Cyril E King in June 2025

86.2%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 June 2025, reporting carriers scheduled 479 domestic departures from Cyril E King (STT). 86.2% left less than 15 minutes late and 85.0% reached their destination on time; 0.4% were cancelled.

Nationally that month, 71.4% of flights departed on time and 70.3% arrived on time, so STT departures were 14.8 points above the national departure figure.

A year earlier, in June 2024, the airport had 504 departures with 70.6% leaving on time: a change of +15.6 points, with flights down 5%.

Flights arriving at STT that month were on time 83.3% of the time (479 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 40%, late-arriving aircraft 38% and national aviation system 18%.

On time 85.0%
Arrived 15+ minutes late 12.7%
Cancelled 0.4%
Diverted 1.9%

Every scheduled departure from STT in June 2025, judged by arrival at the destination.

June 2025 against a year earlier, the airport's year and the nation

Measure	Jun 2025	Jun 2024	STT, 12 months to Jul 2026	All reported flights, Jun 2025
Departed on time	86.2%	70.6%	74.9%	71.4%
Arrived on time	85.0%	71.2%	75.9%	70.3%
Cancelled	0.4%	0.6%	2.1%	1.6%
Average departure delay (late minutes only)	12.0 min	19.8 min	21.9 min	22.1 min
Scheduled departures a day	16	17	15	20,386
Scheduled departures	479	504	5,548	611,575

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
AA American Airlines	188	39%	85.6%	0.3 min	0.5%
DL Delta Air Lines	94	20%	85.1%	-6.4 min	1.1%
NK Spirit Airlines	90	19%	88.9%	-17.9 min	0.0%
UA United Airlines	73	15%	79.5%	-7.9 min	0.0%
B6 JetBlue Airways	34	7%	82.4%	-0.8 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
STT–ATL	Charlotte Amalie to Atlanta	64	89.1%	-8.2 min	1.6%
STT–MIA	Charlotte Amalie to Miami	64	90.6%	12.6 min	0.0%
STT–CLT	Charlotte Amalie to Charlotte	60	81.7%	-12.0 min	1.7%
STT–JFK	Charlotte Amalie to New York	60	83.3%	-4.9 min	0.0%
STT–MCO	Charlotte Amalie to Orlando	56	83.9%	-17.6 min	0.0%
STT–FLL	Charlotte Amalie to Fort Lauderdale	34	97.1%	-18.3 min	0.0%
STT–SJU	Charlotte Amalie to San Juan	34	82.4%	-0.8 min	0.0%
STT–DFW	Charlotte Amalie to Dallas/Fort Worth	30	76.7%	8.6 min	0.0%
STT–IAD	Charlotte Amalie to Washington	30	86.7%	-15.1 min	0.0%
STT–IAH	Charlotte Amalie to Houston	30	63.3%	5.5 min	0.0%
STT–EWR	Charlotte Amalie to Newark	9	100.0%	-22.0 min	0.0%
STT–ORD	Charlotte Amalie to Chicago	4	100.0%	-20.0 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), June 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Jun 2025	Minutes
Air carrier	40.1%	31.6%	2,120
Late-arriving aircraft	38.3%	40.6%	2,027
National Aviation System	17.9%	20.9%	949
Extreme weather	3.6%	6.9%	192
Security	0.0%	0.2%	0

5,288 delay minutes on 61 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 June 2025?

86.2% of 479 scheduled domestic departures left less than 15 minutes late, and 85.0% reached their destination on time. The national figures that month were 71.4% and 70.3%.

How does that compare with a year earlier?

In June 2024, 70.6% of 504 departures left on time and 0.6% were cancelled, against 86.2% and 0.4% in June 2025.

Provenance

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