William P Hobby in October 2023

78.4%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 October 2023, reporting carriers scheduled 5,159 domestic departures from William P Hobby (HOU). 78.4% left less than 15 minutes late and 80.6% reached their destination on time; 0.9% were cancelled.

Nationally that month, 83.8% of flights departed on time and 84.0% arrived on time, so HOU departures were 5.4 points below the national departure figure.

Flights arriving at HOU that month were on time 80.2% of the time (5,160 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 45%, air carrier 30% and national aviation system 23%.

On time 80.6%
Arrived 15+ minutes late 18.3%
Cancelled 0.9%
Diverted 0.2%

Every scheduled departure from HOU in October 2023, judged by arrival at the destination.

October 2023 against a year earlier, the airport's year and the nation

Measure	Oct 2023	Year earlier	HOU, 12 months to Jul 2026	All reported flights, Oct 2023
Departed on time	78.4%	—	72.7%	83.8%
Arrived on time	80.6%	—	76.0%	84.0%
Cancelled	0.9%	—	0.9%	0.4%
Average departure delay (late minutes only)	11.7 min	—	15.0 min	11.0 min
Scheduled departures a day	172	—	148	19,966
Scheduled departures	5,159	—	53,894	598,968

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	4,753	92%	80.8%	4.1 min	0.8%
DL Delta Air Lines	144	3%	93.8%	-5.8 min	0.0%
OO SkyWest Airlines	131	3%	63.4%	13.7 min	6.9%
MQ Envoy Air	73	1%	68.5%	10.4 min	2.7%
G4 Allegiant Air	35	1%	74.3%	13.2 min	0.0%
F9 Frontier Airlines	23	0%	95.7%	-9.8 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
HOU–DAL	Houston to Dallas	356	82.6%	2.2 min	1.4%
HOU–ATL	Houston to Atlanta	310	87.7%	-0.9 min	0.0%
HOU–MSY	Houston to New Orleans	222	79.3%	5.7 min	0.9%
HOU–DEN	Houston to Denver	207	82.6%	4.0 min	1.0%
HOU–DFW	Houston to Dallas/Fort Worth	204	65.2%	12.5 min	5.4%
HOU–MCO	Houston to Orlando	188	80.9%	-0.3 min	1.6%
HOU–PHX	Houston to Phoenix	186	79.0%	2.1 min	1.6%
HOU–LAS	Houston to Las Vegas	168	83.9%	1.9 min	0.0%
HOU–AUS	Houston to Austin	160	75.0%	9.0 min	0.6%
HOU–BNA	Houston to Nashville	152	82.2%	1.9 min	1.3%
HOU–SAT	Houston to San Antonio	151	82.8%	4.8 min	1.3%
HOU–STL	Houston to St. Louis	148	83.1%	3.8 min	0.7%

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), October 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Oct 2023	Minutes
Air carrier	29.5%	41.3%	13,944
Late-arriving aircraft	44.6%	40.5%	21,056
National Aviation System	23.3%	14.4%	10,998
Extreme weather	2.5%	3.7%	1,158
Security	0.1%	0.2%	67

47,223 delay minutes on 946 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 October 2023?

78.4% of 5,159 scheduled domestic departures left less than 15 minutes late, and 80.6% reached their destination on time. The national figures that month were 83.8% and 84.0%.

How does that compare with a year earlier?

October 2022 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 October 2023; 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.