Historical on-time performance
Hilton Head Island to Washington
Flights on HHH–DCA arrive on time 79% of the time over the last 12 months.
based on 158 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Not enough comparable data to name a most-on-time carrier — low-data carriers aren't ranked.
- Envoy AirOn-time85%Medianon timep9020 minCancel1.6%Flights62
- Republic AirwaysOn-time75%Medianon timep9040 minCancel4.2%Flights96
Why flights run late
Delay causes
- Airline34%
- Weather5%
- Air traffic (NAS)16%
- Late aircraft45%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather40%
- Air traffic (NAS)60%
- Security0%
Most cancellations here are attributed to Air traffic (NAS). Shares are among 5 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 HHH → DCA
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 — 86% on time.
- Middays86% on time · p90 20 min · 650 flights
- Afternoons65% on time · p90 105 min · 138 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 77% to 89% on time.
- Tuesdays89% on time · p90 5 min · 105 flights · limited
- Sundays84% on time · p90 20 min · 111 flights · limited
- Fridays84% on time · p90 20 min · 111 flights · limited
- Mondays83% on time · p90 30 min · 109 flights · limited
- Wednesdays82% on time · p90 45 min · 104 flights · limited
- Thursdays80% on time · p90 25 min · 111 flights · limited
- Saturdays77% on time · p90 70 min · 158 flights · limited
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