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

Columbus, OH (CMH) to Atlanta, GA (ATL) flight delay odds

84.4% of 3,160 official scheduled CMH-to-ATL flights arrived on time; 8.7% arrived at least 30 minutes late and 1.5% 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
84.4%arrived on time
8.7%30+ min late
1.5%cancelled
3,160scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late5.4%all scheduled flights
120+ minutes late2.7%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival-0.1 mincompleted flights

Which departure time was most reliable for CMH to ATL?

Among qualifying CMH-to-ATL departure window results, Late morning had the highest on-time rate: 88.4% of 482 flights. Evening was lowest at 77.2% across 562 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning1,00188.2%6.4%1.7%
Late morning48288.4%5.2%1.9%
Afternoon1,11582.9%9.5%1.2%
Evening56277.2%14.4%1.6%

Which weekday was most reliable for CMH to ATL?

Among qualifying CMH-to-ATL weekday results, Wednesday had the highest on-time rate: 92.9% of 410 flights. Sunday was lowest at 77.7% across 480 flights.

DayFlightsOn time30+ minCancelled
Monday49379.5%12.6%0.8%
Tuesday43986.6%7.5%1.6%
Wednesday41092.9%4.9%0.2%
Thursday46788.9%5.4%0.2%
Friday49083.3%10.0%1.8%
Saturday38183.5%8.9%2.4%
Sunday48077.7%11.0%3.5%

Which airline was most reliable for CMH to ATL?

Among qualifying CMH-to-ATL airline results, Delta Air Lines had the highest on-time rate: 86.5% of 2,693 flights. Frontier Airlines was lowest at 50.0% across 134 flights.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines2,69386.5%7.6%1.6%
Southwest Airlines32681.0%8.6%0.9%
Frontier Airlines13450.0%32.1%2.2%
Spirit Airlines785.7%14.3%0.0%

Which month was most reliable for CMH to ATL?

Among qualifying CMH-to-ATL month results, September 2025 had the highest on-time rate: 93.1% of 277 flights. December 2025 was lowest at 77.5% across 253 flights.

MonthFlightsOn time30+ minCancelled
July 202529980.6%11.7%0.3%
August 202529685.1%8.8%2.0%
September 202527793.1%4.3%0.0%
October 202529487.4%7.1%0.3%
November 202525486.2%7.5%1.2%
December 202525377.5%12.3%1.2%
January 202623378.1%9.9%5.2%
February 202621884.4%7.8%1.8%
March 202624777.7%13.8%3.2%
April 202624991.2%3.2%0.8%
May 202627085.6%8.9%1.9%
June 202627084.4%9.6%1.1%

What drove CMH to ATL delay minutes?

Airline was the largest recorded CMH-to-ATL delay category, accounting for 39.6% of 35,768 BTS-attributed delay minutes during July 2025–June 2026.

Airline39.6%
Late aircraft37.2%
National airspace20.5%
Weather2.6%
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.