William P Hobby in June 2026

60.2%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 June 2026, reporting carriers scheduled 4,514 domestic departures from William P Hobby (HOU). 60.2% left less than 15 minutes late and 63.0% reached their destination on time; 0.6% were cancelled.

Nationally that month, 72.2% of flights departed on time and 72.8% arrived on time, so HOU departures were 12.0 points below the national departure figure.

A year earlier, in June 2025, the airport had 4,932 departures with 64.3% leaving on time: a change of −4.1 points, with flights down 8%.

Flights arriving at HOU that month were on time 66.4% of the time (4,512 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 44%, air carrier 33% and national aviation system 17%.

On time 63.0%
Arrived 15+ minutes late 36.0%
Cancelled 0.6%
Diverted 0.4%

Every scheduled departure from HOU in June 2026, judged by arrival at the destination.

June 2026 against a year earlier, the airport's year and the nation

Measure	Jun 2026	Jun 2025	HOU, 12 months to Jul 2026	All reported flights, Jun 2026
Departed on time	60.2%	64.3%	72.7%	72.2%
Arrived on time	63.0%	66.6%	76.0%	72.8%
Cancelled	0.6%	1.5%	0.9%	1.6%
Average departure delay (late minutes only)	23.0 min	21.6 min	15.0 min	20.6 min
Scheduled departures a day	151	164	148	20,253
Scheduled departures	4,514	4,932	53,894	607,577

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	4,188	93%	62.4%	16.9 min	0.3%
DL Delta Air Lines	116	3%	80.2%	7.3 min	0.9%
MQ Envoy Air	91	2%	72.5%	8.6 min	6.6%
OO SkyWest Airlines	81	2%	54.3%	51.1 min	8.6%
G4 Allegiant Air	38	1%	68.4%	14.7 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
HOU–DAL	Houston to Dallas	324	66.4%	15.6 min	2.2%
HOU–ATL	Houston to Atlanta	232	71.6%	13.2 min	0.4%
HOU–DEN	Houston to Denver	202	63.4%	13.6 min	0.0%
HOU–MSY	Houston to New Orleans	192	76.6%	5.4 min	0.0%
HOU–MCO	Houston to Orlando	180	70.6%	8.0 min	0.6%
HOU–DFW	Houston to Dallas/Fort Worth	172	64.0%	28.4 min	7.6%
HOU–MDW	Houston to Chicago	169	49.7%	31.3 min	0.6%
HOU–LAS	Houston to Las Vegas	155	74.8%	11.3 min	0.0%
HOU–PHX	Houston to Phoenix	150	54.7%	22.4 min	0.0%
HOU–BNA	Houston to Nashville	143	63.6%	18.4 min	0.0%
HOU–STL	Houston to St. Louis	133	68.4%	12.6 min	0.0%
HOU–BWI	Houston to Baltimore	120	65.0%	9.7 min	1.7%

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), June 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Jun 2026	Minutes
Air carrier	33.4%	30.8%	30,228
Late-arriving aircraft	43.7%	42.1%	39,590
National Aviation System	16.5%	20.3%	14,958
Extreme weather	6.1%	6.7%	5,536
Security	0.2%	0.1%	222

90,534 delay minutes on 1,625 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 June 2026?

60.2% of 4,514 scheduled domestic departures left less than 15 minutes late, and 63.0% reached their destination on time. The national figures that month were 72.2% and 72.8%.

How does that compare with a year earlier?

In June 2025, 64.3% of 4,932 departures left on time and 1.5% were cancelled, against 60.2% and 0.6% in June 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for June 2026; 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.