Wilmington International in September 2023

83.6%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 September 2023, reporting carriers scheduled 666 domestic departures from Wilmington International (ILM). 83.6% left less than 15 minutes late and 83.6% reached their destination on time; 4.4% were cancelled.

Nationally that month, 80.5% of flights departed on time and 80.1% arrived on time, so ILM departures were 3.1 points above the national departure figure.

Flights arriving at ILM that month were on time 82.7% of the time (665 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 45%, air carrier 28% and national aviation system 19%.

On time 83.6%
Arrived 15+ minutes late 12.0%
Cancelled 4.4%
Diverted 0.0%

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

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

Measure	Sep 2023	Year earlier	ILM, 12 months to Jul 2026	All reported flights, Sep 2023
Departed on time	83.6%	—	78.3%	80.5%
Arrived on time	83.6%	—	78.2%	80.1%
Cancelled	4.4%	—	3.2%	1.2%
Average departure delay (late minutes only)	12.0 min	—	16.8 min	14.1 min
Scheduled departures a day	22	—	21	18,978
Scheduled departures	666	—	7,522	569,338

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
YX Republic Airline	170	26%	76.5%	5.0 min	8.8%
OH PSA Airlines	154	23%	86.4%	-0.1 min	1.9%
9E Endeavor Air	133	20%	83.5%	-4.6 min	6.8%
AA American Airlines	111	17%	87.4%	6.6 min	0.0%
DL Delta Air Lines	57	9%	94.7%	-2.1 min	0.0%
MQ Envoy Air	41	6%	78.0%	0.9 min	4.9%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ILM–CLT	Wilmington to Charlotte	185	90.3%	1.8 min	0.5%
ILM–LGA	Wilmington to New York	158	78.5%	-0.7 min	10.1%
ILM–ATL	Wilmington to Atlanta	113	94.7%	-6.2 min	0.9%
ILM–DCA	Wilmington to Washington	60	75.0%	15.5 min	1.7%
ILM–EWR	Wilmington to Newark	60	78.3%	-2.3 min	8.3%
ILM–BOS	Wilmington to Boston	32	62.5%	21.6 min	9.4%
ILM–DFW	Wilmington to Dallas/Fort Worth	28	82.1%	3.5 min	0.0%
ILM–PHL	Wilmington to Philadelphia	25	76.0%	-5.1 min	8.0%
ILM–ORD	Wilmington to Chicago	5	100.0%	-19.4 min	0.0%

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), September 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Sep 2023	Minutes
Air carrier	27.9%	36.4%	2,072
Late-arriving aircraft	45.0%	38.3%	3,338
National Aviation System	19.0%	19.9%	1,410
Extreme weather	8.0%	5.1%	597
Security	0.0%	0.2%	0

7,417 delay minutes on 80 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 September 2023?

83.6% of 666 scheduled domestic departures left less than 15 minutes late, and 83.6% reached their destination on time. The national figures that month were 80.5% and 80.1%.

How does that compare with a year earlier?

September 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 September 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.