Airport month record

LAXAUG

Los Angeles International in August 2025

Departures: 16,493
Month: August 2025
National, same month: 77.4%
Carriers: 11

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

LAX in August lands a B+, 5 points better than the national rate of 77.4%. About one flight in six arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That is a workable record, not a spotless one. That rests on 16,493 flights, of which Spirit Airlines flew 604 at 88.0% on time.

Spirit Airlines is the most reliable of the nine carriers covered here at 88.0% on time across 604 flights.

On time

82.5%

Arrivals under 15 minutes late, of 16,353 completed departures

Avg delay

73 min

Across delayed arrivals only, not all flights

Cancelled

0.53%

Nationally in August: 1.08%

Whole year

80.4%

LAX across all twelve months

These figures cover 16,493 departures from Los Angeles International in August 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

August next to LAX's other months

Against LAX's own year, August ran 2 points better than the twelve-month rate of 80.4%, which makes it number three of twelve months, best first. Cancellations were unusually low for LAX in August, at 0.53% against 0.94% across the year. Either side of it, July ran 77.5% on time and September 85.8%, so this month sits in line with its neighbours.

LAX month by month
Month	Flights	On time	Avg delay	Cancelled	Grade
July 2025	17,104	77.5%	78 min	1.20%	B
August 2025 (this page)	16,493	82.5%	73 min	0.53%	B+
September 2025	15,262	85.8%	66 min	0.28%	A+
October 2025	16,122	83.5%	70 min	0.31%	B+
November 2025	15,422	79.7%	67 min	1.78%	B
December 2025	16,050	77.7%	71 min	0.88%	B+
January 2026	14,815	81.2%	76 min	2.17%	B
February 2026	13,687	80.9%	69 min	1.42%	B
March 2026	16,088	77.7%	65 min	1.29%	B
April 2026	15,732	81.5%	62 min	0.44%	B+
May 2026	16,317	80.0%	64 min	0.54%	B+
June 2026	16,664	77.0%	69 min	0.61%	B+

Departure window

The best time of day to leave LAX in August

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 16 points, against 19 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

5am–8am2,073 flights92.1%
8am–11am4,124 flights85.4%
11am–2pm2,600 flights80.0%
2pm–5pm2,402 flights76.3%
5pm–8pm2,352 flights78.0%
8pm–5am2,942 flights82.8%

Scale runs 70% to 100%. Rows with fewer than 30 flights show a dash.

Book the early departure. Flights leaving between 5am–8am arrive on time 92.1% of the time, against 76.3% for the afternoon window. That is 16 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 4,124 flights scheduled in it.

Across the week, Tuesday is the strongest day at 88.6% on time and Sunday the weakest at 79.6%. 9 points is a smaller lever than departure hour, but it is free.

Carrier by carrier

Which airlines ran best at LAX in August

The choice of carrier is not cosmetic here. Spirit Airlines arrives on time 88.0% of the time; Frontier Airlines manages 68.7%. Sample sizes sit next to every figure, because a two-point gap across 440 flights means less than a ten-point one.

Carriers at LAX in August 2025
Airline	Flights	On time	Avg delay	Cancelled	Grade
SkyWest Airlines	3,465	86.5%	73 min	0.12%	A+
Delta Air Lines	3,211	84.4%	69 min	0.53%	B+
American Airlines	2,595	77.8%	97 min	0.96%	B+
United Airlines	2,459	81.6%	67 min	1.02%	B
Southwest Airlines	2,084	82.2%	48 min	0.24%	B+
JetBlue Airways	716	83.3%	80 min	0.28%	B+
Alaska Airlines	685	82.6%	53 min	0.44%	B+
Spirit Airlines	604	88.0%	83 min	0.17%	A+
Frontier Airlines	440	68.7%	88 min	1.36%	C
Hawaiian Airlinesthin sample	167	73.1%	61 min	0.00%	C+
Allegiant Airthin sample	67	74.6%	125 min	0.00%	C+

The spread between Spirit and Frontier is 19 points, wide enough that it should decide the booking. On a hundred trips that is 19 more arrivals inside the on-time window.

Route by route

Busiest routes out of LAX in August

Routes from LAX in August 2025
Route	Flights	On time	Avg delay	Cancelled	Grade
LAX to SFO · San Francisco	930	75.5%	57 min	0.54%	B+
LAX to JFK · New York	911	83.6%	92 min	0.22%	B+
LAX to LAS · Las Vegas	740	80.9%	59 min	0.14%	B+
LAX to ORD · Chicago	668	73.4%	88 min	1.95%	C
LAX to DEN · Denver	658	75.0%	66 min	0.61%	B+
LAX to SEA · Seattle	633	80.9%	70 min	0.63%	B+
LAX to PHX · Phoenix	616	83.9%	61 min	0.32%	B+
LAX to DFW · Dallas-Fort Worth	556	73.6%	145 min	2.34%	C
LAX to ATL · Atlanta	483	81.3%	83 min	0.83%	B+
LAX to EWR · Newark	480	79.8%	73 min	2.08%	B
LAX to SMF · Sacramento	469	85.7%	70 min	0.00%	A+
LAX to HNL · Honolulu	460	79.8%	86 min	0.00%	B+
LAX to IAH · Houston	442	86.2%	60 min	0.68%	A+
LAX to BOS · Boston	433	87.7%	62 min	0.23%	A+
LAX to PDX · Portland	412	82.3%	76 min	1.21%	B
LAX to SJC · San Jose	391	92.1%	41 min	0.00%	A+
LAX to AUS · Austinthin sample	314	86.5%	67 min	0.64%	A+
LAX to SLC · Salt Lake Citythin sample	302	86.0%	62 min	0.33%	A+
LAX to MCO · Orlandothin sample	288	76.7%	69 min	0.00%	B+
LAX to RNO · Renothin sample	252	85.7%	62 min	0.40%	A+
LAX to MIA · Miamithin sample	252	76.2%	60 min	0.00%	B+
LAX to PHL · Philadelphiathin sample	252	76.5%	89 min	0.40%	B+
LAX to DTW · Detroitthin sample	243	84.7%	70 min	0.41%	B+
LAX to SAN · San Diegothin sample	211	90.5%	61 min	0.00%	A+
LAX to MSP · Minneapolisthin sample	210	88.5%	63 min	0.48%	A+

Delay causes

What held LAX up in August

One category carries most of the weight here. Carrier accounts for 44% of the 209,000 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.

Carrier
44%
Late-arriving aircraft
36%
National Airspace System
17%
Extreme weather
3%
Security
0%

36% 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 209,000 reported delay minutes here, that single category outweighs weather by 12 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 209,068 reported delay minutes.

Cancellations are rare at 0.53%, below the national 1.08% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.

6.1% of arrivals land an hour or more late, close to the national 8.2%. 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 a little over an hour, which a normal layover absorbs.

What to do with this

Flying from LAX in August

For a August trip through LAX: this is one of the better months to be flying from here, 82.5% on time with 0.53% cancelled. That is a base rate for the month as a whole; a single storm can still spoil a particular day.

Los Angeles International (LAX), the whole year
LAX in July77.5%
LAX in September85.8%
LAX in October83.5%
LAX in November79.7%
LAX in December77.7%
LAX in January81.2%
LAX in February80.9%
LAX in March77.7%
LAX in April81.5%
LAX in May80.0%
LAX in June77.0%

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