Trenton Mercer in August 2025

77.5%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 August 2025, reporting carriers scheduled 102 domestic departures from Trenton Mercer (TTN). 77.5% left less than 15 minutes late and 76.5% reached their destination on time; 3.9% were cancelled.

Nationally that month, 76.8% of flights departed on time and 76.3% arrived on time, so TTN departures were 0.7 points above the national departure figure.

A year earlier, in August 2024, the airport had 130 departures with 70.0% leaving on time: a change of +7.5 points, with flights down 22%.

Flights arriving at TTN that month were on time 63.7% of the time (102 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 41%, national aviation system 32% and air carrier 27%.

On time 76.5%
Arrived 15+ minutes late 19.6%
Cancelled 3.9%
Diverted 0.0%

Every scheduled departure from TTN in August 2025, judged by arrival at the destination.

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

Measure	Aug 2025	Aug 2024	TTN, 12 months to Jul 2026	All reported flights, Aug 2025
Departed on time	77.5%	70.0%	74.6%	76.8%
Arrived on time	76.5%	70.0%	74.1%	76.3%
Cancelled	3.9%	3.1%	3.3%	1.1%
Average departure delay (late minutes only)	13.7 min	30.4 min	23.0 min	17.6 min
Scheduled departures a day	3	4	3	20,079
Scheduled departures	102	130	1,012	602,378

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
F9 Frontier Airlines	102	100%	76.5%	2.2 min	3.9%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
TTN–MCO	Trenton to Orlando	53	81.1%	-0.2 min	3.8%
TTN–TPA	Trenton to Tampa	29	69.0%	11.2 min	0.0%
TTN–ATL	Trenton to Atlanta	11	81.8%	-8.1 min	9.1%
TTN–MYR	Trenton to Myrtle Beach	9	66.7%	-2.7 min	11.1%

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), August 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Aug 2025	Minutes
Air carrier	26.9%	33.1%	329
Late-arriving aircraft	41.3%	40.5%	504
National Aviation System	31.8%	19.2%	388
Extreme weather	0.0%	7.0%	0
Security	0.0%	0.1%	0

1,221 delay minutes on 20 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 TTN on time in August 2025?

77.5% of 102 scheduled domestic departures left less than 15 minutes late, and 76.5% reached their destination on time. The national figures that month were 76.8% and 76.3%.

How does that compare with a year earlier?

In August 2024, 70.0% of 130 departures left on time and 3.1% were cancelled, against 77.5% and 3.9% in August 2025.

Provenance

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