Historical on-time performance
Dallas to Charleston
977 miData through May 2026Source: US DOT · BTS
Flights on DAL–CHS arrive on time 68% of the time over the last 12 months.
On-time rate68%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled0.6%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-time68%Medianon timep9050 minCancel0.6%Flights337
Why flights run late
Delay causes
- Airline35%
- Weather1%
- Air traffic (NAS)23%
- Late aircraft42%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather100%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 2 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 DAL → CHS
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Middays are the most reliable time of day to fly this route — 80% on time.
- Middays80% on time · p90 30 min · 459 flights
- Afternoons69% on time · p90 45 min · 458 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 62% to 82% on time.
- Saturdays82% on time · p90 35 min · 157 flights · limited
- Mondays80% on time · p90 40 min · 147 flights · limited
- Tuesdays77% on time · p90 35 min · 147 flights · limited
- Wednesdays76% on time · p90 35 min · 147 flights · limited
- Sundays72% on time · p90 55 min · 157 flights · limited
- Fridays71% on time · p90 50 min · 149 flights · limited
- Thursdays62% on time · p90 50 min · 148 flights · limited
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