OnTimeStats

Historical on-time performance

Orlando to St. Thomas

1,246 miData through Dec 2025Source: US DOT · BTS

Flights on MCO–STT arrive on time 84% of the time over the last 12 months.

On-time rate84%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.3%of scheduled flights

based on 332 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Spirit Airlines
    On-time84%
    Medianon time
    p9035 min
    Cancel0.3%
    Flights332

Why flights run late

Delay causes

  • Airline38%
  • Weather4%
  • Air traffic (NAS)37%
  • Late aircraft20%
  • 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 MCO → STT

All airlines · rolling 36 months (2023-01 .. 2025-12).

Best time of day

Mornings are the most reliable time of day to fly this route — 82% on time.

  • Mornings82% on time · p90 35 min · 482 flights
  • Middays72% on time · p90 50 min · 908 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 64% to 85% on time.

  • Tuesdays85% on time · p90 25 min · 176 flights · limited
  • Wednesdays80% on time · p90 40 min · 178 flights · limited
  • Thursdays79% on time · p90 30 min · 205 flights
  • Mondays76% on time · p90 50 min · 209 flights
  • Sundays74% on time · p90 45 min · 200 flights
  • Fridays73% on time · p90 65 min · 210 flights
  • Saturdays64% on time · p90 75 min · 212 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.