Historical on-time performance
Washington to Charleston
444 miData through Dec 2025Source: US DOT · BTS
Flights on DCA–CHS arrive on time 66% of the time over the last 12 months.
On-time rate66%arrived within 15 min
p90 delay65 min1 in 10 flights is worse (tail risk)
Cancelled5.5%of scheduled flights
based on 1,812 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Republic AirwaysbestOn-time73%Medianon timep9035 minCancel4.1%Flights439
- PSA AirlinesOn-time65%Medianon timep9065 minCancel7.3%Flights939
- American AirlinesOn-time62%Medianon timep9090 minCancel2.8%Flights434
Why flights run late
Delay causes
- Airline22%
- Weather6%
- Air traffic (NAS)14%
- Late aircraft57%
- 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 DCA → CHS
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 83% on time.
- Mornings83% on time · p90 25 min · 1,132 flights
- Middays79% on time · p90 30 min · 1,383 flights
- Afternoons74% on time · p90 55 min · 1,024 flights
- Overnights72% on time · p90 70 min · 813 flights
- Evenings67% on time · p90 75 min · 1,019 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 72% to 78% on time.
- Saturdays78% on time · p90 40 min · 628 flights
- Tuesdays78% on time · p90 40 min · 797 flights
- Sundays76% on time · p90 55 min · 789 flights
- Thursdays76% on time · p90 40 min · 779 flights
- Wednesdays76% on time · p90 35 min · 794 flights
- Mondays75% on time · p90 60 min · 795 flights
- Fridays72% on time · p90 60 min · 789 flights
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