Airport month record

LASNOV

Harry Reid International in November 2025

Departures: 14,443
Month: November 2025
National, same month: 79.4%
Carriers: 11

Historical statistics for November 2025, not live status or a forecast for this year’s November. For today’s conditions at LAS, see live FAA status.

LAS in November lands a B, level with the national rate of 79.4%. About one flight in five arrives 15 minutes late or worse, and those flights are late by about an hour on average. That is a workable record, not a spotless one. That rests on 14,443 flights, of which Spirit Airlines flew 674 at 87.4% on time.

Spirit Airlines is the most reliable of the nine carriers covered here at 87.4% on time across 674 flights.

On time

79.5%

Arrivals under 15 minutes late, of 14,171 completed departures

Avg delay

59 min

Across delayed arrivals only, not all flights

Cancelled

1.73%

Nationally in November: 2.49%

Whole year

77.9%

LAS across all twelve months

These figures cover 14,443 departures from Harry Reid International in November 2025. On time means an arrival less than 15 minutes after the scheduled gate time, the DOT's threshold, and the national comparison uses every US departure in the same month rather than the whole year.

Against the year

November next to LAS's other months

Against LAS's own year, November ran 2 points better than the twelve-month rate of 77.9%, which makes it number five of twelve months, best first. Cancellations are where November stands out: 1.73% of scheduled departures were called off, 2.0 times the airport's rate across the year. Either side of it, October ran 77.1% on time and December 79.9%, so this month sits in line with its neighbours.

LAS month by month
Month	Flights	On time	Avg delay	Cancelled	Grade
July 2025	15,733	72.9%	67 min	1.13%	C
August 2025	14,920	79.6%	59 min	0.50%	B+
September 2025	14,399	78.8%	66 min	0.53%	B+
October 2025	15,597	77.1%	62 min	0.31%	B+
November 2025 (this page)	14,443	79.5%	59 min	1.73%	B
December 2025	14,547	79.9%	59 min	0.60%	B+
January 2026	13,695	83.1%	65 min	1.86%	B
February 2026	12,886	83.1%	58 min	0.88%	B+
March 2026	15,169	78.3%	60 min	1.15%	B
April 2026	14,672	78.8%	54 min	0.40%	B+
May 2026	14,585	74.1%	60 min	0.67%	C+
June 2026	13,704	70.7%	61 min	0.77%	C+

Departure window

The best time of day to leave LAS in November

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 21 points, against 11 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

5am–8am2,331 flights91.3%
8am–11am2,932 flights85.1%
11am–2pm2,640 flights75.9%
2pm–5pm2,340 flights72.4%
5pm–8pm2,136 flights70.1%
8pm–5am2,064 flights80.4%

Scale runs 60% to 95%. Rows with fewer than 30 flights show a dash.

Book the early departure. Flights leaving between 5am–8am arrive on time 91.3% of the time, against 70.1% for the evening window. That is 21 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 8am–11am window is the busiest, with 2,932 flights scheduled in it.

Across the week, Wednesday is the strongest day at 85.6% on time and Monday the weakest at 69.4%. 16 points is a smaller lever than departure hour, but it is free.

Carrier by carrier

Which airlines ran best at LAS in November

The choice of carrier is not cosmetic here. Spirit Airlines arrives on time 87.4% of the time; Southwest Airlines manages 76.0%. Sample sizes sit next to every figure, because a two-point gap across 7,124 flights means less than a ten-point one.

Carriers at LAS in November 2025
Airline	Flights	On time	Avg delay	Cancelled	Grade
Southwest Airlines	7,124	76.0%	50 min	1.71%	B
United Airlines	1,312	79.2%	78 min	1.68%	B
Delta Air Lines	1,247	85.6%	71 min	1.12%	A
American Airlines	1,144	82.0%	77 min	2.45%	B
Frontier Airlines	968	80.3%	70 min	0.93%	B+
Spirit Airlines	674	87.4%	60 min	0.74%	A+
Allegiant Air	604	84.7%	61 min	2.48%	B
Alaska Airlines	487	84.6%	69 min	1.23%	B
SkyWest Airlines	409	81.3%	59 min	4.65%	B−
JetBlue Airwaysthin sample	329	89.1%	74 min	2.74%	A
Hawaiian Airlinesthin sample	145	72.9%	74 min	0.69%	C+

SkyWest Airlines cancels 4.7% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.

Route by route

Busiest routes out of LAS in November

Routes from LAS in November 2025
Route	Flights	On time	Avg delay	Cancelled	Grade
LAS to LAX · Los Angeles	705	76.9%	64 min	2.84%	B
LAS to DEN · Denver	591	81.2%	59 min	3.05%	B−
LAS to PHX · Phoenix	514	74.8%	67 min	4.09%	C−
LAS to SFO · San Francisco	500	62.3%	61 min	2.40%	D
LAS to SAN · San Diego	494	62.2%	51 min	4.05%	D−
LAS to SEA · Seattle	445	84.9%	64 min	1.80%	B
LAS to DFW · Dallas-Fort Worth	416	81.5%	69 min	3.37%	B−
LAS to ORD · Chicago	390	74.1%	91 min	2.56%	C
LAS to ATL · Atlanta	390	85.0%	72 min	0.51%	A+
LAS to SNA · Santa Anathin sample	358	79.5%	51 min	0.56%	B+
LAS to SMF · Sacramentothin sample	356	83.6%	45 min	1.97%	B
LAS to BUR · Burbankthin sample	352	81.3%	57 min	1.99%	B
LAS to RNO · Renothin sample	324	79.6%	61 min	1.23%	B
LAS to SJC · San Josethin sample	313	82.7%	50 min	0.32%	B+
LAS to IAH · Houstonthin sample	312	81.4%	58 min	0.00%	B+
LAS to JFK · New Yorkthin sample	304	84.2%	83 min	1.97%	B
LAS to SLC · Salt Lake Citythin sample	298	85.5%	56 min	3.02%	A−
LAS to DAL · Dallasthin sample	257	73.6%	44 min	3.50%	C−
LAS to OAK · Oaklandthin sample	246	76.1%	55 min	1.22%	B
LAS to AUS · Austinthin sample	243	72.8%	54 min	0.00%	C+
LAS to EWR · Newarkthin sample	240	82.1%	146 min	2.08%	B
LAS to DTW · Detroitthin sample	239	81.5%	49 min	0.42%	B+
LAS to PDX · Portlandthin sample	238	83.9%	65 min	0.84%	B+
LAS to ONT · Ontariothin sample	216	72.8%	56 min	4.63%	C−
LAS to SAT · San Antoniothin sample	197	82.7%	48 min	0.00%	B+

Delay causes

What held LAS up in November

One category carries most of the weight here. Late-arriving aircraft accounts for 44% of the 170,000 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

Late-arriving aircraft
44%
Carrier
28%
National Airspace System
27%
Extreme weather
1%
Security
0%

44% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 170,000 reported delay minutes here, that single category outweighs weather by 37 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 170,205 reported delay minutes.

Cancellations sit at 1.73% against a national 2.49%, which is ordinary. Diversions add another 0.15%.

6.2% of arrivals land an hour or more late, close to the national 7.8%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.

What to do with this

Flying from LAS in November

For a November trip through LAS: expect 79.5% on time and 1.73% cancelled, going by November 2025. The 5am–8am window was the strongest part of the day.

Harry Reid International (LAS), the whole year
LAS in July72.9%
LAS in August79.6%
LAS in September78.8%
LAS in October77.1%
LAS in December79.9%
LAS in January83.1%
LAS in February83.1%
LAS in March78.3%
LAS in April78.8%
LAS in May74.1%
LAS in June70.7%

Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures