Best Time to Fly CHA to ATL: On-Time Stats by Hour & Airline
Lovell Field → Hartsfield-Jackson Atlanta International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 85.3% of Chattanooga (CHA) to Atlanta (ATL) flights arrived on time (1,336 scheduled flights). That is 7.7 points above the national average of 77.6%.
Delta Air Lines was the most punctual of the 2 airlines on the route at 86.7%, while SkyWest Airlines trailed at 48.9%.
September has been the best month (92% on time) and Sunday the weakest day of the week (80%).
2.4% of flights were cancelled, versus 1.8% nationally.
CHA to ATL on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Lines | 86.7% | 85 min | 2.2% | 1,288 |
| SkyWest Airlines | 48.9% | 74 min | 6.2% | 48 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly CHA to ATL
On-time arrival % by scheduled departure hour (local time), 3,345 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 92.3% | 1.5% | 610 |
| 6am–7am | 92.0% | 1.7% | 240 |
| 7am–8am | 88.4% | 1.0% | 288 |
| 8am–9am | Limited data | 25 | |
| 9am–10am | 95.6% | 0.0% | 45 |
| 10am–11am | 86.7% | 1.5% | 268 |
| 11am–12pm | 88.8% | 1.4% | 209 |
| 12pm–1pm | 91.1% | 1.1% | 91 |
| 1pm–2pm | 82.2% | 0.8% | 266 |
| 2pm–3pm | 72.6% | 2.6% | 116 |
| 3pm–4pm | 91.7% | 0.5% | 205 |
| 4pm–5pm | 76.8% | 1.7% | 352 |
| 5pm–6pm | 87.7% | 0.7% | 139 |
| 6pm–7pm | 80.4% | 2.2% | 271 |
| 7pm–8pm | 64.6% | 2.6% | 116 |
| 8pm–9pm | 71.0% | 3.9% | 104 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on CHA to ATL
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 83.1% | -4.3 pts | 0.0% | 83 |
| Christmas & New Year (Dec 20 - Jan 3) | 79.8% | -7.6 pts | 0.0% | 79 |
| Summer peak (Jun 15 - Aug 15) | 78.6% | -8.8 pts | 2.8% | 651 |
| All other days | 87.4% | — | 1.3% | 2,532 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).