Lubbock Preston Smith International in September 2025

84.7%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 September 2025, reporting carriers scheduled 561 domestic departures from Lubbock Preston Smith International (LBB). 84.7% left less than 15 minutes late and 82.5% reached their destination on time; 0.9% were cancelled.

Nationally that month, 83.1% of flights departed on time and 82.8% arrived on time, so LBB departures were 1.6 points above the national departure figure.

A year earlier, in September 2024, the airport had 515 departures with 88.5% leaving on time: a change of −3.8 points, with flights up 9%.

Flights arriving at LBB that month were on time 81.9% of the time (562 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 40%, air carrier 31% and national aviation system 20%.

On time 82.5%
Arrived 15+ minutes late 16.0%
Cancelled 0.9%
Diverted 0.5%

Every scheduled departure from LBB in September 2025, judged by arrival at the destination.

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

Measure	Sep 2025	Sep 2024	LBB, 12 months to Jul 2026	All reported flights, Sep 2025
Departed on time	84.7%	88.5%	81.3%	83.1%
Arrived on time	82.5%	87.2%	81.1%	82.8%
Cancelled	0.9%	0.0%	1.7%	0.5%
Average departure delay (late minutes only)	16.1 min	5.9 min	16.6 min	12.2 min
Scheduled departures a day	19	17	18	18,748
Scheduled departures	561	515	6,557	562,439

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	214	38%	88.3%	-3.0 min	0.5%
MQ Envoy Air	178	32%	84.3%	5.3 min	0.6%
OO SkyWest Airlines	113	20%	74.3%	15.3 min	0.0%
AA American Airlines	56	10%	71.4%	22.5 min	5.4%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
LBB–DFW	Lubbock to Dallas/Fort Worth	265	80.8%	8.9 min	1.5%
LBB–DAL	Lubbock to Dallas	129	88.4%	-3.5 min	0.8%
LBB–DEN	Lubbock to Denver	77	72.7%	14.6 min	0.0%
LBB–LAS	Lubbock to Las Vegas	30	83.3%	3.4 min	0.0%
LBB–AUS	Lubbock to Austin	26	100.0%	-11.2 min	0.0%
LBB–PHX	Lubbock to Phoenix	26	84.6%	15.3 min	0.0%
LBB–HOU	Lubbock to Houston	8	75.0%	2.8 min	0.0%

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), September 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Sep 2025	Minutes
Air carrier	31.3%	34.3%	2,734
Late-arriving aircraft	40.0%	37.4%	3,496
National Aviation System	20.0%	22.6%	1,746
Extreme weather	8.8%	5.6%	772
Security	0.0%	0.1%	0

8,748 delay minutes on 90 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 LBB on time in September 2025?

84.7% of 561 scheduled domestic departures left less than 15 minutes late, and 82.5% reached their destination on time. The national figures that month were 83.1% and 82.8%.

How does that compare with a year earlier?

In September 2024, 88.5% of 515 departures left on time and 0.0% were cancelled, against 84.7% and 0.9% in September 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for September 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for LBB · methodology · corrections.