BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
JFK→MIA

New York, NY (JFK) to Miami, FL (MIA) flight delay odds

74.8% of 4,553 official scheduled JFK-to-MIA flights arrived on time; 15.7% arrived at least 30 minutes late and 2.9% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALVariable
74.8%arrived on time
15.7%30+ min late
2.9%cancelled
4,553scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late9.8%all scheduled flights
120+ minutes late4.7%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival+9.4 mincompleted flights

Which departure time was most reliable for JFK to MIA?

Among qualifying JFK-to-MIA departure window results, Early morning had the highest on-time rate: 84.4% of 1,300 flights. Night was lowest at 63.4% across 41 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning1,30084.4%8.4%2.9%
Late morning93376.2%14.5%2.0%
Afternoon98072.8%16.6%2.4%
Evening1,29966.2%23.1%3.6%
Night4163.4%22.0%7.3%

Which weekday was most reliable for JFK to MIA?

Among qualifying JFK-to-MIA weekday results, Wednesday had the highest on-time rate: 80.2% of 645 flights. Sunday was lowest at 63.4% across 655 flights.

DayFlightsOn time30+ minCancelled
Monday65474.5%14.8%6.0%
Tuesday66477.7%14.2%3.0%
Wednesday64580.2%12.2%1.6%
Thursday65073.1%15.8%1.8%
Friday65178.5%15.8%1.2%
Saturday63476.7%14.7%2.1%
Sunday65563.4%22.4%4.4%

Which airline was most reliable for JFK to MIA?

Among qualifying JFK-to-MIA airline results, Frontier Airlines had the highest on-time rate: 77.4% of 274 flights. Delta Air Lines was lowest at 73.4% across 1,620 flights.

AirlineFlightsOn time30+ minCancelled
American Airlines2,65975.4%16.1%2.7%
Delta Air Lines1,62073.4%15.6%3.2%
Frontier Airlines27477.4%13.1%2.6%

Which month was most reliable for JFK to MIA?

Among qualifying JFK-to-MIA month results, April 2026 had the highest on-time rate: 86.9% of 406 flights. July 2025 was lowest at 58.4% across 397 flights.

MonthFlightsOn time30+ minCancelled
July 202539758.4%26.7%7.1%
August 202537573.9%16.5%1.3%
September 202535979.1%13.9%0.3%
October 202537271.2%19.1%1.1%
November 202540577.8%13.8%2.2%
December 202539669.4%20.7%3.5%
January 202638271.7%14.7%6.8%
February 202633971.4%14.5%6.8%
March 202636276.0%14.1%2.5%
April 202640686.9%7.6%0.2%
May 202640083.2%11.0%1.2%
June 202636078.3%16.1%1.7%

What drove JFK to MIA delay minutes?

Late aircraft was the largest recorded JFK-to-MIA delay category, accounting for 39.6% of 92,722 BTS-attributed delay minutes during July 2025–June 2026.

Airline33.1%
Late aircraft39.6%
National airspace21.7%
Weather5.1%
Security0.5%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.