Newark Liberty International in December 2025

70.9%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 December 2025, reporting carriers scheduled 10,652 domestic departures from Newark Liberty International (EWR). 70.9% left less than 15 minutes late and 68.4% reached their destination on time; 2.6% were cancelled.

Nationally that month, 72.0% of flights departed on time and 71.9% arrived on time, so EWR departures were 1.1 points below the national departure figure.

A year earlier, in December 2024, the airport had 10,865 departures with 74.1% leaving on time: a change of −3.2 points, with flights down 2%.

Flights arriving at EWR that month were on time 69.4% of the time (10,687 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 43%, national aviation system 25% and air carrier 25%.

On time 68.4%
Arrived 15+ minutes late 28.7%
Cancelled 2.6%
Diverted 0.3%

Every scheduled departure from EWR in December 2025, judged by arrival at the destination.

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

Measure	Dec 2025	Dec 2024	EWR, 12 months to Jul 2026	All reported flights, Dec 2025
Departed on time	70.9%	74.1%	77.3%	72.0%
Arrived on time	68.4%	73.4%	75.3%	71.9%
Cancelled	2.6%	0.7%	3.1%	1.5%
Average departure delay (late minutes only)	22.3 min	17.7 min	17.0 min	21.2 min
Scheduled departures a day	355	362	336	19,410
Scheduled departures	10,652	10,865	122,705	582,304

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
UA United Airlines	5,996	56%	71.2%	12.7 min	1.0%
YX Republic Airline	1,808	17%	72.2%	7.6 min	4.9%
NK Spirit Airlines	789	7%	54.0%	31.7 min	7.0%
DL Delta Air Lines	541	5%	67.5%	19.9 min	5.7%
AA American Airlines	530	5%	71.9%	17.2 min	1.7%
B6 JetBlue Airways	458	4%	55.7%	26.1 min	3.7%
AS Alaska Airlines	300	3%	54.0%	20.5 min	2.0%
F9 Frontier Airlines	93	1%	47.3%	58.6 min	7.5%
G4 Allegiant Air	71	1%	59.2%	30.9 min	0.0%
MQ Envoy Air	66	1%	59.1%	29.5 min	7.6%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
EWR–MCO	Newark to Orlando	607	68.7%	17.2 min	1.8%
EWR–ATL	Newark to Atlanta	524	67.9%	22.3 min	3.4%
EWR–ORD	Newark to Chicago	511	66.7%	21.6 min	1.6%
EWR–FLL	Newark to Fort Lauderdale	488	63.5%	19.6 min	3.3%
EWR–LAX	Newark to Los Angeles	476	63.0%	21.1 min	1.7%
EWR–PBI	Newark to West Palm Beach/Palm Beach	395	66.3%	15.7 min	2.0%
EWR–MIA	Newark to Miami	394	71.8%	10.9 min	2.8%
EWR–SFO	Newark to San Francisco	368	57.1%	34.0 min	1.1%
EWR–IAH	Newark to Houston	333	76.9%	5.3 min	0.9%
EWR–CLT	Newark to Charlotte	317	68.5%	27.1 min	2.2%
EWR–DTW	Newark to Detroit	307	61.6%	21.4 min	5.9%
EWR–DFW	Newark to Dallas/Fort Worth	297	78.8%	7.6 min	1.7%

By scheduled departure hour

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), December 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2025	Minutes
Air carrier	24.8%	33.3%	57,063
Late-arriving aircraft	42.6%	41.1%	97,908
National Aviation System	25.4%	19.1%	58,478
Extreme weather	6.8%	6.4%	15,710
Security	0.3%	0.2%	784

229,943 delay minutes on 3,054 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 EWR on time in December 2025?

70.9% of 10,652 scheduled domestic departures left less than 15 minutes late, and 68.4% reached their destination on time. The national figures that month were 72.0% and 71.9%.

How does that compare with a year earlier?

In December 2024, 74.1% of 10,865 departures left on time and 0.7% were cancelled, against 70.9% and 2.6% in December 2025.

Provenance

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