Atlanta (ATL) to Columbus (CMH): On-Time Performance
Data through July 2026
When you fly ATL to CMH matters as much as anything else about the booking: the route swung from 94% on-time in October 2024 to just 66% in July 2024. Across the full period the route averages 80% on-time against a national 78%. Morning departures also hold up better than evening ones (87% vs 74%), which matters most in the rough months.
- On-time
- 80%
- arrived <15 min late
- Avg delay
- 13 min
- completed flights
- Cancelled
- 1.2%
- Flights/day
- 8.6
- last 12 months
- Duration
- 1h 32m
- scheduled
- Distance
- 447 mi
Best airline from ATL to CMH
4 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Linesmost reliable | 80% | 13 min | 1.2% | 5,449 |
| Southwest Airlines | 80% | 12 min | 0.5% | 979 |
| Spirit Airlines | 69% | 22 min | 1.1% | 90 |
| Frontier Airlines | 57% | 29 min | 3.2% | 155 |
Monthly on-time trend
Best time to fly from ATL to CMH
Aim for departures around 7 a.m. (93% on-time); avoid 9 p.m. departures (64%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 76% | 15 min |
| Tuesday | 83% | 11 min |
| Wednesdaybest | 87% | 7 min |
| Thursday | 82% | 10 min |
| Friday | 76% | 15 min |
| Saturday | 79% | 13 min |
| Sunday | 74% | 18 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft33%
- Airline operations48%
- National airspace system14%
- Weather5%
Frequently asked questions
- How often are flights from ATL to CMH delayed?
- 21% of ATL–CMH flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 13 minutes.
- Which airline is most reliable from ATL to CMH?
- Delta Air Lines has the best on-time record on this route at 80%, based on 5,449 flights. 4 airlines flew ATL–CMH frequently enough to compare in this period.
- What is the best time of day to fly from ATL to CMH?
- Departures around 7 a.m. have the best record (93% on-time), while departures around 9 p.m. have the worst (64%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from ATL to CMH?
- The scheduled ATL–CMH flight time averages 1h 32m over 447 miles. Actual arrival times vary — flights on this route land 15+ minutes late 21% of the time.
- How often are ATL to CMH flights cancelled?
- 1.2% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from ATL to CMH?
- July 2024 was the roughest month in this dataset, with only 66% of arrivals on time. The best was October 2024 at 94%. If your dates are flexible, that 28-point gap is worth planning around.
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Based on 6,675 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.