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

Columbus, OH (CMH) to Miami, FL (MIA) flight delay odds

81.9% of 1,121 official scheduled CMH-to-MIA flights arrived on time; 10.7% arrived at least 30 minutes late and 0.4% 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 SIGNALLower disruption
81.9%arrived on time
10.7%30+ min late
0.4%cancelled
1,121scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.9%all scheduled flights
120+ minutes late2.4%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+2.0 mincompleted flights

Which departure time was most reliable for CMH to MIA?

Among qualifying CMH-to-MIA departure window results, Early morning had the highest on-time rate: 88.4% of 586 flights. Evening was lowest at 71.6% across 320 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning58688.4%5.8%0.2%
Late morning13881.9%11.6%1.4%
Afternoon7775.3%15.6%1.3%
Evening32071.6%18.1%0.0%

Which weekday was most reliable for CMH to MIA?

Among qualifying CMH-to-MIA weekday results, Tuesday had the highest on-time rate: 84.8% of 138 flights. Sunday was lowest at 79.1% across 172 flights.

DayFlightsOn time30+ minCancelled
Monday16981.7%11.2%1.2%
Tuesday13884.8%8.7%0.0%
Wednesday13881.9%10.9%0.0%
Thursday16281.5%7.4%0.0%
Friday16784.4%9.6%0.0%
Saturday17580.6%12.0%0.0%
Sunday17279.1%14.5%1.2%

Which airline was most reliable for CMH to MIA?

Among qualifying CMH-to-MIA airline results, American Airlines had the highest on-time rate: 85.4% of 41 flights. Southwest Airlines was lowest at 81.2% across 160 flights.

AirlineFlightsOn time30+ minCancelled
Envoy Air91881.8%10.8%0.1%
Southwest Airlines16081.2%10.6%1.2%
American Airlines4185.4%9.8%2.4%
Republic Airways2100.0%0.0%0.0%

Which month was most reliable for CMH to MIA?

Among qualifying CMH-to-MIA month results, May 2026 had the highest on-time rate: 93.8% of 96 flights. December 2025 was lowest at 69.4% across 108 flights.

MonthFlightsOn time30+ minCancelled
July 20258270.7%18.3%0.0%
August 20256674.2%13.6%0.0%
September 20256090.0%3.3%0.0%
October 20256279.0%11.3%0.0%
November 20259287.0%13.0%0.0%
December 202510869.4%19.4%0.0%
January 202611179.3%14.4%1.8%
February 202610385.4%9.7%0.0%
March 202613978.4%10.1%1.4%
April 20269285.9%7.6%0.0%
May 20269693.8%2.1%0.0%
June 202611090.0%4.5%0.0%

What drove CMH to MIA delay minutes?

Late aircraft was the largest recorded CMH-to-MIA delay category, accounting for 44.5% of 13,200 BTS-attributed delay minutes during July 2025–June 2026.

Airline26.0%
Late aircraft44.5%
National airspace23.4%
Weather5.7%
Security0.3%
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.