Raleigh-Durham International in September 2024

84.2%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 5,104 domestic departures from Raleigh-Durham International (RDU). 84.2% left less than 15 minutes late and 82.1% reached their destination on time; 1.0% were cancelled.

Nationally that month, 84.4% of flights departed on time and 83.9% arrived on time, so RDU departures were level with the national departure figure.

A year earlier, in September 2023, the airport had 5,255 departures with 79.4% leaving on time: a change of +4.8 points, with flights down 3%.

Flights arriving at RDU that month were on time 82.3% of the time (5,105 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 45%, air carrier 32% and national aviation system 20%.

On time 82.1%
Arrived 15+ minutes late 16.7%
Cancelled 1.0%
Diverted 0.3%

Every scheduled departure from RDU 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	RDU, 12 months to Jul 2026	All reported flights, Sep 2024
Departed on time	84.2%	79.4%	77.5%	84.4%
Arrived on time	82.1%	78.8%	77.1%	83.9%
Cancelled	1.0%	2.3%	2.3%	0.6%
Average departure delay (late minutes only)	13.2 min	17.0 min	17.6 min	10.6 min
Scheduled departures a day	170	175	152	19,421
Scheduled departures	5,104	5,255	55,461	582,622

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
DL Delta Air Lines	965	19%	87.0%	-3.7 min	0.4%
AA American Airlines	867	17%	77.6%	9.4 min	1.7%
WN Southwest Airlines	727	14%	87.3%	-0.9 min	0.1%
9E Endeavor Air	532	10%	84.6%	0.4 min	0.2%
YX Republic Airline	460	9%	79.8%	3.1 min	0.0%
F9 Frontier Airlines	435	9%	67.4%	11.2 min	5.1%
UA United Airlines	431	8%	88.4%	0.5 min	0.0%
B6 JetBlue Airways	276	5%	78.6%	11.0 min	0.0%
OO SkyWest Airlines	115	2%	81.7%	7.4 min	0.9%
MQ Envoy Air	112	2%	84.8%	-2.7 min	0.0%
OH PSA Airlines	98	2%	79.6%	35.0 min	5.1%
AS Alaska Airlines	60	1%	75.0%	24.0 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
RDU–ATL	Raleigh/Durham to Atlanta	409	84.1%	0.2 min	1.5%
RDU–LGA	Raleigh/Durham to New York	352	80.1%	0.7 min	0.0%
RDU–JFK	Raleigh/Durham to New York	330	87.0%	5.2 min	0.0%
RDU–ORD	Raleigh/Durham to Chicago	293	81.9%	3.6 min	0.7%
RDU–BOS	Raleigh/Durham to Boston	287	77.7%	4.3 min	0.3%
RDU–CLT	Raleigh/Durham to Charlotte	280	74.6%	7.1 min	4.3%
RDU–PHL	Raleigh/Durham to Philadelphia	226	73.0%	21.6 min	2.2%
RDU–DCA	Raleigh/Durham to Washington	220	68.2%	11.2 min	1.8%
RDU–MCO	Raleigh/Durham to Orlando	210	81.4%	0.1 min	1.9%
RDU–EWR	Raleigh/Durham to Newark	206	82.5%	3.6 min	0.0%
RDU–BNA	Raleigh/Durham to Nashville	204	84.3%	1.5 min	0.0%
RDU–MIA	Raleigh/Durham to Miami	190	82.1%	-1.0 min	1.6%

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 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Sep 2024	Minutes
Air carrier	31.5%	38.6%	20,149
Late-arriving aircraft	45.3%	38.4%	28,934
National Aviation System	19.6%	18.2%	12,550
Extreme weather	3.5%	4.8%	2,249
Security	0.0%	0.1%	15

63,897 delay minutes on 851 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 September 2024?

84.2% of 5,104 scheduled domestic departures left less than 15 minutes late, and 82.1% 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, 79.4% of 5,255 departures left on time and 2.3% were cancelled, against 84.2% and 1.0% 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 RDU · methodology · corrections.