Best Time to Fly CHS to ATL: On-Time Stats by Hour & Airline
Charleston AFB/International → Hartsfield-Jackson Atlanta International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 89.5% of Charleston (CHS) to Atlanta (ATL) flights arrived on time (3,221 scheduled flights). That is 11.9 points above the national average of 77.6%.
Delta Air Lines was the only reporting airline with regular flights on this route.
October has been the best month (94% on time) and Sunday the weakest day of the week (82%).
1.8% of flights were cancelled, versus 1.8% nationally.
CHS 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 | 89.6% | 82 min | 1.8% | 3,218 |
| SkyWest Airlines | Limited data | 3 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly CHS to ATL
On-time arrival % by scheduled departure hour (local time), 6,200 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 95.8% | 1.8% | 653 |
| 6am–7am | 93.0% | 1.4% | 726 |
| 7am–8am | 87.9% | 1.7% | 344 |
| 8am–9am | 93.6% | 1.5% | 584 |
| 9am–10am | 93.2% | 4.1% | 169 |
| 10am–11am | 92.3% | 1.1% | 608 |
| 11am–12pm | 95.9% | 1.0% | 99 |
| 12pm–1pm | 89.8% | 1.8% | 572 |
| 1pm–2pm | 88.4% | 0.7% | 140 |
| 2pm–3pm | 85.2% | 1.8% | 565 |
| 3pm–4pm | 82.5% | 0.0% | 229 |
| 4pm–5pm | 84.4% | 0.5% | 381 |
| 5pm–6pm | 77.7% | 2.0% | 349 |
| 6pm–7pm | 78.1% | 1.0% | 416 |
| 7pm–8pm | 78.4% | 1.4% | 221 |
| 8pm–9pm | 84.6% | 0.0% | 144 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on CHS 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) | 90.4% | +0.6 pts | 0.0% | 115 |
| Christmas & New Year (Dec 20 - Jan 3) | 87.9% | -1.9 pts | 0.9% | 233 |
| Summer peak (Jun 15 - Aug 15) | 82.6% | -7.2 pts | 2.0% | 1,123 |
| All other days | 89.8% | — | 1.4% | 4,729 |
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).