Raleigh-Durham International in April 2025

82.6%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 April 2025, reporting carriers scheduled 4,528 domestic departures from Raleigh-Durham International (RDU). 82.6% left less than 15 minutes late and 81.9% reached their destination on time; 0.7% were cancelled.

Nationally that month, 80.6% of flights departed on time and 79.5% arrived on time, so RDU departures were 2.0 points above the national departure figure.

A year earlier, in April 2024, the airport had 5,013 departures with 81.8% leaving on time: a change of +0.8 points, with flights down 10%.

Flights arriving at RDU that month were on time 78.9% of the time (4,533 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 44%, national aviation system 28% and air carrier 26%.

On time 81.9%
Arrived 15+ minutes late 17.2%
Cancelled 0.7%
Diverted 0.1%

Every scheduled departure from RDU in April 2025, judged by arrival at the destination.

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

Measure	Apr 2025	Apr 2024	RDU, 12 months to Jul 2026	All reported flights, Apr 2025
Departed on time	82.6%	81.8%	77.5%	80.6%
Arrived on time	81.9%	79.9%	77.1%	79.5%
Cancelled	0.7%	0.7%	2.3%	0.8%
Average departure delay (late minutes only)	13.4 min	15.1 min	17.6 min	14.1 min
Scheduled departures a day	151	167	152	19,465
Scheduled departures	4,528	5,013	55,461	583,950

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
AA American Airlines	945	21%	80.4%	7.1 min	0.6%
DL Delta Air Lines	926	20%	86.7%	1.7 min	0.5%
WN Southwest Airlines	768	17%	82.9%	1.6 min	0.7%
YX Republic Airline	634	14%	82.2%	0.0 min	0.5%
UA United Airlines	408	9%	82.1%	7.1 min	1.2%
F9 Frontier Airlines	274	6%	70.1%	12.9 min	1.1%
B6 JetBlue Airways	240	5%	86.3%	-6.6 min	0.4%
MQ Envoy Air	131	3%	77.1%	5.3 min	2.3%
OO SkyWest Airlines	61	1%	88.5%	-10.5 min	0.0%
OH PSA Airlines	59	1%	61.0%	21.7 min	0.0%
NK Spirit Airlines	44	1%	77.3%	8.5 min	0.0%
AS Alaska Airlines	38	1%	78.9%	2.6 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
RDU–ATL	Raleigh/Durham to Atlanta	367	86.1%	-2.2 min	1.4%
RDU–CLT	Raleigh/Durham to Charlotte	283	81.6%	4.3 min	0.0%
RDU–MIA	Raleigh/Durham to Miami	260	84.6%	4.8 min	1.2%
RDU–ORD	Raleigh/Durham to Chicago	258	84.5%	1.3 min	2.3%
RDU–MCO	Raleigh/Durham to Orlando	247	85.0%	-0.2 min	0.4%
RDU–BOS	Raleigh/Durham to Boston	242	86.8%	-6.5 min	0.4%
RDU–PHL	Raleigh/Durham to Philadelphia	219	72.1%	13.3 min	0.5%
RDU–LGA	Raleigh/Durham to New York	217	74.7%	9.3 min	0.0%
RDU–DFW	Raleigh/Durham to Dallas/Fort Worth	187	73.8%	19.3 min	1.6%
RDU–DCA	Raleigh/Durham to Washington	171	73.1%	9.3 min	0.0%
RDU–JFK	Raleigh/Durham to New York	170	76.5%	3.5 min	1.2%
RDU–BNA	Raleigh/Durham to Nashville	162	85.8%	-2.3 min	1.2%

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 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2025	Minutes
Air carrier	26.2%	32.7%	14,885
Late-arriving aircraft	44.0%	39.4%	24,963
National Aviation System	27.8%	22.2%	15,788
Extreme weather	2.0%	5.5%	1,148
Security	0.0%	0.2%	10

56,794 delay minutes on 781 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 RDU on time in April 2025?

82.6% of 4,528 scheduled domestic departures left less than 15 minutes late, and 81.9% reached their destination on time. The national figures that month were 80.6% and 79.5%.

How does that compare with a year earlier?

In April 2024, 81.8% of 5,013 departures left on time and 0.7% were cancelled, against 82.6% and 0.7% in April 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for April 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for RDU · methodology · corrections.