Charleston (CHS) to Atlanta (ATL): On-Time Performance
Data through July 2026
Charleston (CHS) to Atlanta (ATL) effectively runs on two schedules. In September 2025, 96% of arrivals were on time; in July 2024 that fell to 67% — a 30-point seasonal swing. Across the full period the route averages 88% on-time against a national 78%. Morning departures also hold up better than evening ones (93% vs 77%), which matters most in the rough months.
- On-time
- 88%
- arrived <15 min late
- Avg delay
- 11 min
- completed flights
- Cancelled
- 1.7%
- Flights/day
- 8.8
- last 12 months
- Duration
- 1h 17m
- scheduled
- Distance
- 259 mi
Monthly on-time trend
Best time to fly from CHS to ATL
Aim for departures around 11 a.m. (96% on-time); avoid 6 p.m. departures (76%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 86% | 13 min |
| Tuesday | 91% | 9 min |
| Wednesdaybest | 93% | 4 min |
| Thursday | 89% | 8 min |
| Friday | 86% | 13 min |
| Saturday | 88% | 9 min |
| Sunday | 81% | 17 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft39%
- Airline operations36%
- National airspace system21%
- Weather4%
Frequently asked questions
- How often are flights from CHS to ATL delayed?
- 13% of CHS–ATL flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 11 minutes.
- What is the best time of day to fly from CHS to ATL?
- Departures around 11 a.m. have the best record (96% on-time), while departures around 6 p.m. have the worst (76%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from CHS to ATL?
- The scheduled CHS–ATL flight time averages 1h 17m over 259 miles. Actual arrival times vary — flights on this route land 15+ minutes late 13% of the time.
- How often are CHS to ATL flights cancelled?
- 1.7% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What is the worst month to fly from CHS to ATL?
- July 2024 was the roughest month in this dataset, with only 67% of arrivals on time. The best was September 2025 at 96%. If your dates are flexible, that 30-point gap is worth planning around.
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Based on 6,456 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.