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DelayAtlas

Carrier route record

AAJFK→LAX

American Airlines · New York to Los Angeles

Flights
3,298
Period
September 2025 to August 2026
Share of route
32%
Carriers
4
BGRADE

Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with American Airlines.

American on JFK to LAX lands a B, about a point better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by an hour and a half on average. That rests on 3,298 flights. The strongest carrier on the route with a full sample, Delta Air Lines, flew 3,366 at 75.3% on time.

The US average over the same twelve months is 77.3%, so there is little to separate American on JFK to LAX from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.

Key figures

On time

78.6%

Arrivals under 15 minutes late, of 3,206 completed flights

Avg delay

96 min

Across delayed arrivals only, not all flights

Cancelled

2.61%

National rate is 1.89%

Whole route

75.4%

Every carrier on JFK to LAX, 10,285 flights

These figures cover 3,298 flights between September 2025 and August 2026. Beyond the headline rate, 9.3% of arrivals land a full hour or more behind schedule, against 8.3% nationally.

Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Carrier by carrier

American against every carrier on JFK to LAX

American flew 3,298 of the 10,285 flights on JFK to LAX, about 32% of it. Its 78.6% on time is 3 points better than the route as a whole, which runs 75.4%. Ranked by on-time rate it is first of four carriers on the route, where the range runs from American at 78.6% to Frontier at 70.8%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.

The two carriers here are closely matched: 3 points separate the best from the worst. At that spread, schedule and price are better tie-breakers than reliability. Sample sizes are shown so you can see which rows are worth weighing.

On-time performance by carrier on JFK to LAX
AirlineFlightsOn timeAvg delayCancelledGrade
American Airlines (this page)3,29878.6%96 min2.61%B
Delta Air Lines3,36675.3%67 min2.55%B
JetBlue Airways3,48072.5%73 min3.19%C−
Frontier Airlinesthin sample14170.8%78 min2.13%C

JetBlue Airways cancels 3.2% 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.

Flight by flight

American flight numbers on JFK to LAX

Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Departure window

When American runs best on this route

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 18 points, against 3 points between the best and worst carrier.

  • 5am–8am702 flights87.8%
  • 8am–11am405 flights80.4%
  • 11am–2pm296 flights84.1%
  • 2pm–5pm747 flights78.1%
  • 5pm–8pm556 flights72.6%
  • 8pm–5am592 flights70.0%

Scale runs 60% to 95%.

Book the early departure. Flights leaving between 5am–8am arrive on time 87.8% of the time, against 70.0% for the overnight 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 2pm–5pm window is the busiest, with 747 flights scheduled in it.

Across the year

American on JFK to LAX through the year

On-time rate by calendar month69J74F85M85A82M79J77J74A85S81O80N72D
Darker means more delays. Figures are on-time percentages.March best, January worst

January is the weak month at 69.0% on time, against 85.3% in March. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. August was the busiest month here, with 310 flights.

Across the week, Tuesday is the strongest day at 83.3% on time and Saturday the weakest at 73.9%, a spread of 9 points.

On-time rate by day of the week80.0Mon83.3Tue81.3Wed78.0Thu79.0Fri73.9Sat74.9Sun
Monday: 80.0 percent on time. Tuesday: 83.3 percent on time. Wednesday: 81.3 percent on time. Thursday: 78.0 percent on time. Friday: 79.0 percent on time. Saturday: 73.9 percent on time. Sunday: 74.9 percent on time

Arrival by arrival

How late American on JFK to LAX runs when it is late

American on JFK to LAX often beats the schedule: 1,405 of 3,206 completed flights, 44%, arrived 15 minutes or more early. The 685 late arrivals split 205 under half an hour, 183 between 30 and 60 minutes, and 297 an hour or more.

  • 15+ min early1,405 flights43.8%
  • Within 15 min1,116 flights34.8%
  • 15–29 min late205 flights6.4%
  • 30–59 min late183 flights5.7%
  • 1–2 hours late147 flights4.6%
  • 2+ hours late150 flights4.7%

Scale runs 0% to 100%.

Share of 3,206 completed flights by arrival against schedule.

165 of 619 late departures made up the time and arrived on time, 27% of them. In the other direction, 231 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at LAX.

The worst days

Worst days for American on JFK to LAX

The latest arrival of the period was on 20 May 2026, 17 hours 12 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on four of the five worst days.

The latest arrivals of American on JFK to LAX in the period
DateArrived late byLargest filed cause
20 May 202617 hours 12 minutesCarrier
6 August 202616 hours 35 minutesCarrier
4 November 202515 hours 29 minutesCarrier
8 May 202614 hours 9 minutesLate-arriving aircraft
24 February 202613 hours 48 minutesCarrier

Delay causes

Why American runs late on this route

Late-arriving aircraft accounts for 46% of the 66,000 delay minutes carriers reported here, and the remaining four split what is left.

  • Late-arriving aircraft
    46%
  • Carrier
    33%
  • National Airspace System
    18%
  • Extreme weather
    3%
  • Security
    0%

46% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 66,000 reported delay minutes here, that single category outweighs weather by 14 to one. The split is drawn from 65,541 reported delay minutes.

The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 87.8% on time here.

Cancellations run at 2.61%, against 1.89% nationally. That is about one flight in 40 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.

Connections and stage length

What a delay here costs

9.3% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.

At 2,475 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.

The return leg is a different operation and performs like one: it runs 74.9% on time across 3,303 flights, 4 points below this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 4 points of difference.

The sample behind these figures is 3,298 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.

What to do with this

Booking American on JFK to LAX

Put together: the calendar is the biggest lever here, not the carrier or the hour. March runs 85.3% on time and January 69.0%, a swing of 16 points. If the dates move at all, move them out of January before you think about anything else. 3,206 completed flights over 12 months sit behind that.

Related

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.