Historical on-time performance
Washington to Charleston
444 miData through May 2026Source: US DOT · BTS
Flights on DCA–CHS arrive on time 67% of the time over the last 12 months.
On-time rate67%arrived within 15 min
p90 delay75 min1 in 10 flights is worse (tail risk)
Cancelled3.9%of scheduled flights
based on 1,596 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Republic AirwaysbestOn-time78%Medianon timep9040 minCancel3.5%Flights372
- PSA AirlinesOn-time66%Medianon timep9075 minCancel4.4%Flights841
- American AirlinesOn-time60%Medianon timep90110 minCancel3.1%Flights383
Why flights run late
Delay causes
- Airline22%
- Weather9%
- Air traffic (NAS)12%
- Late aircraft57%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline21%
- Weather66%
- Air traffic (NAS)13%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 62 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 DCA → 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 — 82% on time.
- Mornings82% on time · p90 25 min · 1,138 flights
- Middays78% on time · p90 40 min · 1,388 flights
- Afternoons71% on time · p90 65 min · 958 flights
- Overnights70% on time · p90 75 min · 738 flights
- Evenings64% on time · p90 90 min · 1,146 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 70% to 78% on time.
- Saturdays78% on time · p90 45 min · 624 flights
- Tuesdays76% on time · p90 45 min · 793 flights
- Sundays74% on time · p90 55 min · 790 flights
- Wednesdays74% on time · p90 45 min · 790 flights
- Thursdays73% on time · p90 50 min · 784 flights
- Mondays70% on time · p90 75 min · 793 flights
- Fridays70% on time · p90 65 min · 794 flights
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