Trenton Mercer in April 2026

66.2%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 April 2026, reporting carriers scheduled 142 domestic departures from Trenton Mercer (TTN). 66.2% left less than 15 minutes late and 69.0% reached their destination on time; 2.1% were cancelled.

Nationally that month, 79.1% of flights departed on time and 78.9% arrived on time, so TTN departures were 12.9 points below the national departure figure.

A year earlier, in April 2025, the airport had 146 departures with 74.7% leaving on time: a change of −8.5 points, with flights down 3%.

Flights arriving at TTN that month were on time 67.6% of the time (142 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 70%, national aviation system 13% and air carrier 13%.

On time 69.0%
Arrived 15+ minutes late 28.9%
Cancelled 2.1%
Diverted 0.0%

Every scheduled departure from TTN 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	TTN, 12 months to Jul 2026	All reported flights, Apr 2026
Departed on time	66.2%	74.7%	74.6%	79.1%
Arrived on time	69.0%	80.1%	74.1%	78.9%
Cancelled	2.1%	0.7%	3.3%	0.9%
Average departure delay (late minutes only)	33.7 min	20.2 min	23.0 min	14.5 min
Scheduled departures a day	5	5	3	19,931
Scheduled departures	142	146	1,012	597,919

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
F9 Frontier Airlines	117	82%	70.1%	23.9 min	2.6%
G4 Allegiant Air	25	18%	64.0%	16.6 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
TTN–MCO	Trenton to Orlando	56	75.0%	10.8 min	1.8%
TTN–TPA	Trenton to Tampa	28	75.0%	17.5 min	3.6%
TTN–FLL	Trenton to Fort Lauderdale	22	50.0%	71.3 min	4.5%
TTN–PBI	Trenton to West Palm Beach/Palm Beach	13	76.9%	5.2 min	0.0%
TTN–PGD	Trenton to Punta Gorda	8	62.5%	24.5 min	0.0%
TTN–PIE	Trenton to St. Petersburg	8	75.0%	-0.4 min	0.0%
TTN–RSW	Trenton to Fort Myers	7	42.9%	44.7 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), April 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2026	Minutes
Air carrier	12.6%	33.5%	573
Late-arriving aircraft	70.0%	40.4%	3,184
National Aviation System	13.2%	21.0%	602
Extreme weather	4.2%	5.0%	192
Security	0.0%	0.1%	0

4,551 delay minutes on 41 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 April 2026?

66.2% of 142 scheduled domestic departures left less than 15 minutes late, and 69.0% 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, 74.7% of 146 departures left on time and 0.7% were cancelled, against 66.2% and 2.1% 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 TTN · methodology · corrections.