Best Time to Fly ATL to CHS: On-Time Stats by Hour & Airline
Hartsfield-Jackson Atlanta International → Charleston AFB/International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 83.2% of Atlanta (ATL) to Charleston (CHS) flights arrived on time (3,221 scheduled flights). That is 5.6 points above the national average of 77.6%.
Delta Air Lines was the only reporting airline with regular flights on this route.
September has been the best month (91% on time) and Sunday the weakest day of the week (76%).
1.7% of flights were cancelled, versus 1.8% nationally.
ATL to CHS 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 | 83.2% | 58 min | 1.7% | 3,218 |
| SkyWest Airlines | Limited data | 3 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly ATL to CHS
On-time arrival % by scheduled departure hour (local time), 6,201 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | 93.8% | 2.0% | 99 |
| 8am–9am | 92.5% | 1.0% | 582 |
| 9am–10am | 94.0% | 1.0% | 101 |
| 10am–11am | 89.3% | 1.4% | 696 |
| 11am–12pm | Limited data | 12 | |
| 12pm–1pm | 87.0% | 1.6% | 708 |
| 1pm–2pm | 90.6% | 0.0% | 85 |
| 2pm–3pm | 83.2% | 1.0% | 596 |
| 3pm–4pm | 71.1% | 0.0% | 159 |
| 4pm–5pm | 79.5% | 1.8% | 556 |
| 5pm–6pm | 74.8% | 0.9% | 348 |
| 6pm–7pm | 84.4% | 1.2% | 259 |
| 7pm–8pm | 79.5% | 2.4% | 457 |
| 8pm–9pm | 70.9% | 1.4% | 416 |
| 9pm–10pm | 77.0% | 1.4% | 352 |
| 10pm–11pm | 78.6% | 2.1% | 674 |
| 11pm–12am | 74.0% | 1.0% | 101 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on ATL to CHS
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) | 83.5% | -1.3 pts | 0.0% | 115 |
| Christmas & New Year (Dec 20 - Jan 3) | 82.7% | -2.1 pts | 0.9% | 233 |
| Summer peak (Jun 15 - Aug 15) | 72.5% | -12.3 pts | 1.8% | 1,122 |
| All other days | 84.8% | — | 1.4% | 4,731 |
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).