Charleston AFB/International in June 2026

76.4%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 June 2026, reporting carriers scheduled 2,117 domestic departures from Charleston AFB/International (CHS). 76.4% left less than 15 minutes late and 75.2% reached their destination on time; 2.4% were cancelled.

Nationally that month, 72.2% of flights departed on time and 72.8% arrived on time, so CHS departures were 4.2 points above the national departure figure.

A year earlier, in June 2025, the airport had 2,275 departures with 74.1% leaving on time: a change of +2.3 points, with flights down 7%.

Flights arriving at CHS that month were on time 72.6% of the time (2,116 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 42%, national aviation system 37% and air carrier 21%.

On time 75.2%
Arrived 15+ minutes late 21.8%
Cancelled 2.4%
Diverted 0.7%

Every scheduled departure from CHS in June 2026, judged by arrival at the destination.

June 2026 against a year earlier, the airport's year and the nation

Measure	Jun 2026	Jun 2025	CHS, 12 months to Jul 2026	All reported flights, Jun 2026
Departed on time	76.4%	74.1%	77.8%	72.2%
Arrived on time	75.2%	73.8%	77.5%	72.8%
Cancelled	2.4%	2.0%	2.3%	1.6%
Average departure delay (late minutes only)	20.5 min	20.9 min	18.1 min	20.6 min
Scheduled departures a day	71	76	67	20,253
Scheduled departures	2,117	2,275	24,565	607,577

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
AA American Airlines	403	19%	78.9%	4.0 min	2.2%
DL Delta Air Lines	401	19%	84.5%	0.5 min	1.7%
WN Southwest Airlines	387	18%	66.4%	14.7 min	0.0%
OH PSA Airlines	267	13%	70.0%	36.8 min	4.5%
UA United Airlines	232	11%	81.5%	8.6 min	0.0%
YX Republic Airline	169	8%	74.6%	-2.5 min	8.9%
B6 JetBlue Airways	153	7%	67.3%	21.3 min	3.3%
MQ Envoy Air	32	2%	75.0%	3.7 min	6.3%
AS Alaska Airlines	30	1%	83.3%	8.8 min	0.0%
OO SkyWest Airlines	22	1%	54.5%	55.4 min	4.5%
G4 Allegiant Air	21	1%	52.4%	30.8 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
CHS–ATL	Charleston to Atlanta	282	90.4%	-5.0 min	1.1%
CHS–ORD	Charleston to Chicago	202	73.3%	6.5 min	4.0%
CHS–CLT	Charleston to Charlotte	195	81.0%	9.0 min	1.0%
CHS–DCA	Charleston to Washington	146	71.2%	50.4 min	4.1%
CHS–LGA	Charleston to New York	127	71.7%	7.1 min	9.4%
CHS–DFW	Charleston to Dallas/Fort Worth	124	66.9%	18.9 min	5.6%
CHS–BWI	Charleston to Baltimore	107	78.5%	14.9 min	0.0%
CHS–BOS	Charleston to Boston	104	71.2%	26.2 min	1.9%
CHS–PHL	Charleston to Philadelphia	91	75.8%	0.2 min	5.5%
CHS–BNA	Charleston to Nashville	90	71.1%	8.2 min	0.0%
CHS–EWR	Charleston to Newark	90	81.1%	13.7 min	0.0%
CHS–IAD	Charleston to Washington	60	91.7%	-6.2 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), June 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Jun 2026	Minutes
Air carrier	20.5%	30.8%	8,419
Late-arriving aircraft	42.1%	42.1%	17,339
National Aviation System	36.9%	20.3%	15,195
Extreme weather	0.4%	6.7%	165
Security	0.0%	0.1%	19

41,137 delay minutes on 461 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 CHS on time in June 2026?

76.4% of 2,117 scheduled domestic departures left less than 15 minutes late, and 75.2% reached their destination on time. The national figures that month were 72.2% and 72.8%.

How does that compare with a year earlier?

In June 2025, 74.1% of 2,275 departures left on time and 2.0% were cancelled, against 76.4% and 2.4% in June 2026.

Provenance

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