Cyril E King in April 2026

82.5%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 2026, reporting carriers scheduled 611 domestic departures from Cyril E King (STT). 82.5% left less than 15 minutes late and 81.0% reached their destination on time; 0.7% were cancelled.

Nationally that month, 79.1% of flights departed on time and 78.9% arrived on time, so STT departures were 3.4 points above the national departure figure.

A year earlier, in April 2025, the airport had 490 departures with 81.6% leaving on time: a change of +0.9 points, with flights up 25%.

Flights arriving at STT that month were on time 80.2% of the time (611 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 55%, air carrier 27% and national aviation system 17%.

On time 81.0%
Arrived 15+ minutes late 16.9%
Cancelled 0.7%
Diverted 1.5%

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

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

Measure	Apr 2026	Apr 2025	STT, 12 months to Jul 2026	All reported flights, Apr 2026
Departed on time	82.5%	81.6%	74.9%	79.1%
Arrived on time	81.0%	83.7%	75.9%	78.9%
Cancelled	0.7%	0.4%	2.1%	0.9%
Average departure delay (late minutes only)	13.3 min	19.2 min	21.9 min	14.5 min
Scheduled departures a day	20	16	15	19,931
Scheduled departures	611	490	5,548	597,919

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
AA American Airlines	232	38%	81.5%	4.7 min	0.4%
DL Delta Air Lines	129	21%	86.8%	-8.7 min	0.0%
UA United Airlines	94	15%	78.7%	-3.4 min	1.1%
B6 JetBlue Airways	58	9%	86.2%	-4.7 min	0.0%
NK Spirit Airlines	56	9%	66.1%	9.6 min	3.6%
WN Southwest Airlines	42	7%	78.6%	2.5 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
STT–MIA	Charlotte Amalie to Miami	96	82.3%	13.8 min	1.0%
STT–ATL	Charlotte Amalie to Atlanta	72	86.1%	-6.5 min	0.0%
STT–JFK	Charlotte Amalie to New York	62	82.3%	-7.0 min	0.0%
STT–CLT	Charlotte Amalie to Charlotte	60	93.3%	-13.5 min	0.0%
STT–SJU	Charlotte Amalie to San Juan	58	86.2%	-4.7 min	0.0%
STT–MCO	Charlotte Amalie to Orlando	52	71.2%	5.4 min	1.9%
STT–ORD	Charlotte Amalie to Chicago	35	71.4%	6.6 min	0.0%
STT–FLL	Charlotte Amalie to Fort Lauderdale	34	70.6%	8.1 min	2.9%
STT–PHL	Charlotte Amalie to Philadelphia	31	64.5%	24.0 min	0.0%
STT–EWR	Charlotte Amalie to Newark	30	83.3%	-12.3 min	3.3%
STT–IAD	Charlotte Amalie to Washington	30	83.3%	-6.1 min	0.0%
STT–BOS	Charlotte Amalie to Boston	25	88.0%	-11.1 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), April 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2026	Minutes
Air carrier	27.4%	33.5%	1,974
Late-arriving aircraft	54.6%	40.4%	3,940
National Aviation System	16.8%	21.0%	1,214
Extreme weather	0.3%	5.0%	20
Security	0.9%	0.1%	68

7,216 delay minutes on 103 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 2026?

82.5% of 611 scheduled domestic departures left less than 15 minutes late, and 81.0% reached their destination on time. The national figures that month were 79.1% and 78.9%.

How does that compare with a year earlier?

In April 2025, 81.6% of 490 departures left on time and 0.4% were cancelled, against 82.5% and 0.7% in April 2026.

Provenance

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