Wilmington International in April 2026

82.8%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 April 2026, reporting carriers scheduled 587 domestic departures from Wilmington International (ILM). 82.8% left less than 15 minutes late and 84.5% reached their destination on time; 1.2% were cancelled.

Nationally that month, 79.1% of flights departed on time and 78.9% arrived on time, so ILM departures were 3.7 points above the national departure figure.

A year earlier, in April 2025, the airport had 598 departures with 82.6% leaving on time: a change of +0.2 points, with flights down 2%.

Flights arriving at ILM that month were on time 81.3% of the time (587 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 52%, national aviation system 22% and air carrier 21%.

On time 84.5%
Arrived 15+ minutes late 13.8%
Cancelled 1.2%
Diverted 0.5%

Every scheduled departure from ILM in April 2026, judged by arrival at the destination.

April 2026 against a year earlier, the airport's year and the nation

Measure	Apr 2026	Apr 2025	ILM, 12 months to Jul 2026	All reported flights, Apr 2026
Departed on time	82.8%	82.6%	78.3%	79.1%
Arrived on time	84.5%	83.8%	78.2%	78.9%
Cancelled	1.2%	2.0%	3.2%	0.9%
Average departure delay (late minutes only)	9.9 min	16.4 min	16.8 min	14.5 min
Scheduled departures a day	20	20	21	19,931
Scheduled departures	587	598	7,522	597,919

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
YX Republic Airline	205	35%	82.0%	0.0 min	0.5%
AA American Airlines	172	29%	89.0%	-6.6 min	0.6%
OH PSA Airlines	84	14%	78.6%	1.1 min	3.6%
DL Delta Air Lines	76	13%	88.2%	-9.5 min	1.3%
MQ Envoy Air	48	8%	87.5%	-9.9 min	2.1%
B6 JetBlue Airways	2	0%	0.0%	36.5 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ILM–CLT	Wilmington to Charlotte	135	91.9%	-8.0 min	0.0%
ILM–LGA	Wilmington to New York	85	82.4%	4.7 min	1.2%
ILM–ATL	Wilmington to Atlanta	76	88.2%	-9.5 min	1.3%
ILM–DCA	Wilmington to Washington	61	75.4%	1.7 min	4.9%
ILM–DFW	Wilmington to Dallas/Fort Worth	60	81.7%	-0.4 min	1.7%
ILM–EWR	Wilmington to Newark	60	83.3%	-4.7 min	0.0%
ILM–ORD	Wilmington to Chicago	57	82.5%	-5.3 min	1.8%
ILM–BOS	Wilmington to Boston	28	67.9%	5.0 min	0.0%
ILM–MIA	Wilmington to Miami	22	95.5%	-14.0 min	0.0%
ILM–PHL	Wilmington to Philadelphia	3	100.0%	-26.3 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), April 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2026	Minutes
Air carrier	21.3%	33.5%	1,073
Late-arriving aircraft	52.0%	40.4%	2,620
National Aviation System	21.7%	21.0%	1,093
Extreme weather	5.0%	5.0%	254
Security	0.0%	0.1%	0

5,040 delay minutes on 81 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 April 2026?

82.8% of 587 scheduled domestic departures left less than 15 minutes late, and 84.5% reached their destination on time. The national figures that month were 79.1% and 78.9%.

How does that compare with a year earlier?

In April 2025, 82.6% of 598 departures left on time and 2.0% were cancelled, against 82.8% and 1.2% in April 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for April 2026; 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.