Airport reliability
Hilton Head (HHH) on-time performance
How reliably flights leave Hilton Head, SC (HHH) and reach their destinations, by airline, departure hour and month, September 2025 to August 2026.
Hilton Head, SC2,405 departures in 12 months
- Departures on time
- 79.2% U.S. average 75.6%
- Cancelled
- 1.9% U.S. average 1.9%
- 60+ minutes late
- 8.5% U.S. average 8.1%
- Scheduled departures
- 2,405 12 months
What this means
HHH departures beat the U.S. average.
- 79.2% of the 2,405 scheduled departures from Hilton Head (HHH) arrived at their destination on time, 3.6 points higher than the U.S. average of 75.6%.
- 1.9% of departures were cancelled (U.S. average 1.9%), and 8.5% arrived an hour or more late.
- Flights arriving at HHH were on time 82.3% of the time.
- Among airlines with at least 300 departures, Envoy Air was the most punctual from HHH (84.8%) and Republic Airways the least (71.7%).
- Over the last 3 years, November was the most reliable month for departures from HHH (86.4% on time) and July the least reliable (70.0%).
- Cancellations peaked in January, when 11.2% of flights were cancelled.
- Flights scheduled to depart 11 am to noon were the most punctual (88.7% on time); flights scheduled to depart 4 pm to 5 pm were the least (63.4%).
Airlines at HHH
Ranked by on-time arrival
| Airline | On time | Cancelled | 60+ min late | Avg delay when late | Departures |
|---|---|---|---|---|---|
| Envoy AirSold as American Eagle | 84.8% | 1.5% | 6.1% | 102 min | 1,380 |
| Republic AirwaysSold as American Eagle, Delta Connection, United Express | 71.7% | 2.4% | 11.7% | 115 min | 1,025 |
Tap a heading to sort.
On-time rate by departure hour
Share of scheduled flights on time HHH average 79.2%
Show as table
| Period | On time | Flights |
|---|---|---|
| Departing 8 am to 9 am | Insufficient sample | 1 |
| Departing 10 am to 11 am | 82.4% | 74 |
| Departing 11 am to noon | 88.7% | 371 |
| Departing noon to 1 pm | 84.5% | 414 |
| Departing 1 pm to 2 pm | 77.0% | 209 |
| Departing 2 pm to 3 pm | 77.3% | 326 |
| Departing 3 pm to 4 pm | 75.6% | 324 |
| Departing 4 pm to 5 pm | 63.4% | 350 |
| Departing 5 pm to 6 pm | 83.7% | 178 |
| Departing 6 pm to 7 pm | 88.5% | 131 |
| Departing 7 pm to 8 pm | Insufficient sample | 27 |
Best and worst months at HHH
Share of scheduled flights on time 12-month average 79.2%
Show as table
| Period | On time | Flights |
|---|---|---|
| January | 75.1% | 197 |
| February | 81.3% | 219 |
| March | 82.5% | 348 |
| April | 82.1% | 654 |
| May | 70.5% | 796 |
| June | 75.4% | 814 |
| July | 70.0% | 816 |
| August | 75.7% | 786 |
| September | 80.3% | 610 |
| October | 82.8% | 536 |
| November | 86.4% | 273 |
| December | 77.2% | 246 |
Month by month, last 12 months
Share of scheduled flights on time U.S. average 75.6%
Show as table
| Period | On time | Flights |
|---|---|---|
| Sep 2025 | 90.0% | 220 |
| Oct 2025 | 84.4% | 205 |
| Nov 2025 | 88.3% | 120 |
| Dec 2025 | 81.5% | 108 |
| Jan 2026 | 76.1% | 67 |
| Feb 2026 | 81.1% | 90 |
| Mar 2026 | 79.9% | 134 |
| Apr 2026 | 81.7% | 263 |
| May 2026 | 77.5% | 311 |
| Jun 2026 | 73.1% | 294 |
| Jul 2026 | 73.1% | 301 |
| Aug 2026 | 74.7% | 292 |
Busiest routes from HHH
| To | On time | Cancelled | Airlines | Flights |
|---|---|---|---|---|
| Charlotte (CLT) | 87.0% | 1.6% | 1 | 1,166 |
| Washington (DCA) | 77.3% | 2.1% | 2 | 330 |
| Chicago (ORD) | 65.8% | 1.8% | 2 | 272 |
| Newark (EWR) | 77.3% | 3.3% | 1 | 211 |
| Atlanta (ATL) | 83.8% | 0.0% | 1 | 197 |
| New York (LGA) | 56.9% | 3.0% | 1 | 197 |
Sources & data dates
- Source
- U.S. DOT Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987-present)
- Period
- September 2025 to August 2026 (12 months); month-of-year patterns September 2023 to August 2026
- Data through
- August 2026
- Processed
- 2026-11-03
- Scope
- Scheduled nonstop domestic departures from Hilton Head, SC (HHH) by airlines that report to the DOT.
- Method
- Rates use all scheduled flights as the denominator; cancelled and diverted flights count as not on time. Figures based on fewer than 50 scheduled flights are suppressed. Full methodology.