William P Hobby in March 2024

77.1%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 March 2024, reporting carriers scheduled 4,935 domestic departures from William P Hobby (HOU). 77.1% left less than 15 minutes late and 80.4% reached their destination on time; 1.0% were cancelled.

Nationally that month, 78.5% of flights departed on time and 78.3% arrived on time, so HOU departures were 1.4 points below the national departure figure.

Flights arriving at HOU that month were on time 78.4% of the time (4,934 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 51%, air carrier 25% and national aviation system 21%.

On time 80.4%
Arrived 15+ minutes late 18.5%
Cancelled 1.0%
Diverted 0.1%

Every scheduled departure from HOU in March 2024, judged by arrival at the destination.

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

Measure	Mar 2024	Year earlier	HOU, 12 months to Jul 2026	All reported flights, Mar 2024
Departed on time	77.1%	—	72.7%	78.5%
Arrived on time	80.4%	—	76.0%	78.3%
Cancelled	1.0%	—	0.9%	0.9%
Average departure delay (late minutes only)	12.8 min	—	15.0 min	15.7 min
Scheduled departures a day	165	—	148	19,726
Scheduled departures	4,935	—	53,894	591,767

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	4,564	92%	80.6%	2.9 min	1.0%
MQ Envoy Air	186	4%	75.8%	7.6 min	2.7%
DL Delta Air Lines	119	2%	86.6%	-4.6 min	0.0%
F9 Frontier Airlines	34	1%	61.8%	19.0 min	5.9%
G4 Allegiant Air	32	1%	78.1%	9.3 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
HOU–DAL	Houston to Dallas	351	82.1%	-0.8 min	1.7%
HOU–ATL	Houston to Atlanta	276	86.2%	-3.4 min	0.7%
HOU–DEN	Houston to Denver	254	79.9%	0.6 min	3.1%
HOU–MSY	Houston to New Orleans	203	84.2%	2.4 min	0.5%
HOU–DFW	Houston to Dallas/Fort Worth	186	75.8%	7.6 min	2.7%
HOU–MCO	Houston to Orlando	177	74.6%	10.7 min	4.5%
HOU–PHX	Houston to Phoenix	171	78.9%	5.4 min	0.6%
HOU–LAS	Houston to Las Vegas	160	76.3%	8.3 min	0.0%
HOU–SAT	Houston to San Antonio	150	78.0%	5.3 min	0.0%
HOU–AUS	Houston to Austin	148	81.1%	2.5 min	0.0%
HOU–BNA	Houston to Nashville	148	86.5%	1.1 min	0.0%
HOU–MDW	Houston to Chicago	138	83.3%	0.3 min	1.4%

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), March 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Mar 2024	Minutes
Air carrier	24.8%	32.1%	12,415
Late-arriving aircraft	51.4%	42.1%	25,698
National Aviation System	21.1%	21.4%	10,574
Extreme weather	1.5%	4.2%	758
Security	1.2%	0.2%	576

50,021 delay minutes on 911 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 HOU on time in March 2024?

77.1% of 4,935 scheduled domestic departures left less than 15 minutes late, and 80.4% reached their destination on time. The national figures that month were 78.5% and 78.3%.

How does that compare with a year earlier?

March 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 March 2024; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for HOU · methodology · corrections.