OnTimeStats

Airport on-time performance

STT

St. Thomas

Data through Dec 2025Source: US DOT · BTS
On-time rate81%flights departing here that arrived on time
Median delayon timetypical departure delay
p90 delay40 min1 in 10 departures is worsetail risk
Cancelled0.9%of scheduled departures
Left the gate on time81%departures that pushed back within 15 min of schedule (DepDel15)

based on 5,044 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

As a connection hub

Arriving here (inbound performance)

These figures reflect inbound flights arriving at this airport — relevant for connections and layovers.

80%arrived on time here
(within 15 min, inbound flights)
  • On time80%
  • 15–59 min late13%
  • 1–2 hr late3%
  • 2 hr+ late2%
  • Cancelled or diverted1%

Arrival outcomes for inbound flights. Last segment = cancelled or diverted.

Bad day: 1 in 10 flights arrives more than 30 min late.

By airline

Carriers departing here (last 12 months)

Delay = arrival delay (ArrDel15-based)

  • American Airlinesbest
    On-time84%
    Medianon time
    p9030 min
    Cancel0.7%
    Flights1,798
  • United Airlines
    On-time83%
    Medianon time
    p9030 min
    Cancel0.8%
    Flights473
  • Delta Air Lines
    On-time80%
    Medianon time
    p9030 min
    Cancel1.3%
    Flights860
  • Spirit Airlines
    On-time78%
    Medianon time
    p9030 min
    Cancel1.2%
    Flights571
  • JetBlue Airways
    On-time74%
    Medianon time
    p9060 min
    Cancel0.7%
    Flights424

Over time

Departure on-time trend

By season

On-time rate by month

Where flights go

Busiest routes

STT → MIA→STT → ATL→STT → SJU→STT → CLT→STT → JFK→STT → FLL→STT → EWR→STT → PHL→STT → MCO→STT → IAD→
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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.