Los Angeles International in August 2023

78.6%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 August 2023, reporting carriers scheduled 17,683 domestic departures from Los Angeles International (LAX). 78.6% left less than 15 minutes late and 79.0% reached their destination on time; 1.0% were cancelled.

Nationally that month, 76.7% of flights departed on time and 76.9% arrived on time, so LAX departures were 1.9 points above the national departure figure.

Flights arriving at LAX that month were on time 77.6% of the time (17,685 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 42%, late-arriving aircraft 41% and national aviation system 15%.

On time 79.0%
Arrived 15+ minutes late 19.7%
Cancelled 1.0%
Diverted 0.3%

Every scheduled departure from LAX in August 2023, judged by arrival at the destination.

August 2023 against a year earlier, the airport's year and the nation

Measure	Aug 2023	Year earlier	LAX, 12 months to Jul 2026	All reported flights, Aug 2023
Departed on time	78.6%	—	79.0%	76.7%
Arrived on time	79.0%	—	79.0%	76.9%
Cancelled	1.0%	—	0.9%	1.5%
Average departure delay (late minutes only)	15.7 min	—	15.1 min	17.3 min
Scheduled departures a day	589	—	521	20,100
Scheduled departures	17,683	—	190,106	602,987

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
DL Delta Air Lines	3,349	19%	80.3%	3.7 min	0.8%
OO SkyWest Airlines	3,091	17%	89.0%	-2.2 min	0.7%
WN Southwest Airlines	2,754	16%	72.7%	8.6 min	1.1%
AA American Airlines	2,613	15%	76.9%	14.7 min	0.7%
UA United Airlines	2,410	14%	84.9%	-3.3 min	1.5%
NK Spirit Airlines	1,177	7%	66.5%	17.9 min	0.9%
B6 JetBlue Airways	1,104	6%	71.1%	8.9 min	1.3%
AS Alaska Airlines	860	5%	81.5%	2.0 min	0.3%
HA Hawaiian Airlines	187	1%	66.3%	14.8 min	2.1%
G4 Allegiant Air	138	1%	61.6%	21.9 min	2.9%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
LAX–SFO	Los Angeles to San Francisco	993	77.4%	6.3 min	0.4%
LAX–LAS	Los Angeles to Las Vegas	908	73.9%	10.9 min	1.9%
LAX–JFK	Los Angeles to New York	875	73.9%	13.7 min	0.7%
LAX–SEA	Los Angeles to Seattle	734	85.1%	-2.3 min	0.3%
LAX–DEN	Los Angeles to Denver	639	77.3%	5.1 min	0.8%
LAX–ORD	Los Angeles to Chicago	606	80.5%	8.4 min	0.8%
LAX–DFW	Los Angeles to Dallas/Fort Worth	602	72.1%	20.1 min	0.8%
LAX–PHX	Los Angeles to Phoenix	589	80.0%	5.8 min	1.0%
LAX–EWR	Los Angeles to Newark	514	75.7%	3.6 min	1.8%
LAX–ATL	Los Angeles to Atlanta	509	75.0%	6.6 min	1.8%
LAX–IAH	Los Angeles to Houston	491	83.1%	3.5 min	0.6%
LAX–HNL	Los Angeles to Honolulu	481	66.9%	16.0 min	1.0%

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), August 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Aug 2023	Minutes
Air carrier	42.4%	36.7%	103,127
Late-arriving aircraft	40.5%	42.2%	98,464
National Aviation System	15.3%	15.7%	37,093
Extreme weather	1.8%	5.1%	4,300
Security	0.1%	0.2%	242

243,226 delay minutes on 3,484 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 LAX on time in August 2023?

78.6% of 17,683 scheduled domestic departures left less than 15 minutes late, and 79.0% reached their destination on time. The national figures that month were 76.7% and 76.9%.

How does that compare with a year earlier?

August 2022 is outside the 36 months on file, or the airport had too few reported flights that month.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for August 2023; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for LAX · methodology · corrections.