On-Time Report

Airports › Los Angeles (LAX) › December 2023

Airport month · December 2023

Los Angeles International in December 2023

84.3%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 2023, reporting carriers scheduled 15,948 domestic departures from Los Angeles International (LAX). 84.3% left less than 15 minutes late and 81.6% reached their destination on time; 0.2% were cancelled.

Nationally that month, 83.1% of flights departed on time and 83.8% arrived on time, so LAX departures were 1.2 points above the national departure figure.

Flights arriving at LAX that month were on time 85.3% of the time (15,955 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 42%, late-arriving aircraft 32% and national aviation system 23%.

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

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

MeasureDec 2023Year earlierLAX, 12 months to Jul 2026All reported flights, Dec 2023
Departed on time84.3%—79.0%83.1%
Arrived on time81.6%—79.0%83.8%
Cancelled0.2%—0.9%0.4%
Average departure delay (late minutes only)10.8 min—15.1 min11.6 min
Scheduled departures a day532—52119,013
Scheduled departures15,948—190,106570,394

Airlines that month

Reporting carrierFlightsShareOn timeAvg arrival delayCancelled
DL Delta Air Lines3,05119%88.5%-3.5 min0.0%
OO SkyWest Airlines3,01819%84.8%1.8 min0.3%
WN Southwest Airlines2,38515%76.9%6.8 min0.5%
AA American Airlines2,36915%81.7%4.9 min0.0%
UA United Airlines2,16314%82.8%2.8 min0.1%
NK Spirit Airlines1,0226%80.4%2.3 min0.1%
B6 JetBlue Airways8876%66.7%15.6 min0.0%
AS Alaska Airlines7835%75.7%3.2 min0.0%
HA Hawaiian Airlines1861%69.9%6.1 min1.1%
G4 Allegiant Air841%78.6%3.5 min1.2%

Busiest routes that month

RouteCitiesFlightsOn timeAvg arrival delayCancelled
LAX–SFOLos Angeles to San Francisco88277.0%5.8 min0.2%
LAX–LASLos Angeles to Las Vegas84380.4%4.6 min0.1%
LAX–JFKLos Angeles to New York82075.1%8.8 min0.0%
LAX–DENLos Angeles to Denver62888.1%-3.0 min0.5%
LAX–DFWLos Angeles to Dallas/Fort Worth58887.1%3.2 min0.3%
LAX–PHXLos Angeles to Phoenix55485.2%1.0 min0.2%
LAX–SEALos Angeles to Seattle55384.3%-3.1 min0.0%
LAX–ORDLos Angeles to Chicago53485.8%1.9 min0.6%
LAX–ATLLos Angeles to Atlanta46285.5%3.9 min0.0%
LAX–HNLLos Angeles to Honolulu45771.8%7.1 min0.2%
LAX–EWRLos Angeles to Newark45072.0%13.3 min0.0%
LAX–IAHLos Angeles to Houston42589.9%-5.6 min0.0%

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), December 2023.

Delay causes

BTS cause categoryShare of delay minutesNational, Dec 2023Minutes
Air carrier41.5%37.1%67,955
Late-arriving aircraft31.6%38.8%51,757
National Aviation System22.6%17.6%37,032
Extreme weather3.9%6.2%6,459
Security0.3%0.3%483
163,686 delay minutes on 2,864 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← November 2023January 2024 →

Questions and answers

How many flights left LAX on time in December 2023?

84.3% of 15,948 scheduled domestic departures left less than 15 minutes late, and 81.6% reached their destination on time. The national figures that month were 83.1% and 83.8%.

How does that compare with a year earlier?

December 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 December 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.