenings66% on time · p90 65 min · 329 flights
  • Afternoons62% on time · p90 75 min · 318 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 57% to 72% on time.

  • Fridays72% on time · p90 65 min · 150 flights · limited
  • Mondays65% on time · p90 65 min · 140 flights · limited
  • Saturdays57% on time · p90 105 min · 118 flights · limited

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.