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DelayAtlas

Airport month record

LAXJUL

Los Angeles International in July 2025

Departures
17,104
Month
July 2025
National, same month
71.1%
Carriers
11
BGRADE

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

LAX in July lands a B, 6 points better than the national rate of 71.1%. Roughly one flight in four 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 17,104 flights, of which SkyWest Airlines flew 3,363 at 85.4% on time.

SkyWest Airlines is the most reliable of the nine carriers covered here at 85.4% on time across 3,363 flights.

Key figures

On time

77.5%

Arrivals under 15 minutes late, of 16,803 completed departures

Avg delay

78 min

Across delayed arrivals only, not all flights

Cancelled

1.20%

Nationally in July: 2.45%

Whole year

80.4%

LAX across all twelve months

These figures cover 17,104 departures from Los Angeles International in July 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

July next to LAX's other months

Against LAX's own year, July ran 3 points worse than the twelve-month rate of 80.4%, which makes it number eleven of twelve months, best first.

LAX month by month
MonthFlightsOn timeAvg delayCancelledGrade
July 2025 (this page)17,10477.5%78 min1.20%B
August 202516,49382.5%73 min0.53%B+
September 202515,26285.8%66 min0.28%A+
October 202516,12283.5%70 min0.31%B+
November 202515,42279.7%67 min1.78%B
December 202516,05077.7%71 min0.88%B+
January 202614,81581.2%76 min2.17%B
February 202613,68780.9%69 min1.42%B
March 202616,08877.7%65 min1.29%B
April 202615,73281.5%62 min0.44%B+
May 202616,31780.0%64 min0.54%B+
June 202616,66477.0%69 min0.61%B+

Departure window

The best time of day to leave LAX in July

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 18 points, against 28 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

  • 5am–8am2,246 flights90.5%
  • 8am–11am4,044 flights81.2%
  • 11am–2pm2,620 flights74.1%
  • 2pm–5pm2,354 flights72.4%
  • 5pm–8pm2,601 flights74.4%
  • 8pm–5am3,239 flights73.2%

Scale runs 65% to 95%. Rows with fewer than 30 flights show a dash.

Book the early departure. Flights leaving between 5am–8am arrive on time 90.5% of the time, against 72.4% for the afternoon window. That is 18 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 4,044 flights scheduled in it.

Across the week, Saturday is the strongest day at 82.9% on time and Sunday the weakest at 73.8%. 9 points is a smaller lever than departure hour, but it is free.

On-time rate by day of the week76.5Mon77.0Tue79.3Wed76.5Thu77.6Fri82.9Sat73.8Sun
Monday: 76.5 percent on time. Tuesday: 77.0 percent on time. Wednesday: 79.3 percent on time. Thursday: 76.5 percent on time. Friday: 77.6 percent on time. Saturday: 82.9 percent on time. Sunday: 73.8 percent on time

Carrier by carrier

Which airlines ran best at LAX in July

The choice of carrier is not cosmetic here. SkyWest Airlines arrives on time 85.4% of the time; Frontier Airlines manages 57.4%. Sample sizes sit next to every figure, because a two-point gap across 426 flights means less than a ten-point one.

Carriers at LAX in July 2025
AirlineFlightsOn timeAvg delayCancelledGrade
SkyWest Airlines3,36385.4%74 min0.24%A+
Delta Air Lines3,34979.5%67 min0.90%B+
American Airlines2,76669.7%100 min1.99%C
United Airlines2,61078.5%73 min1.07%B
Southwest Airlines2,20577.8%58 min0.91%B+
JetBlue Airways74769.8%100 min3.08%C−
Alaska Airlines71877.9%57 min2.65%B
Spirit Airlines61682.4%71 min1.14%B
Frontier Airlines42657.4%85 min3.05%D−
Hawaiian Airlinesthin sample17759.1%54 min0.56%D+
Allegiant Airthin sample12773.8%133 min0.79%C+

JetBlue Airways cancels 3.1% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.

Route by route

Busiest routes out of LAX in July

Routes from LAX in July 2025
RouteFlightsOn timeAvg delayCancelledGrade
LAX to JFK · New York92271.3%91 min2.60%C
LAX to SFO · San Francisco89671.4%65 min0.22%C+
LAX to LAS · Las Vegas74174.2%79 min0.67%C+
LAX to ORD · Chicago68877.2%90 min3.63%B−
LAX to DEN · Denver68072.8%75 min1.03%C
LAX to SEA · Seattle64280.5%64 min1.56%B
LAX to PHX · Phoenix60980.8%70 min0.99%B+
LAX to DFW · Dallas-Fort Worth56567.2%121 min1.95%C
LAX to HNL · Honolulu54869.9%67 min1.28%C
LAX to SMF · Sacramento51283.7%68 min0.59%B+
LAX to ATL · Atlanta49873.6%64 min0.80%C+
LAX to EWR · Newark48572.0%92 min4.54%C−
LAX to IAH · Houston45380.0%76 min1.10%B
LAX to BOS · Boston44079.3%85 min0.23%B+
LAX to PDX · Portland41086.0%53 min2.20%A
LAX to SJC · San Jose36787.1%52 min0.54%A+
LAX to AUS · Austinthin sample35576.1%73 min1.69%B
LAX to SLC · Salt Lake Citythin sample29185.6%80 min0.00%A+
LAX to MIA · Miamithin sample27766.8%89 min0.36%C+
LAX to MCO · Orlandothin sample27263.8%80 min0.37%D+
LAX to PHL · Philadelphiathin sample26464.4%101 min4.92%D−
LAX to DTW · Detroitthin sample26183.8%55 min0.38%B+
LAX to CLT · Charlottethin sample24975.7%114 min0.80%B+
LAX to OGG · Kahuluithin sample24882.8%68 min1.21%B
LAX to RNO · Renothin sample24083.3%58 min0.00%B+

Delay causes

What held LAX up in July

Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 293,000 reported delay minutes.

  • Late-arriving aircraft
    40%
  • Carrier
    37%
  • National Airspace System
    21%
  • Extreme weather
    1%
  • Security
    0%

40% 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 293,000 reported delay minutes here, that single category outweighs weather by 28 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 292,511 reported delay minutes.

Cancellations sit at 1.20% against a national 2.45%, which is ordinary. Diversions add another 0.56%.

8.9% of arrivals land an hour or more late, close to the national 12.1%. 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 July

For a July trip through LAX: plan on this being one of the airport's harder months. The 5am–8am departures held up best at 90.5% on time, and with 8.9% of arrivals an hour or more late, a connection here deserves more slack than the same trip in September would.

Related

Where to go next

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.