Cyril E King in December 2023

81.9%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 December 2023, reporting carriers scheduled 535 domestic departures from Cyril E King (STT). 81.9% left less than 15 minutes late and 75.3% reached their destination on time; 0.4% were cancelled.

Nationally that month, 83.1% of flights departed on time and 83.8% arrived on time, so STT departures were 1.2 points below the national departure figure.

Flights arriving at STT that month were on time 79.4% of the time (535 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 50%, national aviation system 32% and air carrier 17%.

On time 75.3%
Arrived 15+ minutes late 23.4%
Cancelled 0.4%
Diverted 0.9%

Every scheduled departure from STT in December 2023, judged by arrival at the destination.

December 2023 against a year earlier, the airport's year and the nation

Measure	Dec 2023	Year earlier	STT, 12 months to Jul 2026	All reported flights, Dec 2023
Departed on time	81.9%	—	74.9%	83.1%
Arrived on time	75.3%	—	75.9%	83.8%
Cancelled	0.4%	—	2.1%	0.4%
Average departure delay (late minutes only)	13.2 min	—	21.9 min	11.6 min
Scheduled departures a day	18	—	15	19,013
Scheduled departures	535	—	5,548	570,394

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
AA American Airlines	206	39%	79.1%	2.4 min	0.0%
NK Spirit Airlines	92	17%	63.0%	22.3 min	1.1%
UA United Airlines	92	17%	84.8%	-3.0 min	1.1%
DL Delta Air Lines	67	13%	77.6%	1.1 min	0.0%
B6 JetBlue Airways	65	12%	63.1%	19.3 min	0.0%
F9 Frontier Airlines	13	2%	84.6%	2.1 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
STT–MIA	Charlotte Amalie to Miami	83	75.9%	2.8 min	0.0%
STT–SJU	Charlotte Amalie to San Juan	78	66.7%	16.4 min	0.0%
STT–MCO	Charlotte Amalie to Orlando	61	63.9%	20.0 min	0.0%
STT–CLT	Charlotte Amalie to Charlotte	55	87.3%	3.5 min	0.0%
STT–ATL	Charlotte Amalie to Atlanta	49	71.4%	8.7 min	0.0%
STT–JFK	Charlotte Amalie to New York	49	85.7%	-7.2 min	0.0%
STT–EWR	Charlotte Amalie to Newark	31	83.9%	-7.9 min	3.2%
STT–FLL	Charlotte Amalie to Fort Lauderdale	31	61.3%	26.9 min	3.2%
STT–IAD	Charlotte Amalie to Washington	31	87.1%	-0.4 min	0.0%
STT–PHL	Charlotte Amalie to Philadelphia	28	75.0%	2.0 min	0.0%
STT–ORD	Charlotte Amalie to Chicago	24	87.5%	-5.7 min	0.0%
STT–IAH	Charlotte Amalie to Houston	10	70.0%	9.1 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), December 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2023	Minutes
Air carrier	17.4%	37.1%	1,319
Late-arriving aircraft	50.2%	38.8%	3,800
National Aviation System	31.5%	17.6%	2,384
Extreme weather	0.4%	6.2%	28
Security	0.6%	0.3%	45

7,576 delay minutes on 125 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 December 2023?

81.9% of 535 scheduled domestic departures left less than 15 minutes late, and 75.3% reached their destination on time. The national figures that month were 83.1% and 83.8%.

How does that compare with a year earlier?

December 2022 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 December 2023; 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.