Trenton Mercer in July 2026

66.7%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 July 2026, reporting carriers scheduled 108 domestic departures from Trenton Mercer (TTN). 66.7% left less than 15 minutes late and 63.0% reached their destination on time; 2.8% were cancelled.

Nationally that month, 68.8% of flights departed on time and 69.4% arrived on time, so TTN departures were 2.1 points below the national departure figure.

A year earlier, in July 2025, the airport had 101 departures with 69.3% leaving on time: a change of −2.6 points, with flights up 7%.

Flights arriving at TTN that month were on time 70.6% of the time (109 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, national aviation system 42%, air carrier 34% and late-arriving aircraft 22%.

On time 63.0%
Arrived 15+ minutes late 34.3%
Cancelled 2.8%
Diverted 0.0%

Every scheduled departure from TTN in July 2026, judged by arrival at the destination.

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

Measure	Jul 2026	Jul 2025	TTN, 12 months to Jul 2026	All reported flights, Jul 2026
Departed on time	66.7%	69.3%	74.6%	68.8%
Arrived on time	63.0%	67.3%	74.1%	69.4%
Cancelled	2.8%	5.0%	3.3%	2.6%
Average departure delay (late minutes only)	45.9 min	22.0 min	23.0 min	24.1 min
Scheduled departures a day	4	3	3	21,066
Scheduled departures	108	101	1,012	631,970

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
F9 Frontier Airlines	81	75%	63.0%	52.8 min	3.7%
G4 Allegiant Air	27	25%	63.0%	21.7 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
TTN–MCO	Trenton to Orlando	50	74.0%	34.2 min	6.0%
TTN–TPA	Trenton to Tampa	31	45.2%	81.1 min	0.0%
TTN–FLL	Trenton to Fort Lauderdale	9	55.6%	20.2 min	0.0%
TTN–PGD	Trenton to Punta Gorda	9	55.6%	27.1 min	0.0%
TTN–PIE	Trenton to St. Petersburg	9	77.8%	17.7 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), July 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Jul 2026	Minutes
Air carrier	34.1%	31.7%	1,762
Late-arriving aircraft	21.7%	41.8%	1,118
National Aviation System	42.2%	19.9%	2,177
Extreme weather	2.0%	6.5%	103
Security	0.0%	0.1%	0

5,160 delay minutes on 37 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 July 2026?

66.7% of 108 scheduled domestic departures left less than 15 minutes late, and 63.0% reached their destination on time. The national figures that month were 68.8% and 69.4%.

How does that compare with a year earlier?

In July 2025, 69.3% of 101 departures left on time and 5.0% were cancelled, against 66.7% and 2.8% in July 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for July 2026; 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.