Historical on-time performance
Atlanta to Charleston
259 miData through May 2026Source: US DOT · BTS
Flights on ATL–CHS arrive on time 81% of the time over the last 12 months.
On-time rate81%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled1.8%of scheduled flights
based on 3,206 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Delta Air LinesOn-time81%Medianon timep9030 minCancel1.8%Flights3,206
Why flights run late
Delay causes
- Airline51%
- Weather5%
- Air traffic (NAS)18%
- Late aircraft26%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline64%
- Weather36%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 58 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly ATL → CHS
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 90% on time.
- Mornings90% on time · p90 10 min · 1,153 flights
- Middays86% on time · p90 20 min · 2,254 flights
- Afternoons80% on time · p90 30 min · 1,785 flights
- Evenings79% on time · p90 35 min · 1,534 flights
- Overnights74% on time · p90 45 min · 2,119 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 76% to 87% on time.
- Tuesdays87% on time · p90 20 min · 1,199 flights
- Wednesdays86% on time · p90 20 min · 1,203 flights
- Thursdays83% on time · p90 25 min · 1,328 flights
- Saturdays81% on time · p90 25 min · 1,137 flights
- Mondays80% on time · p90 30 min · 1,332 flights
- Fridays77% on time · p90 35 min · 1,334 flights
- Sundays76% on time · p90 45 min · 1,312 flights
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