Cyril E King in March 2026

66.6%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 2026, reporting carriers scheduled 764 domestic departures from Cyril E King (STT). 66.6% left less than 15 minutes late and 69.9% reached their destination on time; 1.2% were cancelled.

Nationally that month, 72.8% of flights departed on time and 73.2% arrived on time, so STT departures were 6.2 points below the national departure figure.

A year earlier, in March 2025, the airport had 549 departures with 81.1% leaving on time: a change of −14.5 points, with flights up 39%.

Flights arriving at STT that month were on time 66.1% of the time (764 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 59%, national aviation system 20% and air carrier 19%.

On time 69.9%
Arrived 15+ minutes late 27.1%
Cancelled 1.2%
Diverted 1.8%

Every scheduled departure from STT in March 2026, judged by arrival at the destination.

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

Measure	Mar 2026	Mar 2025	STT, 12 months to Jul 2026	All reported flights, Mar 2026
Departed on time	66.6%	81.1%	74.9%	72.8%
Arrived on time	69.9%	77.6%	75.9%	73.2%
Cancelled	1.2%	0.5%	2.1%	2.9%
Average departure delay (late minutes only)	21.6 min	21.5 min	21.9 min	20.3 min
Scheduled departures a day	26	18	15	20,403
Scheduled departures	764	549	5,548	612,102

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
AA American Airlines	310	41%	75.8%	0.6 min	0.6%
DL Delta Air Lines	155	20%	79.4%	-5.0 min	2.6%
UA United Airlines	116	15%	66.4%	5.5 min	0.9%
B6 JetBlue Airways	62	8%	69.4%	13.6 min	0.0%
NK Spirit Airlines	62	8%	37.1%	42.9 min	3.2%
WN Southwest Airlines	59	8%	55.9%	14.5 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
STT–MIA	Charlotte Amalie to Miami	124	71.8%	2.9 min	1.6%
STT–ATL	Charlotte Amalie to Atlanta	93	78.5%	-3.5 min	3.2%
STT–CLT	Charlotte Amalie to Charlotte	62	85.5%	-12.2 min	0.0%
STT–JFK	Charlotte Amalie to New York	62	83.9%	-5.0 min	0.0%
STT–MCO	Charlotte Amalie to Orlando	62	53.2%	20.5 min	3.2%
STT–SJU	Charlotte Amalie to San Juan	62	69.4%	13.6 min	0.0%
STT–ORD	Charlotte Amalie to Chicago	61	63.9%	0.2 min	0.0%
STT–PHL	Charlotte Amalie to Philadelphia	35	74.3%	29.0 min	0.0%
STT–BOS	Charlotte Amalie to Boston	31	67.7%	-2.5 min	3.2%
STT–EWR	Charlotte Amalie to Newark	31	77.4%	-6.2 min	3.2%
STT–FLL	Charlotte Amalie to Fort Lauderdale	31	32.3%	55.3 min	0.0%
STT–IAD	Charlotte Amalie to Washington	31	77.4%	3.8 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), March 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Mar 2026	Minutes
Air carrier	19.0%	33.5%	2,491
Late-arriving aircraft	58.7%	39.3%	7,716
National Aviation System	19.9%	21.0%	2,619
Extreme weather	1.8%	5.9%	231
Security	0.6%	0.2%	82

13,139 delay minutes on 207 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 2026?

66.6% of 764 scheduled domestic departures left less than 15 minutes late, and 69.9% reached their destination on time. The national figures that month were 72.8% and 73.2%.

How does that compare with a year earlier?

In March 2025, 81.1% of 549 departures left on time and 0.5% were cancelled, against 66.6% and 1.2% in March 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for March 2026; 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.