Wilmington International in July 2025

71.1%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 July 2025, reporting carriers scheduled 768 domestic departures from Wilmington International (ILM). 71.1% left less than 15 minutes late and 69.0% reached their destination on time; 4.9% were cancelled.

Nationally that month, 69.7% of flights departed on time and 69.0% arrived on time, so ILM departures were 1.4 points above the national departure figure.

A year earlier, in July 2024, the airport had 860 departures with 69.0% leaving on time: a change of +2.1 points, with flights down 11%.

Flights arriving at ILM that month were on time 67.3% of the time (768 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 42%, national aviation system 23% and extreme weather 20%.

On time 69.0%
Arrived 15+ minutes late 25.4%
Cancelled 4.9%
Diverted 0.7%

Every scheduled departure from ILM in July 2025, judged by arrival at the destination.

July 2025 against a year earlier, the airport's year and the nation

Measure	Jul 2025	Jul 2024	ILM, 12 months to Jul 2026	All reported flights, Jul 2025
Departed on time	71.1%	69.0%	78.3%	69.7%
Arrived on time	69.0%	66.7%	78.2%	69.0%
Cancelled	4.9%	5.0%	3.2%	2.5%
Average departure delay (late minutes only)	22.8 min	28.7 min	16.8 min	24.3 min
Scheduled departures a day	26	29	21	21,048
Scheduled departures	768	860	7,522	631,428

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
AA American Airlines	197	26%	73.6%	8.1 min	2.0%
MQ Envoy Air	130	17%	75.4%	5.1 min	1.5%
YX Republic Airline	129	17%	58.1%	34.9 min	11.6%
DL Delta Air Lines	127	17%	80.3%	6.6 min	1.6%
OH PSA Airlines	119	15%	57.1%	33.3 min	10.9%
OO SkyWest Airlines	35	5%	45.7%	23.0 min	2.9%
B6 JetBlue Airways	31	4%	83.9%	3.3 min	3.2%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ILM–CLT	Wilmington to Charlotte	150	80.0%	2.8 min	2.0%
ILM–ATL	Wilmington to Atlanta	119	81.5%	5.0 min	1.7%
ILM–ORD	Wilmington to Chicago	105	46.7%	27.1 min	2.9%
ILM–DCA	Wilmington to Washington	88	44.3%	54.0 min	12.5%
ILM–LGA	Wilmington to New York	84	64.3%	36.6 min	15.5%
ILM–BOS	Wilmington to Boston	73	75.3%	9.6 min	4.1%
ILM–DFW	Wilmington to Dallas/Fort Worth	71	78.9%	-2.1 min	1.4%
ILM–MIA	Wilmington to Miami	35	80.0%	5.1 min	0.0%
ILM–PHL	Wilmington to Philadelphia	31	83.9%	-4.5 min	6.5%
ILM–MSP	Wilmington to Minneapolis	8	62.5%	29.6 min	0.0%
ILM–DEN	Wilmington to Denver	4	25.0%	27.7 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), July 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Jul 2025	Minutes
Air carrier	16.3%	31.1%	2,755
Late-arriving aircraft	41.6%	40.8%	7,055
National Aviation System	22.5%	20.7%	3,808
Extreme weather	19.5%	7.3%	3,298
Security	0.2%	0.1%	26

16,942 delay minutes on 195 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 July 2025?

71.1% of 768 scheduled domestic departures left less than 15 minutes late, and 69.0% reached their destination on time. The national figures that month were 69.7% and 69.0%.

How does that compare with a year earlier?

In July 2024, 69.0% of 860 departures left on time and 5.0% were cancelled, against 71.1% and 4.9% in July 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for July 2025; 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.