Historical on-time performance
Dallas to Charleston
977 miData through Dec 2025Source: US DOT · BTS
Flights on DAL–CHS arrive on time 69% of the time over the last 12 months.
On-time rate69%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled1.2%of scheduled flights
based on 337 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time69%Medianon timep9050 minCancel1.2%Flights337
Why flights run late
Delay causes
- Airline32%
- Weather5%
- Air traffic (NAS)27%
- Late aircraft36%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly DAL → CHS
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Middays are the most reliable time of day to fly this route — 82% on time.
- Middays82% on time · p90 30 min · 468 flights
- Afternoons69% on time · p90 45 min · 405 flights
- Evenings64% on time · p90 110 min · 85 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 62% to 84% on time.
- Saturdays84% on time · p90 30 min · 156 flights · limited
- Mondays82% on time · p90 30 min · 139 flights · limited
- Tuesdays78% on time · p90 30 min · 139 flights · limited
- Sundays76% on time · p90 45 min · 157 flights · limited
- Wednesdays72% on time · p90 40 min · 139 flights · limited
- Fridays70% on time · p90 55 min · 139 flights · limited
- Thursdays62% on time · p90 45 min · 138 flights · limited
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