Ronald Reagan Washington National in September 2024

85.8%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 September 2024, reporting carriers scheduled 11,546 domestic departures from Ronald Reagan Washington National (DCA). 85.8% left less than 15 minutes late and 84.6% reached their destination on time; 0.7% were cancelled.

Nationally that month, 84.4% of flights departed on time and 83.9% arrived on time, so DCA departures were 1.4 points above the national departure figure.

A year earlier, in September 2023, the airport had 11,513 departures with 80.2% leaving on time: a change of +5.6 points, with flights up 0%.

Flights arriving at DCA that month were on time 84.1% of the time (11,547 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 49%, air carrier 28% and national aviation system 20%.

On time 84.6%
Arrived 15+ minutes late 14.5%
Cancelled 0.7%
Diverted 0.2%

Every scheduled departure from DCA 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	DCA, 12 months to Jul 2026	All reported flights, Sep 2024
Departed on time	85.8%	80.2%	70.9%	84.4%
Arrived on time	84.6%	80.3%	70.1%	83.9%
Cancelled	0.7%	2.4%	3.6%	0.6%
Average departure delay (late minutes only)	10.2 min	15.2 min	21.2 min	10.6 min
Scheduled departures a day	385	384	390	19,421
Scheduled departures	11,546	11,513	142,173	582,622

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OH PSA Airlines	2,927	25%	78.3%	7.2 min	1.7%
YX Republic Airline	2,299	20%	89.4%	-5.5 min	0.2%
AA American Airlines	2,287	20%	85.2%	-1.7 min	0.5%
WN Southwest Airlines	1,290	11%	87.1%	-2.7 min	0.6%
DL Delta Air Lines	740	6%	87.6%	-1.3 min	0.0%
B6 JetBlue Airways	663	6%	83.3%	-0.7 min	0.2%
UA United Airlines	515	4%	86.0%	-0.5 min	1.0%
MQ Envoy Air	421	4%	84.1%	2.5 min	0.5%
9E Endeavor Air	167	1%	86.8%	0.3 min	0.6%
AS Alaska Airlines	147	1%	83.7%	-5.8 min	0.7%
F9 Frontier Airlines	90	1%	87.8%	1.7 min	1.1%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
DCA–BOS	Washington to Boston	834	83.7%	-0.9 min	0.0%
DCA–ATL	Washington to Atlanta	558	84.9%	3.8 min	0.7%
DCA–ORD	Washington to Chicago	524	86.8%	-0.4 min	0.0%
DCA–MCO	Washington to Orlando	371	88.9%	-5.7 min	0.0%
DCA–LGA	Washington to New York	356	89.9%	-2.9 min	0.0%
DCA–BNA	Washington to Nashville	343	82.2%	1.2 min	0.3%
DCA–CLT	Washington to Charlotte	297	81.1%	8.1 min	0.7%
DCA–DFW	Washington to Dallas/Fort Worth	297	88.9%	-3.9 min	0.3%
DCA–MIA	Washington to Miami	294	85.4%	-4.3 min	0.3%
DCA–DTW	Washington to Detroit	227	85.0%	-0.6 min	0.9%
DCA–PVD	Washington to Providence	223	88.8%	-0.6 min	0.4%
DCA–RDU	Washington to Raleigh/Durham	220	82.7%	2.8 min	1.8%

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	27.5%	38.6%	30,747
Late-arriving aircraft	48.6%	38.4%	54,404
National Aviation System	20.3%	18.2%	22,717
Extreme weather	3.5%	4.8%	3,942
Security	0.1%	0.1%	84

111,894 delay minutes on 1,676 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 DCA on time in September 2024?

85.8% of 11,546 scheduled domestic departures left less than 15 minutes late, and 84.6% 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, 80.2% of 11,513 departures left on time and 2.4% were cancelled, against 85.8% and 0.7% 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 DCA · methodology · corrections.