Los Angeles International in May 2025

82.6%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 May 2025, reporting carriers scheduled 16,546 domestic departures from Los Angeles International (LAX). 82.6% left less than 15 minutes late and 82.3% reached their destination on time; 0.4% were cancelled.

Nationally that month, 76.7% of flights departed on time and 75.4% arrived on time, so LAX departures were 5.9 points above the national departure figure.

A year earlier, in May 2024, the airport had 16,587 departures with 77.2% leaving on time: a change of +5.4 points, with flights down 0%.

Flights arriving at LAX that month were on time 81.8% of the time (16,552 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 34%, late-arriving aircraft 33% and national aviation system 30%.

On time 82.3%
Arrived 15+ minutes late 17.1%
Cancelled 0.4%
Diverted 0.3%

Every scheduled departure from LAX in May 2025, judged by arrival at the destination.

May 2025 against a year earlier, the airport's year and the nation

Measure	May 2025	May 2024	LAX, 12 months to Jul 2026	All reported flights, May 2025
Departed on time	82.6%	77.2%	79.0%	76.7%
Arrived on time	82.3%	76.3%	79.0%	75.4%
Cancelled	0.4%	0.5%	0.9%	1.0%
Average departure delay (late minutes only)	13.3 min	17.1 min	15.1 min	17.5 min
Scheduled departures a day	552	553	521	20,188
Scheduled departures	16,546	16,587	190,106	605,648

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	3,325	20%	89.5%	-2.9 min	0.1%
DL Delta Air Lines	3,272	20%	81.3%	2.3 min	0.1%
AA American Airlines	2,672	16%	77.2%	10.7 min	0.6%
UA United Airlines	2,474	15%	82.2%	5.0 min	0.5%
WN Southwest Airlines	2,075	13%	84.1%	-1.1 min	0.4%
AS Alaska Airlines	675	4%	80.9%	3.7 min	0.7%
B6 JetBlue Airways	656	4%	79.1%	-0.1 min	0.0%
NK Spirit Airlines	635	4%	85.5%	-0.1 min	0.3%
F9 Frontier Airlines	441	3%	66.4%	20.4 min	1.6%
HA Hawaiian Airlines	218	1%	70.2%	11.5 min	0.9%
G4 Allegiant Air	73	0%	79.5%	2.1 min	0.0%
MQ Envoy Air	30	0%	93.3%	-9.1 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
LAX–SFO	Los Angeles to San Francisco	961	79.4%	4.3 min	0.1%
LAX–JFK	Los Angeles to New York	875	75.9%	7.5 min	0.0%
LAX–LAS	Los Angeles to Las Vegas	752	77.7%	8.6 min	0.1%
LAX–DEN	Los Angeles to Denver	691	74.1%	12.6 min	0.4%
LAX–PHX	Los Angeles to Phoenix	667	85.0%	1.1 min	0.0%
LAX–SEA	Los Angeles to Seattle	653	82.8%	-1.7 min	0.8%
LAX–ORD	Los Angeles to Chicago	641	84.2%	0.9 min	0.3%
LAX–DFW	Los Angeles to Dallas/Fort Worth	579	73.9%	21.5 min	1.6%
LAX–SMF	Los Angeles to Sacramento	495	89.9%	-3.5 min	0.0%
LAX–ATL	Los Angeles to Atlanta	484	78.7%	5.1 min	0.8%
LAX–EWR	Los Angeles to Newark	474	60.3%	39.9 min	2.1%
LAX–HNL	Los Angeles to Honolulu	455	82.0%	-0.1 min	0.4%

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), May 2025.

Delay causes

BTS cause category	Share of delay minutes	National, May 2025	Minutes
Air carrier	34.1%	29.3%	68,454
Late-arriving aircraft	33.0%	37.8%	66,240
National Aviation System	30.4%	25.9%	60,993
Extreme weather	2.5%	6.9%	4,952
Security	0.1%	0.1%	131

200,770 delay minutes on 2,828 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 May 2025?

82.6% of 16,546 scheduled domestic departures left less than 15 minutes late, and 82.3% reached their destination on time. The national figures that month were 76.7% and 75.4%.

How does that compare with a year earlier?

In May 2024, 77.2% of 16,587 departures left on time and 0.5% were cancelled, against 82.6% and 0.4% in May 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for May 2025; 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.