Route Reliability
Columbus → Atlanta
CMH–ATL · 447 miles · John Glenn Columbus International Airport to Hartsfield–Jackson Atlanta International Airport
- 86%
- Arrive within 15 minutes
- 0 min
- Average arrival delay
- 1.7%
- Cancelled
- 3,199
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.Delta Air Lines88%2,703 flights
- 2.Southwest Airlines84%332 flights
- 3.Frontier Airlines53%127 flights
Not enough history to rank: Spirit Airlines (37 flights). We rank airlines only after 100 flights on the route.
What the data says
Morning flights do better here.
CMH–ATL flights departing between 9 AM–12 PM arrived on time 91% of the time, versus 78% between 6–9 PM.
Monday is the weak spot.
CMH–ATL flights arrived on time 93% of the time on Wednesdays. On Mondays: 79%.
Delta Air Lines has a clear lead on this route.
Delta Air Lines arrived on time 88% of the time on this route; Frontier Airlines managed 53%.
Ticking up lately.
CMH–ATL flights arrived on time 87% of the time over the last three months in the data, compared with 83% in the three months before that.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon79%(500 flights)
- Tue88%(420 flights)
- Wed93%(412 flights)
- Thu89%(468 flights)
- Fri86%(487 flights)
- Sat86%(371 flights)
- Sun82%(476 flights)
- 6–9 AM90%(1002 flights)
- 9 AM–12 PM91%(475 flights)
- 12–3 PM83%(750 flights)
- 3–6 PM86%(468 flights)
- 6–9 PM78%(439 flights)
Jun 83% → May 88% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 83% | 298 |
| July 2025 | 82% | 296 |
| August 2025 | 88% | 289 |
| September 2025 | 94% | 276 |
| October 2025 | 89% | 292 |
| November 2025 | 88% | 250 |
| December 2025 | 78% | 250 |
| January 2026 | 84% | 221 |
| February 2026 | 86% | 214 |
| March 2026 | 81% | 238 |
| April 2026 | 92% | 246 |
| May 2026 | 88% | 264 |
Keep nerding
Based on 3,199 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.