Cyril E King in May 2024

74.1%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 May 2024, reporting carriers scheduled 541 domestic departures from Cyril E King (STT). 74.1% left less than 15 minutes late and 69.9% reached their destination on time; 0.7% were cancelled.

Nationally that month, 73.4% of flights departed on time and 72.3% arrived on time, so STT departures were 0.7 points above the national departure figure.

Flights arriving at STT that month were on time 79.3% of the time (541 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 42%, air carrier 33% and national aviation system 24%.

On time 69.9%
Arrived 15+ minutes late 27.2%
Cancelled 0.7%
Diverted 2.2%

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

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

Measure	May 2024	Year earlier	STT, 12 months to Jul 2026	All reported flights, May 2024
Departed on time	74.1%	—	74.9%	73.4%
Arrived on time	69.9%	—	75.9%	72.3%
Cancelled	0.7%	—	2.1%	1.4%
Average departure delay (late minutes only)	29.5 min	—	21.9 min	20.8 min
Scheduled departures a day	18	—	15	20,325
Scheduled departures	541	—	5,548	609,743

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
AA American Airlines	194	36%	64.9%	41.1 min	0.5%
NK Spirit Airlines	122	23%	77.0%	18.6 min	0.0%
DL Delta Air Lines	95	18%	69.5%	9.2 min	0.0%
UA United Airlines	72	13%	72.2%	8.0 min	1.4%
B6 JetBlue Airways	40	7%	75.0%	8.4 min	2.5%
F9 Frontier Airlines	18	3%	55.6%	32.2 min	5.6%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
STT–MIA	Charlotte Amalie to Miami	93	63.4%	40.4 min	1.1%
STT–ATL	Charlotte Amalie to Atlanta	64	70.3%	9.1 min	0.0%
STT–CLT	Charlotte Amalie to Charlotte	62	64.5%	60.5 min	0.0%
STT–FLL	Charlotte Amalie to Fort Lauderdale	62	83.9%	4.7 min	0.0%
STT–JFK	Charlotte Amalie to New York	62	67.7%	13.3 min	0.0%
STT–MCO	Charlotte Amalie to Orlando	60	70.0%	33.0 min	0.0%
STT–SJU	Charlotte Amalie to San Juan	58	69.0%	15.7 min	3.4%
STT–IAD	Charlotte Amalie to Washington	32	71.9%	9.8 min	3.1%
STT–EWR	Charlotte Amalie to Newark	24	83.3%	-6.5 min	0.0%
STT–IAH	Charlotte Amalie to Houston	12	50.0%	36.5 min	0.0%
STT–DFW	Charlotte Amalie to Dallas/Fort Worth	4	50.0%	2.8 min	0.0%
STT–ORD	Charlotte Amalie to Chicago	4	75.0%	0.8 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), May 2024.

Delay causes

BTS cause category	Share of delay minutes	National, May 2024	Minutes
Air carrier	32.5%	29.8%	5,099
Late-arriving aircraft	42.2%	43.0%	6,629
National Aviation System	23.5%	20.1%	3,692
Extreme weather	1.7%	7.0%	262
Security	0.1%	0.1%	13

15,695 delay minutes on 147 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 May 2024?

74.1% of 541 scheduled domestic departures left less than 15 minutes late, and 69.9% reached their destination on time. The national figures that month were 73.4% and 72.3%.

How does that compare with a year earlier?

May 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 May 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.