Wilmington International in September 2024

84.9%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 September 2024, reporting carriers scheduled 715 domestic departures from Wilmington International (ILM). 84.9% left less than 15 minutes late and 85.3% reached their destination on time; 1.4% were cancelled.

Nationally that month, 84.4% of flights departed on time and 83.9% arrived on time, so ILM departures were 0.5 points above the national departure figure.

A year earlier, in September 2023, the airport had 666 departures with 83.6% leaving on time: a change of +1.3 points, with flights up 7%.

Flights arriving at ILM that month were on time 83.8% of the time (716 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 46%, air carrier 23% and national aviation system 17%.

On time 85.3%
Arrived 15+ minutes late 13.1%
Cancelled 1.4%
Diverted 0.1%

Every scheduled departure from ILM in September 2024, judged by arrival at the destination.

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

Measure	Sep 2024	Sep 2023	ILM, 12 months to Jul 2026	All reported flights, Sep 2024
Departed on time	84.9%	83.6%	78.3%	84.4%
Arrived on time	85.3%	83.6%	78.2%	83.9%
Cancelled	1.4%	4.4%	3.2%	0.6%
Average departure delay (late minutes only)	10.0 min	12.0 min	16.8 min	10.6 min
Scheduled departures a day	24	22	21	19,421
Scheduled departures	715	666	7,522	582,622

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
AA American Airlines	148	21%	78.4%	7.4 min	2.0%
9E Endeavor Air	123	17%	91.1%	-6.6 min	0.0%
OH PSA Airlines	123	17%	82.9%	0.8 min	2.4%
MQ Envoy Air	122	17%	82.0%	2.1 min	1.6%
YX Republic Airline	118	17%	89.8%	-2.7 min	0.0%
DL Delta Air Lines	81	11%	91.4%	-5.3 min	2.5%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ILM–CLT	Wilmington to Charlotte	239	79.5%	6.4 min	2.5%
ILM–LGA	Wilmington to New York	164	87.2%	-2.6 min	0.0%
ILM–ATL	Wilmington to Atlanta	118	93.2%	-6.6 min	1.7%
ILM–DCA	Wilmington to Washington	60	86.7%	-2.0 min	3.3%
ILM–DFW	Wilmington to Dallas/Fort Worth	57	91.2%	-3.9 min	0.0%
ILM–BOS	Wilmington to Boston	31	67.7%	10.3 min	0.0%
ILM–PHL	Wilmington to Philadelphia	30	93.3%	-12.6 min	0.0%
ILM–MIA	Wilmington to Miami	7	85.7%	6.0 min	0.0%
ILM–ORD	Wilmington to Chicago	6	83.3%	-6.3 min	0.0%
ILM–MSP	Wilmington to Minneapolis	3	100.0%	-11.7 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), September 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Sep 2024	Minutes
Air carrier	23.3%	38.6%	1,533
Late-arriving aircraft	46.3%	38.4%	3,051
National Aviation System	17.3%	18.2%	1,137
Extreme weather	13.1%	4.8%	866
Security	0.0%	0.1%	0

6,587 delay minutes on 94 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 2024?

84.9% of 715 scheduled domestic departures left less than 15 minutes late, and 85.3% reached their destination on time. The national figures that month were 84.4% and 83.9%.

How does that compare with a year earlier?

In September 2023, 83.6% of 666 departures left on time and 4.4% were cancelled, against 84.9% and 1.4% in September 2024.

Provenance

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