PlainFlights

MIA vs MSY - 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
MSY

New Orleans, LA

New Orleans, Louisiana

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Key Performance Metrics

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

Metric MIA MSY
On-Time Rate (higher is better) 77.9% 79.9%
Avg Delay (lower is better) 78.6 min 70.6 min
Delay Rate (lower is better) 22.1% 20.1%
Cancellation Rate (lower is better) 1.02% 1.51%
Total Flights 1,160,127 539,385
Delayed Flights 256,336 108,300
Cancelled Flights 11,802 8,156
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%

MSY - New Orleans, LA

Late Aircraft 47.3%
Carrier 28.7%
NAS 19.2%
Weather 4.6%
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 MSY

Route Flights On-Time
MSY → ATL
Atlanta
24,869 85.3%
ATL → MSY
New Orleans
24,805 81.6%
MSY → IAH
Houston
18,136 84.4%
IAH → MSY
New Orleans
18,111 81.6%
DFW → MSY
New Orleans
16,235 72.5%
MSY → DFW
Dallas/Fort Worth
16,228 77.2%

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.