PlainFlights

MIA vs JFK - 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

View full profile →
Airport B
JFK

New York, NY

New York, New York

View full profile →

Key Performance Metrics

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

Metric MIA JFK
On-Time Rate (higher is better) 77.9% 79.4%
Avg Delay (lower is better) 78.6 min 82.5 min
Delay Rate (lower is better) 22.1% 20.6%
Cancellation Rate (lower is better) 1.02% 1.33%
Total Flights 1,160,127 1,274,816
Delayed Flights 256,336 263,153
Cancelled Flights 11,802 16,932
Top Delay Cause Late Aircraft Carrier

✓ / ▲ 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%

JFK - New York, NY

Carrier 43.4%
Late Aircraft 28.3%
NAS 24.4%
Weather 3.6%
Security 0.2%

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 JFK

Route Flights On-Time
JFK → LAX
Los Angeles
53,628 81.3%
LAX → JFK
New York
53,619 81.8%
JFK → SFO
San Francisco
35,481 81.9%
SFO → JFK
New York
35,481 83.2%
JFK → BOS
Boston
30,732 77.6%
BOS → JFK
New York
30,700 80.3%

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.