Newark Liberty International in December 2024

74.1%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 2024, reporting carriers scheduled 10,865 domestic departures from Newark Liberty International (EWR). 74.1% left less than 15 minutes late and 73.4% reached their destination on time; 0.7% were cancelled.

Nationally that month, 77.8% of flights departed on time and 78.1% arrived on time, so EWR departures were 3.7 points below the national departure figure.

A year earlier, in December 2023, the airport had 10,517 departures with 84.2% leaving on time: a change of −10.1 points, with flights up 3%.

Flights arriving at EWR that month were on time 71.7% of the time (10,871 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 43%, air carrier 28% and national aviation system 26%.

On time 73.4%
Arrived 15+ minutes late 25.7%
Cancelled 0.7%
Diverted 0.3%

Every scheduled departure from EWR in December 2024, judged by arrival at the destination.

December 2024 against a year earlier, the airport's year and the nation

Measure	Dec 2024	Dec 2023	EWR, 12 months to Jul 2026	All reported flights, Dec 2024
Departed on time	74.1%	84.2%	77.3%	77.8%
Arrived on time	73.4%	86.1%	75.3%	78.1%
Cancelled	0.7%	0.1%	3.1%	0.7%
Average departure delay (late minutes only)	17.7 min	11.1 min	17.0 min	16.6 min
Scheduled departures a day	362	351	336	19,686
Scheduled departures	10,865	10,517	122,705	590,581

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
UA United Airlines	5,952	55%	73.4%	7.7 min	0.5%
YX Republic Airline	1,781	16%	79.5%	-0.3 min	1.7%
NK Spirit Airlines	864	8%	71.4%	9.8 min	0.8%
DL Delta Air Lines	541	5%	70.1%	16.6 min	0.0%
B6 JetBlue Airways	520	5%	60.0%	21.5 min	0.6%
AA American Airlines	519	5%	74.6%	13.2 min	0.6%
AS Alaska Airlines	288	3%	78.8%	-0.3 min	1.0%
9E Endeavor Air	126	1%	68.3%	14.6 min	0.0%
MQ Envoy Air	107	1%	63.6%	21.7 min	0.0%
F9 Frontier Airlines	93	1%	62.4%	16.3 min	0.0%
G4 Allegiant Air	74	1%	68.9%	23.9 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
EWR–MCO	Newark to Orlando	639	73.4%	6.5 min	0.5%
EWR–ORD	Newark to Chicago	545	70.1%	11.6 min	0.4%
EWR–ATL	Newark to Atlanta	538	70.1%	12.8 min	0.6%
EWR–FLL	Newark to Fort Lauderdale	504	68.1%	11.9 min	0.6%
EWR–LAX	Newark to Los Angeles	422	75.6%	5.1 min	0.0%
EWR–MIA	Newark to Miami	403	71.5%	10.2 min	0.5%
EWR–SFO	Newark to San Francisco	373	74.0%	4.3 min	0.5%
EWR–PBI	Newark to West Palm Beach/Palm Beach	359	70.2%	13.7 min	0.0%
EWR–IAH	Newark to Houston	341	78.0%	5.8 min	0.3%
EWR–DFW	Newark to Dallas/Fort Worth	313	77.3%	3.5 min	0.6%
EWR–CLT	Newark to Charlotte	309	73.5%	20.4 min	0.0%
EWR–BOS	Newark to Boston	300	68.3%	17.9 min	2.0%

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 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2024	Minutes
Air carrier	28.1%	34.3%	50,268
Late-arriving aircraft	43.1%	40.2%	77,095
National Aviation System	25.6%	17.8%	45,815
Extreme weather	3.0%	7.5%	5,370
Security	0.2%	0.2%	304

178,852 delay minutes on 2,788 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 2024?

74.1% of 10,865 scheduled domestic departures left less than 15 minutes late, and 73.4% reached their destination on time. The national figures that month were 77.8% and 78.1%.

How does that compare with a year earlier?

In December 2023, 84.2% of 10,517 departures left on time and 0.1% were cancelled, against 74.1% and 0.7% in December 2024.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for December 2024; 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.