PlainFlights

STT vs SJU - Airport Comparison

Select two airports to compare on-time performance, delays, cancellations, and top routes using U.S. Department of Transportation Bureau of Transportation Statistics (BTS) data (2020–2025) across all 50 states. See our methodology for how metrics are computed.

Airport A
STT

Charlotte Amalie, VI

Charlotte Amalie, U.S. Virgin Islands

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Airport B
SJU

San Juan, PR

San Juan, Puerto Rico

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Key Performance Metrics

BTS on-time performance data, 2020–2025 cumulative.

Metric STT SJU
On-Time Rate (higher is better) 81.5% 76.1%
Avg Delay (lower is better) 79.9 min 78.5 min
Delay Rate (lower is better) 18.5% 23.9%
Cancellation Rate (lower is better) 0.73% 0.85%
Total Flights 61,916 366,579
Delayed Flights 11,438 87,503
Cancelled Flights 451 3,126
Top Delay Cause Late Aircraft Late Aircraft

✓ / ▲ indicates the more favorable value. Data: BTS On-Time Performance, 2020–2025.

Delay Cause Breakdown

STT - Charlotte Amalie, VI

Late Aircraft 50.0%
Carrier 31.1%
NAS 16.1%
Weather 2.5%
Security 0.3%

SJU - San Juan, PR

Late Aircraft 45.2%
Carrier 38.4%
NAS 15.3%
Weather 0.9%
Security 0.2%

Top Routes

Top routes from STT

Route Flights On-Time
MIA → STT
Charlotte Amalie
5,392 82.8%
STT → MIA
Miami
5,391 84.3%
ATL → STT
Charlotte Amalie
4,063 82.4%
STT → ATL
Atlanta
4,059 83.8%
STT → SJU
San Juan
3,424 74.3%
CLT → STT
Charlotte Amalie
2,849 84.8%

Top routes from SJU

Route Flights On-Time
MCO → SJU
San Juan
35,205 74.1%
SJU → MCO
Orlando
35,197 77%
SJU → JFK
New York
19,165 77.9%
JFK → SJU
San Juan
19,069 72.3%
MIA → SJU
San Juan
14,957 78.3%
SJU → MIA
Miami
14,957 80.5%

Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data (2020–2025) Bureau of Transportation Statistics (BTS), On-Time Performance Data (2020–2025) On-time rates exclude cancelled and diverted flights. PlainFlights is not affiliated with BTS or the DOT

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This tool queries live on-time, delay, and cancellation figures for the two selected airports from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.