Los Angeles International in December 2024

81.7%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 December 2024, reporting carriers scheduled 16,495 domestic departures from Los Angeles International (LAX). 81.7% left less than 15 minutes late and 82.2% reached their destination on time; 0.4% were cancelled.

Nationally that month, 77.8% of flights departed on time and 78.1% arrived on time, so LAX departures were 3.9 points above the national departure figure.

A year earlier, in December 2023, the airport had 15,948 departures with 84.3% leaving on time: a change of −2.6 points, with flights up 3%.

Flights arriving at LAX that month were on time 81.7% of the time (16,498 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 36%, late-arriving aircraft 35% and national aviation system 22%.

On time 82.2%
Arrived 15+ minutes late 17.2%
Cancelled 0.4%
Diverted 0.2%

Every scheduled departure from LAX in December 2024, judged by arrival at the destination.

December 2024 against a year earlier, the airport's year and the nation

Measure	Dec 2024	Dec 2023	LAX, 12 months to Jul 2026	All reported flights, Dec 2024
Departed on time	81.7%	84.3%	79.0%	77.8%
Arrived on time	82.2%	81.6%	79.0%	78.1%
Cancelled	0.4%	0.2%	0.9%	0.7%
Average departure delay (late minutes only)	13.3 min	10.8 min	15.1 min	16.6 min
Scheduled departures a day	550	532	521	19,686
Scheduled departures	16,495	15,948	190,106	590,581

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	3,464	21%	77.7%	9.4 min	0.7%
DL Delta Air Lines	3,046	18%	83.5%	-0.1 min	0.0%
AA American Airlines	2,492	15%	84.2%	-0.5 min	0.4%
UA United Airlines	2,383	14%	83.3%	-0.1 min	0.3%
WN Southwest Airlines	2,087	13%	84.4%	-0.6 min	0.3%
NK Spirit Airlines	867	5%	82.0%	2.5 min	0.3%
AS Alaska Airlines	812	5%	83.9%	-0.7 min	0.5%
B6 JetBlue Airways	671	4%	86.0%	-1.6 min	0.0%
F9 Frontier Airlines	380	2%	71.8%	13.3 min	0.5%
HA Hawaiian Airlines	193	1%	83.4%	3.6 min	2.6%
G4 Allegiant Air	70	0%	85.7%	0.0 min	0.0%
MQ Envoy Air	30	0%	83.3%	17.8 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
LAX–SFO	Los Angeles to San Francisco	974	72.7%	9.1 min	0.1%
LAX–JFK	Los Angeles to New York	873	85.3%	-0.9 min	0.0%
LAX–LAS	Los Angeles to Las Vegas	803	85.8%	-0.8 min	0.2%
LAX–DEN	Los Angeles to Denver	677	91.3%	-4.8 min	0.1%
LAX–PHX	Los Angeles to Phoenix	655	86.9%	0.8 min	0.2%
LAX–SEA	Los Angeles to Seattle	639	84.5%	-2.4 min	0.6%
LAX–DFW	Los Angeles to Dallas/Fort Worth	618	79.4%	5.8 min	1.5%
LAX–ORD	Los Angeles to Chicago	591	83.6%	1.6 min	0.5%
LAX–IAH	Los Angeles to Houston	495	80.8%	2.2 min	0.4%
LAX–ATL	Los Angeles to Atlanta	466	74.2%	7.8 min	0.2%
LAX–HNL	Los Angeles to Honolulu	466	87.6%	-6.9 min	0.6%
LAX–SJC	Los Angeles to San Jose	457	82.3%	2.3 min	0.2%

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), December 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2024	Minutes
Air carrier	35.6%	34.3%	68,647
Late-arriving aircraft	34.6%	40.2%	66,751
National Aviation System	21.5%	17.8%	41,530
Extreme weather	8.1%	7.5%	15,607
Security	0.2%	0.2%	453

192,988 delay minutes on 2,831 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 December 2024?

81.7% of 16,495 scheduled domestic departures left less than 15 minutes late, and 82.2% reached their destination on time. The national figures that month were 77.8% and 78.1%.

How does that compare with a year earlier?

In December 2023, 84.3% of 15,948 departures left on time and 0.2% were cancelled, against 81.7% and 0.4% in December 2024.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for December 2024; 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.