Henry E. Rohlsen in April 2025

79.3%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 2025, reporting carriers scheduled 116 domestic departures from Henry E. Rohlsen (STX). 79.3% left less than 15 minutes late and 80.2% reached their destination on time; 1.7% were cancelled.

Nationally that month, 80.6% of flights departed on time and 79.5% arrived on time, so STX departures were 1.3 points below the national departure figure.

A year earlier, in April 2024, the airport had 108 departures with 75.9% leaving on time: a change of +3.4 points, with flights up 7%.

Flights arriving at STX that month were on time 81.0% of the time (116 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 64%, air carrier 28% and national aviation system 6%.

On time 80.2%
Arrived 15+ minutes late 18.1%
Cancelled 1.7%
Diverted 0.0%

Every scheduled departure from STX in April 2025, judged by arrival at the destination.

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

Measure	Apr 2025	Apr 2024	STX, 12 months to Jul 2026	All reported flights, Apr 2025
Departed on time	79.3%	75.9%	72.9%	80.6%
Arrived on time	80.2%	70.4%	75.0%	79.5%
Cancelled	1.7%	1.9%	1.4%	0.8%
Average departure delay (late minutes only)	12.9 min	16.2 min	25.9 min	14.1 min
Scheduled departures a day	4	4	4	19,465
Scheduled departures	116	108	1,387	583,950

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
AA American Airlines	64	55%	81.3%	2.4 min	0.0%
B6 JetBlue Airways	30	26%	73.3%	-3.8 min	3.3%
DL Delta Air Lines	14	12%	78.6%	-0.8 min	7.1%
NK Spirit Airlines	8	7%	100.0%	-9.6 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
STX–MIA	Christiansted to Miami	57	78.9%	5.5 min	0.0%
STX–SJU	Christiansted to San Juan	30	73.3%	-3.8 min	3.3%
STX–ATL	Christiansted to Atlanta	14	78.6%	-0.8 min	7.1%
STX–FLL	Christiansted to Fort Lauderdale	8	100.0%	-9.6 min	0.0%
STX–CLT	Christiansted to Charlotte	7	100.0%	-23.0 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), April 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2025	Minutes
Air carrier	27.9%	32.7%	338
Late-arriving aircraft	63.6%	39.4%	770
National Aviation System	6.4%	22.2%	77
Extreme weather	2.1%	5.5%	26
Security	0.0%	0.2%	0

1,211 delay minutes on 21 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 STX on time in April 2025?

79.3% of 116 scheduled domestic departures left less than 15 minutes late, and 80.2% reached their destination on time. The national figures that month were 80.6% and 79.5%.

How does that compare with a year earlier?

In April 2024, 75.9% of 108 departures left on time and 1.9% were cancelled, against 79.3% and 1.7% in April 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for April 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for STX · methodology · corrections.