Washington Dulles International in February 2024

90.6%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 February 2024, reporting carriers scheduled 3,761 domestic departures from Washington Dulles International (IAD). 90.6% left less than 15 minutes late and 88.5% reached their destination on time; 0.3% were cancelled.

Nationally that month, 84.0% of flights departed on time and 83.4% arrived on time, so IAD departures were 6.6 points above the national departure figure.

Flights arriving at IAD that month were on time 87.5% of the time (3,762 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 38%, national aviation system 31% and late-arriving aircraft 27%.

On time 88.5%
Arrived 15+ minutes late 11.1%
Cancelled 0.3%
Diverted 0.1%

Every scheduled departure from IAD in February 2024, judged by arrival at the destination.

February 2024 against a year earlier, the airport's year and the nation

Measure	Feb 2024	Year earlier	IAD, 12 months to Jul 2026	All reported flights, Feb 2024
Departed on time	90.6%	—	82.6%	84.0%
Arrived on time	88.5%	—	80.1%	83.4%
Cancelled	0.3%	—	1.4%	0.6%
Average departure delay (late minutes only)	6.7 min	—	14.7 min	11.2 min
Scheduled departures a day	125	—	159	17,307
Scheduled departures	3,761	—	58,031	519,221

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
UA United Airlines	2,386	63%	87.1%	-3.7 min	0.3%
YX Republic Airline	635	17%	93.1%	-12.3 min	0.5%
DL Delta Air Lines	215	6%	94.9%	-14.5 min	0.0%
OO SkyWest Airlines	140	4%	90.7%	-10.4 min	1.4%
OH PSA Airlines	112	3%	88.4%	-6.2 min	0.0%
AS Alaska Airlines	81	2%	84.0%	-8.6 min	1.2%
9E Endeavor Air	61	2%	83.6%	-4.2 min	0.0%
AA American Airlines	58	2%	86.2%	-7.7 min	0.0%
WN Southwest Airlines	46	1%	76.1%	7.2 min	0.0%
G4 Allegiant Air	27	1%	92.6%	-11.0 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
IAD–ATL	Washington to Atlanta	206	95.1%	-15.5 min	0.5%
IAD–DEN	Washington to Denver	201	83.1%	5.1 min	0.0%
IAD–CLT	Washington to Charlotte	155	89.0%	-4.4 min	0.0%
IAD–SFO	Washington to San Francisco	153	79.7%	-0.4 min	1.3%
IAD–LAX	Washington to Los Angeles	146	80.8%	-1.5 min	0.7%
IAD–SAN	Washington to San Diego	143	86.0%	-1.4 min	0.7%
IAD–MCO	Washington to Orlando	139	84.2%	2.0 min	0.0%
IAD–DFW	Washington to Dallas/Fort Worth	136	83.8%	-1.4 min	0.0%
IAD–IAH	Washington to Houston	117	88.9%	-12.9 min	0.9%
IAD–ORD	Washington to Chicago	117	91.5%	-7.8 min	0.0%
IAD–BOS	Washington to Boston	115	92.2%	-3.3 min	0.0%
IAD–DTW	Washington to Detroit	108	93.5%	-13.1 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), February 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Feb 2024	Minutes
Air carrier	38.3%	35.9%	9,024
Late-arriving aircraft	26.5%	36.9%	6,251
National Aviation System	30.5%	21.7%	7,201
Extreme weather	4.7%	5.3%	1,115
Security	0.0%	0.3%	0

23,591 delay minutes on 416 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 IAD on time in February 2024?

90.6% of 3,761 scheduled domestic departures left less than 15 minutes late, and 88.5% reached their destination on time. The national figures that month were 84.0% and 83.4%.

How does that compare with a year earlier?

February 2023 is outside the 36 months on file, or the airport had too few reported flights that month.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for February 2024; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for IAD · methodology · corrections.