Harry Reid International in November 2025

76.7%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 November 2025, reporting carriers scheduled 14,443 domestic departures from Harry Reid International (LAS). 76.7% left less than 15 minutes late and 78.0% reached their destination on time; 1.7% were cancelled.

Nationally that month, 78.1% of flights departed on time and 77.3% arrived on time, so LAS departures were 1.4 points below the national departure figure.

A year earlier, in November 2024, the airport had 15,733 departures with 83.6% leaving on time: a change of −6.9 points, with flights down 8%.

Flights arriving at LAS that month were on time 78.7% of the time (14,437 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 44%, air carrier 28% and national aviation system 27%.

On time 78.0%
Arrived 15+ minutes late 20.1%
Cancelled 1.7%
Diverted 0.2%

Every scheduled departure from LAS in November 2025, judged by arrival at the destination.

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

Measure	Nov 2025	Nov 2024	LAS, 12 months to Jul 2026	All reported flights, Nov 2025
Departed on time	76.7%	83.6%	73.8%	78.1%
Arrived on time	78.0%	86.5%	76.8%	77.3%
Cancelled	1.7%	0.2%	0.9%	2.5%
Average departure delay (late minutes only)	14.0 min	9.7 min	16.3 min	15.6 min
Scheduled departures a day	481	524	474	19,018
Scheduled departures	14,443	15,733	172,932	570,550

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	7,124	49%	74.6%	6.4 min	1.7%
UA United Airlines	1,312	9%	77.8%	7.1 min	1.7%
DL Delta Air Lines	1,247	9%	84.6%	-1.7 min	1.1%
AA American Airlines	1,144	8%	79.8%	3.1 min	2.4%
F9 Frontier Airlines	968	7%	79.4%	1.1 min	0.9%
NK Spirit Airlines	674	5%	86.8%	-2.4 min	0.7%
G4 Allegiant Air	604	4%	82.3%	0.1 min	2.5%
AS Alaska Airlines	487	3%	83.4%	0.6 min	1.2%
OO SkyWest Airlines	409	3%	77.5%	2.1 min	4.6%
B6 JetBlue Airways	329	2%	86.6%	-4.9 min	2.7%
HA Hawaiian Airlines	145	1%	72.4%	13.8 min	0.7%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
LAS–LAX	Las Vegas to Los Angeles	705	74.8%	8.0 min	2.8%
LAS–DEN	Las Vegas to Denver	591	78.7%	2.6 min	3.0%
LAS–PHX	Las Vegas to Phoenix	514	71.8%	10.2 min	4.1%
LAS–SFO	Las Vegas to San Francisco	500	60.8%	17.1 min	2.4%
LAS–SAN	Las Vegas to San Diego	494	59.7%	16.7 min	4.0%
LAS–SEA	Las Vegas to Seattle	445	83.4%	-2.8 min	1.8%
LAS–DFW	Las Vegas to Dallas/Fort Worth	416	78.4%	2.1 min	3.4%
LAS–ATL	Las Vegas to Atlanta	390	84.4%	1.0 min	0.5%
LAS–ORD	Las Vegas to Chicago	390	71.8%	13.9 min	2.6%
LAS–SNA	Las Vegas to Santa Ana	358	79.1%	3.1 min	0.6%
LAS–SMF	Las Vegas to Sacramento	356	81.7%	-2.6 min	2.0%
LAS–BUR	Las Vegas to Burbank	352	79.0%	3.6 min	2.0%

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), November 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Nov 2025	Minutes
Air carrier	28.1%	30.2%	47,752
Late-arriving aircraft	43.9%	38.3%	74,773
National Aviation System	26.8%	26.7%	45,639
Extreme weather	1.2%	4.6%	2,016
Security	0.0%	0.1%	25

170,205 delay minutes on 2,907 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 LAS on time in November 2025?

76.7% of 14,443 scheduled domestic departures left less than 15 minutes late, and 78.0% reached their destination on time. The national figures that month were 78.1% and 77.3%.

How does that compare with a year earlier?

In November 2024, 83.6% of 15,733 departures left on time and 0.2% were cancelled, against 76.7% and 1.7% in November 2025.

Provenance

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