PlainFlights

ATL 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
ATL

Atlanta, GA

Atlanta, Georgia

View full profile →
Airport B
SJU

San Juan, PR

San Juan, Puerto Rico

View full profile →

Key Performance Metrics

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

Metric ATL SJU
On-Time Rate (higher is better) 83.7% 76.1%
Avg Delay (lower is better) 72.9 min 78.5 min
Delay Rate (lower is better) 16.3% 23.9%
Cancellation Rate (lower is better) 0.79% 0.85%
Total Flights 3,758,561 366,579
Delayed Flights 613,025 87,503
Cancelled Flights 29,771 3,126
Top Delay Cause Carrier Late Aircraft

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

Delay Cause Breakdown

ATL - Atlanta, GA

Carrier 46.8%
Late Aircraft 27.2%
NAS 19.4%
Weather 6.4%
Security 0.2%

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 ATL

Route Flights On-Time
MCO → ATL
Atlanta
47,291 78.1%
ATL → MCO
Orlando
47,234 76.2%
FLL → ATL
Atlanta
42,458 77.5%
ATL → FLL
Fort Lauderdale
42,441 77.2%
ATL → LGA
New York
42,079 80.8%
LGA → ATL
Atlanta
42,078 82.2%

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.