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

Jacksonville, FL (JAX) to Miami, FL (MIA) flight delay odds

79.6% of 1,525 official scheduled JAX-to-MIA flights arrived on time; 12.6% arrived at least 30 minutes late and 0.9% 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 SIGNALGenerally reliable
79.6%arrived on time
12.6%30+ min late
0.9%cancelled
1,525scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late7.3%all scheduled flights
120+ minutes late2.6%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+8.1 mincompleted flights

Which departure time was most reliable for JAX to MIA?

Among qualifying JAX-to-MIA departure window results, Early morning had the highest on-time rate: 89.0% of 619 flights. Evening was lowest at 65.7% across 469 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning61989.0%7.3%0.5%
Late morning34884.8%7.5%0.0%
Afternoon8967.4%19.1%1.1%
Evening46965.7%22.2%2.1%

Which weekday was most reliable for JAX to MIA?

Among qualifying JAX-to-MIA weekday results, Thursday had the highest on-time rate: 82.6% of 213 flights. Sunday was lowest at 71.8% across 216 flights.

DayFlightsOn time30+ minCancelled
Monday22280.6%10.8%3.6%
Tuesday21978.5%15.1%0.5%
Wednesday20981.8%11.5%0.5%
Thursday21382.6%8.9%0.0%
Friday21980.4%11.4%0.5%
Saturday22781.5%11.0%0.4%
Sunday21671.8%19.4%0.9%

Which airline was most reliable for JAX to MIA?

Among qualifying JAX-to-MIA airline results, Envoy Air had the highest on-time rate: 79.9% of 702 flights. American Airlines was lowest at 79.3% across 803 flights.

AirlineFlightsOn time30+ minCancelled
American Airlines80379.3%13.8%1.0%
Envoy Air70279.9%11.1%0.9%
Republic Airways2080.0%15.0%0.0%

Which month was most reliable for JAX to MIA?

Among qualifying JAX-to-MIA month results, April 2026 had the highest on-time rate: 86.6% of 112 flights. July 2025 was lowest at 71.3% across 157 flights.

MonthFlightsOn time30+ minCancelled
July 202515771.3%20.4%2.5%
August 202513080.0%16.2%0.0%
September 202511882.2%12.7%0.0%
October 202514075.0%15.7%0.0%
November 202514885.1%6.1%4.1%
December 202513585.2%7.4%0.0%
January 202612976.0%15.5%1.6%
February 202611379.6%10.6%0.0%
March 202610076.0%13.0%2.0%
April 202611286.6%11.6%0.0%
May 202612382.9%8.1%0.0%
June 202612076.7%12.5%0.0%

What drove JAX to MIA delay minutes?

Airline was the largest recorded JAX-to-MIA delay category, accounting for 43.6% of 21,918 BTS-attributed delay minutes during July 2025–June 2026.

Airline43.6%
Late aircraft40.0%
National airspace12.8%
Weather3.6%
Security0.0%
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.