William P Hobby in October 2025

75.9%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 2025, reporting carriers scheduled 4,887 domestic departures from William P Hobby (HOU). 75.9% left less than 15 minutes late and 77.8% reached their destination on time; 0.2% were cancelled.

Nationally that month, 80.0% of flights departed on time and 79.1% arrived on time, so HOU departures were 4.1 points below the national departure figure.

A year earlier, in October 2024, the airport had 4,885 departures with 83.2% leaving on time: a change of −7.3 points, with flights up 0%.

Flights arriving at HOU that month were on time 79.7% of the time (4,883 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 43%, air carrier 40% and national aviation system 15%.

On time 77.8%
Arrived 15+ minutes late 21.9%
Cancelled 0.2%
Diverted 0.0%

Every scheduled departure from HOU in October 2025, judged by arrival at the destination.

October 2025 against a year earlier, the airport's year and the nation

Measure	Oct 2025	Oct 2024	HOU, 12 months to Jul 2026	All reported flights, Oct 2025
Departed on time	75.9%	83.2%	72.7%	80.0%
Arrived on time	77.8%	86.3%	76.0%	79.1%
Cancelled	0.2%	0.9%	0.9%	0.5%
Average departure delay (late minutes only)	13.4 min	9.3 min	15.0 min	13.9 min
Scheduled departures a day	163	163	148	20,195
Scheduled departures	4,887	4,885	53,894	605,844

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	4,550	93%	77.4%	7.6 min	0.2%
MQ Envoy Air	152	3%	88.8%	1.4 min	0.0%
DL Delta Air Lines	124	3%	84.7%	9.3 min	0.8%
OO SkyWest Airlines	43	1%	62.8%	15.8 min	2.3%
G4 Allegiant Air	18	0%	77.8%	14.4 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
HOU–DAL	Houston to Dallas	353	78.8%	4.7 min	1.4%
HOU–ATL	Houston to Atlanta	256	84.4%	8.1 min	0.4%
HOU–MSY	Houston to New Orleans	205	85.4%	2.2 min	0.0%
HOU–DEN	Houston to Denver	198	75.3%	7.5 min	0.5%
HOU–DFW	Houston to Dallas/Fort Worth	195	83.1%	4.5 min	0.5%
HOU–LAS	Houston to Las Vegas	192	68.8%	12.9 min	0.0%
HOU–PHX	Houston to Phoenix	192	72.4%	10.9 min	0.0%
HOU–MCO	Houston to Orlando	175	79.4%	9.0 min	0.0%
HOU–BNA	Houston to Nashville	154	76.0%	12.6 min	0.0%
HOU–MDW	Houston to Chicago	154	79.2%	4.8 min	0.0%
HOU–AUS	Houston to Austin	144	76.4%	5.0 min	0.0%
HOU–SAT	Houston to San Antonio	140	84.3%	4.1 min	0.0%

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 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Oct 2025	Minutes
Air carrier	40.1%	34.0%	21,636
Late-arriving aircraft	43.4%	39.7%	23,392
National Aviation System	14.6%	22.9%	7,853
Extreme weather	1.8%	3.3%	960
Security	0.2%	0.1%	114

53,955 delay minutes on 1,070 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 2025?

75.9% of 4,887 scheduled domestic departures left less than 15 minutes late, and 77.8% reached their destination on time. The national figures that month were 80.0% and 79.1%.

How does that compare with a year earlier?

In October 2024, 83.2% of 4,885 departures left on time and 0.9% were cancelled, against 75.9% and 0.2% in October 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for October 2025; 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.