PlainFlights

BWI 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
BWI

Baltimore, MD

Baltimore, Maryland

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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 BWI SJU
On-Time Rate (higher is better) 78.0% 76.1%
Avg Delay (lower is better) 61.0 min 78.5 min
Delay Rate (lower is better) 22.0% 23.9%
Cancellation Rate (lower is better) 1.25% 0.85%
Total Flights 1,049,006 366,579
Delayed Flights 230,270 87,503
Cancelled Flights 13,150 3,126
Top Delay Cause Carrier Late Aircraft

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

Delay Cause Breakdown

BWI - Baltimore, MD

Carrier 38.9%
Late Aircraft 38.2%
NAS 18.9%
Weather 3.7%
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 BWI

Route Flights On-Time
ATL → BWI
Baltimore
31,846 80.2%
BWI → ATL
Atlanta
31,798 82.1%
MCO → BWI
Baltimore
29,125 77%
BWI → MCO
Orlando
29,050 76.2%
BWI → FLL
Fort Lauderdale
21,397 77.2%
FLL → BWI
Baltimore
21,264 79%

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.