Charleston AFB/International in March 2025

81.2%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 March 2025, reporting carriers scheduled 2,026 domestic departures from Charleston AFB/International (CHS). 81.2% left less than 15 minutes late and 80.7% reached their destination on time; 1.2% were cancelled.

Nationally that month, 79.9% of flights departed on time and 79.3% arrived on time, so CHS departures were 1.3 points above the national departure figure.

A year earlier, in March 2024, the airport had 2,053 departures with 81.4% leaving on time: a change of −0.2 points, with flights down 1%.

Flights arriving at CHS that month were on time 80.8% of the time (2,028 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 45%, air carrier 27% and national aviation system 24%.

On time 80.7%
Arrived 15+ minutes late 18.1%
Cancelled 1.2%
Diverted 0.0%

Every scheduled departure from CHS in March 2025, judged by arrival at the destination.

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

Measure	Mar 2025	Mar 2024	CHS, 12 months to Jul 2026	All reported flights, Mar 2025
Departed on time	81.2%	81.4%	77.8%	79.9%
Arrived on time	80.7%	82.6%	77.5%	79.3%
Cancelled	1.2%	0.6%	2.3%	1.2%
Average departure delay (late minutes only)	15.3 min	15.1 min	18.1 min	14.9 min
Scheduled departures a day	68	68	67	20,029
Scheduled departures	2,026	2,053	24,565	600,872

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
AA American Airlines	361	18%	84.2%	8.8 min	0.3%
WN Southwest Airlines	326	16%	83.1%	1.5 min	0.6%
DL Delta Air Lines	282	14%	84.8%	7.1 min	1.1%
YX Republic Airline	246	12%	81.3%	3.8 min	1.6%
UA United Airlines	228	11%	84.2%	-1.1 min	0.9%
OH PSA Airlines	218	11%	69.3%	10.5 min	3.7%
B6 JetBlue Airways	173	9%	74.6%	11.8 min	2.3%
MQ Envoy Air	56	3%	80.4%	10.0 min	0.0%
NK Spirit Airlines	51	3%	80.4%	14.6 min	0.0%
OO SkyWest Airlines	32	2%	75.0%	6.3 min	0.0%
AS Alaska Airlines	31	2%	90.3%	-12.4 min	0.0%
F9 Frontier Airlines	13	1%	23.1%	49.5 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
CHS–ATL	Charleston to Atlanta	256	87.1%	3.0 min	1.2%
CHS–CLT	Charleston to Charlotte	218	84.9%	3.1 min	0.5%
CHS–DCA	Charleston to Washington	176	65.9%	13.0 min	4.0%
CHS–ORD	Charleston to Chicago	151	84.1%	3.8 min	0.7%
CHS–PHL	Charleston to Philadelphia	137	80.3%	4.4 min	1.5%
CHS–EWR	Charleston to Newark	123	83.7%	4.3 min	1.6%
CHS–BOS	Charleston to Boston	121	75.2%	16.8 min	1.7%
CHS–BWI	Charleston to Baltimore	108	89.8%	0.0 min	0.9%
CHS–DFW	Charleston to Dallas/Fort Worth	88	77.3%	26.0 min	1.1%
CHS–BNA	Charleston to Nashville	71	81.7%	2.8 min	0.0%
CHS–IAD	Charleston to Washington	67	86.6%	1.3 min	0.0%
CHS–LGA	Charleston to New York	66	89.4%	-5.3 min	1.5%

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), March 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Mar 2025	Minutes
Air carrier	26.6%	33.0%	7,917
Late-arriving aircraft	44.6%	39.2%	13,248
National Aviation System	23.6%	21.9%	7,006
Extreme weather	4.9%	5.9%	1,449
Security	0.4%	0.1%	113

29,733 delay minutes on 367 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 March 2025?

81.2% of 2,026 scheduled domestic departures left less than 15 minutes late, and 80.7% reached their destination on time. The national figures that month were 79.9% and 79.3%.

How does that compare with a year earlier?

In March 2024, 81.4% of 2,053 departures left on time and 0.6% were cancelled, against 81.2% and 1.2% in March 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for March 2025; 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.