Hilton Head Airport (HHH): Delays & On-Time Performance
Data through May 2026
Hilton Head Airport (HHH) is a tale of two seasons: departures ran 90% on-time in September 2025 but sank to 73% in May 2025. Across the year it averages 80% against a national 78%, over roughly 6 departures a day to 8 destinations.
- Departures on-time
- 80%
- left <15 min late
- Avg dep delay
- 17 min
- Arrivals on-time
- 82%
- Cancelled
- 2.3%
- Destinations
- 8
- nonstop
- Airlines
- 2
Monthly on-time trend
Best time of day to depart from HHH
Busiest routes from HHH
| Route | Flights/12mo | On-time | Avg delay |
|---|---|---|---|
| HHH → CLT | 1,160 | 82% | 12 min |
| HHH → DCA | 343 | 82% | 16 min |
| HHH → EWR | 211 | 77% | 23 min |
| HHH → ATL | 196 | 87% | 11 min |
| HHH → LGA | 196 | 65% | 41 min |
| HHH → PHL | 110 | 71% | 31 min |
| HHH → ORD | 108 | 67% | 25 min |
Airline performance at HHH
| Airline | On-time departures | Avg delay | Flights |
|---|---|---|---|
| Envoy Air | 82% | 12 min | 2,474 |
| Republic Airways | 78% | 24 min | 1,812 |
Frequently asked questions
- How often are flights delayed at HHH?
- 20% of departures from Hilton Head Airport left 15+ minutes late between 2024-06 and 2026-05, with an average departure delay of 17 minutes. The national on-time average over the same period was 78%.
- What is the best time of day to depart from HHH?
- Flights scheduled around 10 a.m. depart on time 87% of the time at HHH, versus 67% around 4 p.m.. Booking before noon is the usual rule of thumb here.
- What is the worst month for delays at HHH?
- In this dataset, May 2025 was the weakest month at HHH, with 73% of departures on time.
- How often are flights cancelled at HHH?
- 2.3% of scheduled departures from HHH were cancelled in this period, compared with a national rate of 1.6%.
Popular route pages from this airport
Based on 4,286 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.