Hilton Head Airport in May 2025

70.0%departed on time

BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.

In May 2025, reporting carriers scheduled 253 domestic departures from Hilton Head Airport (HHH). 70.0% left less than 15 minutes late and 70.0% reached their destination on time; 4.0% were cancelled.

Nationally that month, 76.7% of flights departed on time and 75.4% arrived on time, so HHH departures were 6.7 points below the national departure figure.

A year earlier, in May 2024, the airport had 232 departures with 62.1% leaving on time: a change of +7.9 points, with flights up 9%.

Flights arriving at HHH that month were on time 77.5% of the time (253 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, national aviation system 48%, late-arriving aircraft 37% and extreme weather 8%.

On time 70.0%
Arrived 15+ minutes late 25.3%
Cancelled 4.0%
Diverted 0.8%

Every scheduled departure from HHH in May 2025, judged by arrival at the destination.

May 2025 against a year earlier, the airport's year and the nation

Measure	May 2025	May 2024	HHH, 12 months to Jul 2026	All reported flights, May 2025
Departed on time	70.0%	62.1%	79.6%	76.7%
Arrived on time	70.0%	61.6%	79.7%	75.4%
Cancelled	4.0%	1.3%	1.7%	1.0%
Average departure delay (late minutes only)	21.4 min	35.1 min	20.8 min	17.5 min
Scheduled departures a day	8	8	7	20,188
Scheduled departures	253	232	2,373	605,648

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
YX Republic Airline	129	51%	63.6%	20.2 min	7.0%
MQ Envoy Air	124	49%	76.6%	6.1 min	0.8%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
HHH–CLT	Hilton Head to Charlotte	124	76.6%	6.1 min	0.8%
HHH–ATL	Hilton Head to Atlanta	31	90.3%	-3.1 min	0.0%
HHH–DCA	Hilton Head to Washington	31	74.2%	3.4 min	3.2%
HHH–EWR	Hilton Head to Newark	31	29.0%	80.7 min	22.6%
HHH–LGA	Hilton Head to New York	31	58.1%	15.4 min	3.2%
HHH–ORD	Hilton Head to Chicago	5	80.0%	2.0 min	0.0%

By scheduled departure hour

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), May 2025.

Delay causes

BTS cause category	Share of delay minutes	National, May 2025	Minutes
Air carrier	6.1%	29.3%	299
Late-arriving aircraft	37.3%	37.8%	1,820
National Aviation System	48.2%	25.9%	2,352
Extreme weather	8.3%	6.9%	404
Security	0.0%	0.1%	0

4,875 delay minutes on 64 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.

Questions and answers

How many flights left HHH on time in May 2025?

70.0% of 253 scheduled domestic departures left less than 15 minutes late, and 70.0% reached their destination on time. The national figures that month were 76.7% and 75.4%.

How does that compare with a year earlier?

In May 2024, 62.1% of 232 departures left on time and 1.3% were cancelled, against 70.0% and 4.0% in May 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for May 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for HHH · methodology · corrections.