PlainFlights

MIA vs STX - 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
MIA

Miami, FL

Miami, Florida

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Airport B
STX

Christiansted, VI

Christiansted, U.S. Virgin Islands

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Key Performance Metrics

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

Metric MIA STX
On-Time Rate (higher is better) 77.9% 79.9%
Avg Delay (lower is better) 78.6 min 78.6 min
Delay Rate (lower is better) 22.1% 20.1%
Cancellation Rate (lower is better) 1.02% 0.51%
Total Flights 1,160,127 14,135
Delayed Flights 256,336 2,841
Cancelled Flights 11,802 72
Top Delay Cause Late Aircraft Late Aircraft

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

Delay Cause Breakdown

MIA - Miami, FL

Late Aircraft 37.5%
Carrier 35.8%
NAS 20.4%
Weather 5.9%
Security 0.3%

STX - Christiansted, VI

Late Aircraft 48.6%
Carrier 34.3%
NAS 15.4%
Security 0.9%
Weather 0.7%

Top Routes

Top routes from MIA

Route Flights On-Time
ATL → MIA
Miami
37,418 76.7%
MIA → ATL
Atlanta
37,400 76.9%
MIA → JFK
New York
30,548 73.1%
JFK → MIA
Miami
30,546 75.6%
LGA → MIA
Miami
30,353 76.9%
MIA → LGA
New York
30,316 75.4%

Top routes from STX

Route Flights On-Time
MIA → STX
Christiansted
3,548 78.4%
STX → MIA
Miami
3,547 81%
FLL → STX
Christiansted
796 77.3%
STX → FLL
Fort Lauderdale
796 74.1%

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.