According to PlainFlights' airport traffic ranking (BTS On-Time Performance total flights), Hilton Head, SC (HHH) ranks #186 of 382 tracked US airports by total flights (most flights = #1). Hilton Head, SC posts above-median on-time performance among the 382 tracked U.S. airports, as a mid-size U.S. airport.
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HHH on-time rate vs. the national average
Ahead of the U.S. average across all 382 tracked airports.
Delay Cause Breakdown
Top delay cause: Late Aircraft.
Total delay minutes: 195,887.
Late Aircraft41.7% (81,612 min)
Carrier30.9% (60,606 min)
NAS (National Aviation System)19.3% (37,890 min)
Weather7.8% (15,373 min)
Security0.2% (406 min)
HHH - seasonal on-time pattern
Best: October (94.2%) · worst: July (86.8%)
HHH - on-time rate by year
2020–2025, year-over-year trend.
HHH - taxi-out and taxi-in (monthly)
Average taxi-out 17.7 min · taxi-in 7.4 min over the last 24 reported months (U.S. airport mean taxi-out ≈ 16.4 min).
HHH's average taxi-out (17.7 min) sits near the recent U.S. airport mean (~16.4 min). Month-to-month, it swings from 15.3 min (February 2025) to 20.7 min (July 2025).
Two PlainFlights-derived comparison paths for Hilton Head, SC, both outside South Carolina so the neighborhoods are not same-state geography. Axes stay disjoint: volume peers exclude the on-time peer set. Same-state compare stays below.
The standout signal at Hilton Head, SC is the delay mix: Late Aircraft owns 41.7% of 195,887 delay minutes across 27,234 BTS flights. The on-time headline is 83.5% (4.5 pts above the 79% national average), with 4,499 delayed and 362 cancelled (1.33%).
Delay minutes concentrate in Late Aircraft (41.7% late-aircraft, 30.9% carrier, 19.3% NAS, 7.8% weather, 0.2% security). Mid-volume books still show a clear delay fingerprint rather than a weather-only story.
On the multi-year calendar, HHH is strongest in October (94.2% on-time) and weakest in July (86.8%), a 7.4-point swing. Volume peaks in July (~576 flights/month). The busiest connecting route is to CLT (Charlotte) at 83.7% on-time. Field definitions: on-time performance explained.
Hilton Head, SC vs. the national on-time distribution
On-time rate among all 382 tracked U.S. airports
83.5%Top 48%higher than 52% of 382 airports
Hilton Head, SC
60%95%
U.S. airports by on-time rate, bucketed by value
Each bar is a band; taller bars hold more airports. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data (2020–2025).
Statistics reflect cumulative performance across all available reporting periods. On-time rates exclude cancelled and diverted flights.
HHH's on-time book is mid-pack; month and delay-cause mix move more than the headline rate.
Check the busiest route from HHH before you book a connection. See top routes →
Travel in October rather than July if your dates are flexible. Seasonal patterns →
Gate-to-wheels taxi-out averages 17.7 min here; check the monthly series before a tight connection. Taxi times →
On-time rate reflects the BTS historical average across all reporting carriers at this airport, not any single flight or airline.
Frequently Asked Questions
What is Hilton Head, SC's on-time rate?
Hilton Head, SC (HHH) has a 83.5% on-time rate across 27,234 BTS-tracked flights (2020-2025), 4.5 pts above the 79% national flight-weighted average; that places it in roughly the above-median on-time performance.
How does HHH rank among U.S. airports by traffic volume?
Hilton Head, SC ranks #186 of 382 tracked US airports by total BTS flights (most flights = #1), making it a mid-size U.S. airport.
What's the most common cause of delays at Hilton Head, SC?
Late Aircraft is the leading delay cause at HHH, accounting for 41.7% of delay minutes. The full breakdown: 41.7% late-aircraft, 30.9% carrier, 19.3% NAS/air-traffic-control, 7.8% weather, and 0.2% security.
When is the best time to fly through Hilton Head, SC?
October is historically HHH's strongest month at 94.2% on-time, while July is the weakest at 86.8%, a 7.4-point swing across the BTS historical record.
Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights