Wilmington International in December 2024

78.4%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 709 domestic departures from Wilmington International (ILM). 78.4% left less than 15 minutes late and 77.9% reached their destination on time; 0.3% were cancelled.

Nationally that month, 77.8% of flights departed on time and 78.1% arrived on time, so ILM departures were 0.6 points above the national departure figure.

A year earlier, in December 2023, the airport had 536 departures with 91.6% leaving on time: a change of −13.2 points, with flights up 32%.

Flights arriving at ILM that month were on time 76.3% of the time (709 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 47%, air carrier 31% and national aviation system 19%.

On time 77.9%
Arrived 15+ minutes late 21.6%
Cancelled 0.3%
Diverted 0.3%

Every scheduled departure from ILM 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	ILM, 12 months to Jul 2026	All reported flights, Dec 2024
Departed on time	78.4%	91.6%	78.3%	77.8%
Arrived on time	77.9%	90.7%	78.2%	78.1%
Cancelled	0.3%	0.4%	3.2%	0.7%
Average departure delay (late minutes only)	16.8 min	7.5 min	16.8 min	16.6 min
Scheduled departures a day	24	18	21	19,686
Scheduled departures	709	536	7,522	590,581

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OH PSA Airlines	182	26%	75.8%	17.3 min	0.0%
YX Republic Airline	143	20%	79.0%	4.4 min	0.7%
9E Endeavor Air	124	17%	76.6%	7.3 min	0.0%
MQ Envoy Air	113	16%	78.8%	2.7 min	0.9%
AA American Airlines	86	12%	77.9%	4.7 min	0.0%
DL Delta Air Lines	61	9%	82.0%	15.4 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ILM–CLT	Wilmington to Charlotte	237	80.6%	6.2 min	0.0%
ILM–LGA	Wilmington to New York	151	80.1%	3.1 min	0.7%
ILM–ATL	Wilmington to Atlanta	116	78.4%	12.8 min	0.0%
ILM–DFW	Wilmington to Dallas/Fort Worth	59	76.3%	2.6 min	1.7%
ILM–EWR	Wilmington to Newark	59	76.3%	7.9 min	0.0%
ILM–DCA	Wilmington to Washington	57	56.1%	43.2 min	0.0%
ILM–MIA	Wilmington to Miami	29	89.7%	-6.1 min	0.0%
ILM–PHL	Wilmington to Philadelphia	1	100.0%	-8.0 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), December 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2024	Minutes
Air carrier	31.1%	34.3%	3,608
Late-arriving aircraft	47.4%	40.2%	5,508
National Aviation System	19.2%	17.8%	2,233
Extreme weather	2.3%	7.5%	262
Security	0.0%	0.2%	0

11,611 delay minutes on 153 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 ILM on time in December 2024?

78.4% of 709 scheduled domestic departures left less than 15 minutes late, and 77.9% 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, 91.6% of 536 departures left on time and 0.4% were cancelled, against 78.4% and 0.3% 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 ILM · methodology · corrections.