Airport Reliability
HHH · Hilton Head
Hilton Head, SC (HHH)
- 81%
- Departures within 15 minutes
- 12 min
- Average departure delay
- 84%
- Arrivals within 15 minutes
- 1.9%
- Departures cancelled
Based on 2,339 departures and 2,339 arrivals. Data through May 2026.
What the data says
Morning flights do better here.
Departures from HHH departing between 9 AM–12 PM arrived on time 88% of the time, versus 77% between 3–6 PM.
Saturday is the weak spot.
Departures from HHH arrived on time 88% of the time on Tuesdays. On Saturdays: 75%.
When HHH gets messy
- 9 AM–12 PM88%(434 flights)
- 12–3 PM83%(906 flights)
- 3–6 PM77%(737 flights)
- 6–9 PM85%(187 flights)
- Mon87%(307 flights)
- Tue88%(308 flights)
- Wed82%(313 flights)
- Thu79%(310 flights)
- Fri85%(310 flights)
- Sat75%(388 flights)
- Sun82%(328 flights)
81%
May
Jun 78% → May 81% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 78% | 274 |
| July 2025 | 71% | 256 |
| August 2025 | 80% | 258 |
| September 2025 | 92% | 216 |
| October 2025 | 84% | 205 |
| November 2025 | 92% | 117 |
| December 2025 | 85% | 105 |
| January 2026 | 86% | 59 |
| February 2026 | 85% | 86 |
| March 2026 | 85% | 127 |
| April 2026 | 84% | 260 |
| May 2026 | 81% | 301 |
Airlines departing HHH
Busiest routes from HHH
Based on 2,339 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.