William P Hobby in July 2024

56.5%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 July 2024, reporting carriers scheduled 5,229 domestic departures from William P Hobby (HOU). 56.5% left less than 15 minutes late and 63.1% reached their destination on time; 4.5% were cancelled.

Nationally that month, 68.5% of flights departed on time and 68.1% arrived on time, so HOU departures were 12.0 points below the national departure figure.

Flights arriving at HOU that month were on time 62.0% of the time (5,230 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 50%, air carrier 28% and national aviation system 12%.

On time 63.1%
Arrived 15+ minutes late 32.2%
Cancelled 4.5%
Diverted 0.2%

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

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

Measure	Jul 2024	Year earlier	HOU, 12 months to Jul 2026	All reported flights, Jul 2024
Departed on time	56.5%	—	72.7%	68.5%
Arrived on time	63.1%	—	76.0%	68.1%
Cancelled	4.5%	—	0.9%	2.9%
Average departure delay (late minutes only)	28.0 min	—	15.0 min	24.9 min
Scheduled departures a day	174	—	148	21,154
Scheduled departures	5,229	—	53,894	634,613

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	4,771	91%	63.6%	17.2 min	3.9%
DL Delta Air Lines	146	3%	61.0%	38.9 min	10.3%
MQ Envoy Air	142	3%	59.2%	16.8 min	9.2%
OH PSA Airlines	85	2%	54.1%	55.3 min	11.8%
F9 Frontier Airlines	43	1%	65.1%	13.1 min	11.6%
G4 Allegiant Air	42	1%	47.6%	96.1 min	4.8%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
HOU–DAL	Houston to Dallas	346	68.8%	13.3 min	4.6%
HOU–ATL	Houston to Atlanta	277	61.4%	32.8 min	7.2%
HOU–DEN	Houston to Denver	253	72.7%	7.2 min	5.1%
HOU–DFW	Houston to Dallas/Fort Worth	227	57.3%	30.8 min	10.1%
HOU–PHX	Houston to Phoenix	199	61.8%	19.2 min	5.0%
HOU–MCO	Houston to Orlando	193	68.4%	16.6 min	3.6%
HOU–LAS	Houston to Las Vegas	187	61.0%	19.7 min	3.2%
HOU–MSY	Houston to New Orleans	178	69.7%	13.6 min	2.8%
HOU–MDW	Houston to Chicago	170	61.8%	19.5 min	5.3%
HOU–BNA	Houston to Nashville	146	67.1%	8.2 min	4.1%
HOU–STL	Houston to St. Louis	143	72.7%	6.5 min	4.2%
HOU–SAT	Houston to San Antonio	138	52.9%	19.9 min	4.3%

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), July 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Jul 2024	Minutes
Air carrier	28.1%	36.6%	33,138
Late-arriving aircraft	50.4%	42.7%	59,319
National Aviation System	12.1%	16.0%	14,212
Extreme weather	9.2%	4.6%	10,813
Security	0.3%	0.1%	315

117,797 delay minutes on 1,684 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 July 2024?

56.5% of 5,229 scheduled domestic departures left less than 15 minutes late, and 63.1% reached their destination on time. The national figures that month were 68.5% and 68.1%.

How does that compare with a year earlier?

July 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 July 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.