Wilmington International in December 2023

91.6%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 2023, reporting carriers scheduled 536 domestic departures from Wilmington International (ILM). 91.6% left less than 15 minutes late and 90.7% reached their destination on time; 0.4% were cancelled.

Nationally that month, 83.1% of flights departed on time and 83.8% arrived on time, so ILM departures were 8.5 points above the national departure figure.

Flights arriving at ILM that month were on time 88.8% of the time (535 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 48%, air carrier 36% and national aviation system 14%.

On time 90.7%
Arrived 15+ minutes late 8.8%
Cancelled 0.4%
Diverted 0.2%

Every scheduled departure from ILM in December 2023, judged by arrival at the destination.

December 2023 against a year earlier, the airport's year and the nation

Measure	Dec 2023	Year earlier	ILM, 12 months to Jul 2026	All reported flights, Dec 2023
Departed on time	91.6%	—	78.3%	83.1%
Arrived on time	90.7%	—	78.2%	83.8%
Cancelled	0.4%	—	3.2%	0.4%
Average departure delay (late minutes only)	7.5 min	—	16.8 min	11.6 min
Scheduled departures a day	18	—	21	19,013
Scheduled departures	536	—	7,522	570,394

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OH PSA Airlines	160	30%	92.5%	0.0 min	0.0%
YX Republic Airline	100	19%	87.0%	-2.8 min	1.0%
AA American Airlines	99	18%	91.9%	-7.8 min	0.0%
9E Endeavor Air	73	14%	90.4%	-5.8 min	1.4%
DL Delta Air Lines	73	14%	91.8%	0.5 min	0.0%
MQ Envoy Air	31	6%	87.1%	-5.1 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ILM–CLT	Wilmington to Charlotte	188	92.0%	-3.5 min	0.0%
ILM–LGA	Wilmington to New York	101	89.1%	-5.1 min	2.0%
ILM–ATL	Wilmington to Atlanta	96	91.7%	-1.0 min	0.0%
ILM–DCA	Wilmington to Washington	71	93.0%	-1.6 min	0.0%
ILM–DFW	Wilmington to Dallas/Fort Worth	31	87.1%	-5.1 min	0.0%
ILM–EWR	Wilmington to Newark	30	80.0%	-0.2 min	0.0%
ILM–PHL	Wilmington to Philadelphia	14	92.9%	-2.1 min	0.0%
ILM–MIA	Wilmington to Miami	5	100.0%	-4.8 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 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2023	Minutes
Air carrier	36.2%	37.1%	1,337
Late-arriving aircraft	47.7%	38.8%	1,763
National Aviation System	13.9%	17.6%	512
Extreme weather	2.2%	6.2%	83
Security	0.0%	0.3%	0

3,695 delay minutes on 47 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 2023?

91.6% of 536 scheduled domestic departures left less than 15 minutes late, and 90.7% reached their destination on time. The national figures that month were 83.1% and 83.8%.

How does that compare with a year earlier?

December 2022 is outside the 36 months on file, or the airport had too few reported flights that month.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for December 2023; 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.