ATL to CMH flight delays & on-time performance
Nonstop flights from Hartsfield Jackson Atlanta International Airport to John Glenn Columbus International Airport · 447 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at ATL or CMH right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Atlanta (ATL) to Columbus (CMH) arrived on time 80% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 1.5% were cancelled, and 6% arrived an hour or more late.
- Delta Air Lines was the most punctual airline here (82% on time); Southwest Airlines was the least (76%).
- Departures scheduled around 11am did best (92% on time); around 5pm did worst (69%).
- Wednesday was the most reliable day to fly (89% on time) and Sunday the least (74%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (46%).
Which airline is most on time from ATL to CMH?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Delta Air Lines | 82% | 1.5% | 11 min | 5.3% | 2,694 |
| Southwest Airlines | 76% | 0.6% | 14 min | 6.0% | 322 |
| Frontier Airlines | 61% | 2.9% | 27 min | 14.1% | 139 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am92%197 flights
- 8am86%156 flights
- 9am78%95 flights
- 10am86%270 flights
- 11am92%146 flights
- 12pm81%133 flights
- 1pm87%198 flights
- 2pm86%283 flights
- 3pm75%366 flights
- 4pm76%208 flights
- 5pm69%182 flights
- 6pm76%122 flights
- 7pm70%222 flights
- 8pm75%135 flights
- 9pm70%76 flights
- 10pm79%310 flights
- 11pm79%56 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday76%1.4% cancelled
- Tuesday84%0.7% cancelled
- Wednesday89%0.5% cancelled
- Thursday84%0.2% cancelled
- Friday74%1.4% cancelled
- Saturday83%2.4% cancelled
- Sunday74%3.5% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)46%
- Late-arriving aircraft36%
- Air traffic control & airport congestion12%
- Extreme weather6%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)72%
- Extreme weather28%
- Air traffic control & airport congestion0%
- Security0%
ATL to CMH: common questions
- How often are ATL to CMH flights on time?
- 80% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Atlanta to Columbus cancelled?
- 1.5% of scheduled flights were cancelled (46 of 3,155).
- How long are typical delays?
- Across all flights the average arrival delay was 12 min (early arrivals count as zero). Flights that were late arrived 56 min behind schedule on average, and 5.7% of flights were an hour or more late.
- How long is taxi time at ATL?
- Flights on this route spent 16 min taxiing from the gate to takeoff on average.
Related routes
Return trip: CMH to ATL — 85% on time
More flights from Atlanta
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: ATL → CMH, nonstop flights by US airlines that report to the DOT. How we calculate this.