PlainFlights

SJU vs RDU - 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
SJU

San Juan, PR

San Juan, Puerto Rico

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Airport B
RDU

Raleigh/Durham, NC

Raleigh/Durham, North Carolina

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Key Performance Metrics

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

Metric SJU RDU
On-Time Rate (higher is better) 76.1% 81.6%
Avg Delay (lower is better) 78.5 min 77.6 min
Delay Rate (lower is better) 23.9% 18.4%
Cancellation Rate (lower is better) 0.85% 1.18%
Total Flights 366,579 616,332
Delayed Flights 87,503 113,435
Cancelled Flights 3,126 7,264
Top Delay Cause Late Aircraft Late Aircraft

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

Delay Cause Breakdown

SJU - San Juan, PR

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

RDU - Raleigh/Durham, NC

Late Aircraft 41.9%
Carrier 30.4%
NAS 23.9%
Weather 3.8%
Security 0.1%

Top Routes

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%

Top routes from RDU

Route Flights On-Time
ATL → RDU
Raleigh/Durham
25,309 83.4%
RDU → ATL
Atlanta
25,294 87.4%
LGA → RDU
Raleigh/Durham
19,534 81.3%
RDU → LGA
New York
19,530 79.6%
RDU → JFK
New York
19,088 79.9%
JFK → RDU
Raleigh/Durham
19,083 80.6%

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.