Cyril E King in March 2025

81.1%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 549 domestic departures from Cyril E King (STT). 81.1% left less than 15 minutes late and 77.6% reached their destination on time; 0.5% were cancelled.

Nationally that month, 79.9% of flights departed on time and 79.3% arrived on time, so STT departures were 1.2 points above the national departure figure.

A year earlier, in March 2024, the airport had 615 departures with 77.4% leaving on time: a change of +3.7 points, with flights down 11%.

Flights arriving at STT that month were on time 82.9% of the time (549 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 41%, late-arriving aircraft 36% and national aviation system 22%.

On time 77.6%
Arrived 15+ minutes late 20.2%
Cancelled 0.5%
Diverted 1.6%

Every scheduled departure from STT 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	STT, 12 months to Jul 2026	All reported flights, Mar 2025
Departed on time	81.1%	77.4%	74.9%	79.9%
Arrived on time	77.6%	68.8%	75.9%	79.3%
Cancelled	0.5%	1.8%	2.1%	1.2%
Average departure delay (late minutes only)	21.5 min	39.3 min	21.9 min	14.9 min
Scheduled departures a day	18	21	15	20,029
Scheduled departures	549	615	5,548	600,872

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
AA American Airlines	228	42%	76.8%	15.6 min	0.0%
DL Delta Air Lines	98	18%	73.5%	12.7 min	1.0%
UA United Airlines	98	18%	77.6%	0.5 min	2.0%
NK Spirit Airlines	76	14%	81.6%	-2.3 min	0.0%
B6 JetBlue Airways	49	9%	83.7%	-0.3 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
STT–MIA	Charlotte Amalie to Miami	93	78.5%	8.6 min	0.0%
STT–ATL	Charlotte Amalie to Atlanta	67	67.2%	23.3 min	1.5%
STT–CLT	Charlotte Amalie to Charlotte	62	80.6%	4.1 min	0.0%
STT–JFK	Charlotte Amalie to New York	62	79.0%	27.8 min	0.0%
STT–SJU	Charlotte Amalie to San Juan	49	83.7%	-0.3 min	0.0%
STT–MCO	Charlotte Amalie to Orlando	43	76.7%	0.6 min	0.0%
STT–FLL	Charlotte Amalie to Fort Lauderdale	33	87.9%	-6.1 min	0.0%
STT–ORD	Charlotte Amalie to Chicago	33	63.6%	15.5 min	0.0%
STT–EWR	Charlotte Amalie to Newark	31	77.4%	-9.6 min	6.5%
STT–IAD	Charlotte Amalie to Washington	31	80.6%	3.2 min	0.0%
STT–PHL	Charlotte Amalie to Philadelphia	31	80.6%	-6.3 min	0.0%
STT–IAH	Charlotte Amalie to Houston	8	100.0%	-2.7 min	0.0%

By scheduled departure hour

100

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	40.6%	33.0%	4,639
Late-arriving aircraft	36.2%	39.2%	4,130
National Aviation System	22.2%	21.9%	2,535
Extreme weather	1.1%	5.9%	120
Security	0.0%	0.1%	0

11,424 delay minutes on 111 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 STT on time in March 2025?

81.1% of 549 scheduled domestic departures left less than 15 minutes late, and 77.6% 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, 77.4% of 615 departures left on time and 1.8% were cancelled, against 81.1% and 0.5% 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 STT · methodology · corrections.