Cyril E King in April 2024

77.3%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 April 2024, reporting carriers scheduled 542 domestic departures from Cyril E King (STT). 77.3% left less than 15 minutes late and 71.4% reached their destination on time; 1.1% were cancelled.

Nationally that month, 80.5% of flights departed on time and 80.2% arrived on time, so STT departures were 3.2 points below the national departure figure.

Flights arriving at STT that month were on time 79.1% of the time (541 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 43%, air carrier 32% and national aviation system 22%.

On time 71.4%
Arrived 15+ minutes late 26.0%
Cancelled 1.1%
Diverted 1.5%

Every scheduled departure from STT in April 2024, judged by arrival at the destination.

April 2024 against a year earlier, the airport's year and the nation

Measure	Apr 2024	Year earlier	STT, 12 months to Jul 2026	All reported flights, Apr 2024
Departed on time	77.3%	—	74.9%	80.5%
Arrived on time	71.4%	—	75.9%	80.2%
Cancelled	1.1%	—	2.1%	0.7%
Average departure delay (late minutes only)	18.2 min	—	21.9 min	14.2 min
Scheduled departures a day	18	—	15	19,406
Scheduled departures	542	—	5,548	582,185

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
AA American Airlines	191	35%	73.3%	14.6 min	1.0%
NK Spirit Airlines	114	21%	74.6%	6.0 min	0.9%
DL Delta Air Lines	84	15%	65.5%	15.6 min	0.0%
UA United Airlines	72	13%	68.1%	6.5 min	1.4%
B6 JetBlue Airways	68	13%	77.9%	2.2 min	2.9%
F9 Frontier Airlines	13	2%	38.5%	18.8 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
STT–MIA	Charlotte Amalie to Miami	90	80.0%	5.5 min	0.0%
STT–SJU	Charlotte Amalie to San Juan	81	71.6%	4.9 min	2.5%
STT–CLT	Charlotte Amalie to Charlotte	60	68.3%	31.0 min	3.3%
STT–FLL	Charlotte Amalie to Fort Lauderdale	60	75.0%	5.5 min	0.0%
STT–JFK	Charlotte Amalie to New York	60	71.7%	8.0 min	0.0%
STT–ATL	Charlotte Amalie to Atlanta	54	61.1%	19.9 min	0.0%
STT–MCO	Charlotte Amalie to Orlando	54	74.1%	6.5 min	1.9%
STT–EWR	Charlotte Amalie to Newark	30	80.0%	-5.0 min	0.0%
STT–IAD	Charlotte Amalie to Washington	30	63.3%	15.8 min	3.3%
STT–ORD	Charlotte Amalie to Chicago	8	50.0%	14.5 min	0.0%
STT–PHL	Charlotte Amalie to Philadelphia	7	42.9%	28.9 min	0.0%
STT–DFW	Charlotte Amalie to Dallas/Fort Worth	4	75.0%	-0.7 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), April 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2024	Minutes
Air carrier	31.7%	33.6%	2,971
Late-arriving aircraft	43.0%	41.0%	4,030
National Aviation System	22.3%	20.0%	2,089
Extreme weather	3.1%	5.1%	292
Security	0.0%	0.2%	0

9,382 delay minutes on 141 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 April 2024?

77.3% of 542 scheduled domestic departures left less than 15 minutes late, and 71.4% reached their destination on time. The national figures that month were 80.5% and 80.2%.

How does that compare with a year earlier?

April 2023 is outside the 36 months on file, or the airport had too few reported flights that month.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for April 2024; 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.