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DelayAtlas

Carrier route record

B6JFK→LAX

JetBlue Airways · New York to Los Angeles

Flights
3,480
Period
September 2025 to August 2026
Share of route
34%
Carriers
4
C−GRADE

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

JetBlue on JFK to LAX sits in the middle of the pack with a C−. About seven flights in ten arrive on time by the DOT's definition, 5 points worse than the national rate of 77.3%. The late ones land a little over an hour behind schedule. That rests on 3,480 flights. The strongest carrier on the route with a full sample, American Airlines, flew 3,298 at 78.6% on time.

The national on-time rate over the same period is 77.3%, so JetBlue on JFK to LAX runs 5 points behind the country as a whole. Across a thousand flights that is about 48 extra late arrivals.

Key figures

On time

72.5%

Arrivals under 15 minutes late, of 3,364 completed flights

Avg delay

73 min

Across delayed arrivals only, not all flights

Cancelled

3.19%

National rate is 1.89%

Whole route

75.4%

Every carrier on JFK to LAX, 10,285 flights

These figures cover 3,480 flights between September 2025 and August 2026. Beyond the headline rate, 11.2% 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

JetBlue against every carrier on JFK to LAX

JetBlue flew 3,480 of the 10,285 flights on JFK to LAX, about 34% of it. Its 72.5% on time is 3 points worse than the route as a whole, which runs 75.4%. Ranked by on-time rate it is number three 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 Airlines3,29878.6%96 min2.61%B
Delta Air Lines3,36675.3%67 min2.55%B
JetBlue Airways (this page)3,48072.5%73 min3.19%C−
Frontier Airlinesthin sample14170.8%78 min2.13%C

No carrier stands out. American tops the table at 78.6%, 3 points clear of the bottom, which is inside the range this kind of sample moves year to year.

Flight by flight

JetBlue 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 JetBlue runs best on this route

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 25 points, against 3 points between the best and worst carrier.

  • 5am–8am632 flights84.0%
  • 8am–11am683 flights77.9%
  • 11am–2pm553 flights77.8%
  • 2pm–5pm440 flights69.3%
  • 5pm–8pm629 flights64.6%
  • 8pm–5am543 flights58.9%

Scale runs 50% to 90%.

The 8pm–5am window is where this operation falls apart: 58.9% on time, against 84.0% for the 5am–8am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 8am–11am window is the busiest, with 683 flights scheduled in it.

Across the year

JetBlue on JFK to LAX through the year

On-time rate by calendar month71J73F86M77A82M66J62J58A85S68O78N67D
Darker means more delays. Figures are on-time percentages.March best, August worst

August is the worst month at 57.9% on time, 28 points below March, the best at 85.7%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. December was the busiest month here, with 323 flights.

Across the week, Wednesday is the strongest day at 77.9% on time and Sunday the weakest at 62.5%, a spread of 15 points.

On-time rate by day of the week71.2Mon76.6Tue77.9Wed71.0Thu76.7Fri71.7Sat62.5Sun
Monday: 71.2 percent on time. Tuesday: 76.6 percent on time. Wednesday: 77.9 percent on time. Thursday: 71.0 percent on time. Friday: 76.7 percent on time. Saturday: 71.7 percent on time. Sunday: 62.5 percent on time

Arrival by arrival

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

JetBlue on JFK to LAX often beats the schedule: 1,158 of 3,364 completed flights, 34%, arrived 15 minutes or more early. The 924 late arrivals split 287 under half an hour, 260 between 30 and 60 minutes, and 377 an hour or more.

  • 15+ min early1,158 flights34.4%
  • Within 15 min1,282 flights38.1%
  • 15–29 min late287 flights8.5%
  • 30–59 min late260 flights7.7%
  • 1–2 hours late210 flights6.2%
  • 2+ hours late167 flights5.0%

Scale runs 0% to 100%.

Share of 3,364 completed flights by arrival against schedule.

136 of 743 late departures made up the time and arrived on time, 18% of them. In the other direction, 317 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 JetBlue on JFK to LAX

The latest arrival of the period was on 4 July 2026, 12 hours 37 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.

The latest arrivals of JetBlue on JFK to LAX in the period
DateArrived late byLargest filed cause
4 July 202612 hours 37 minutesCarrier
8 August 202610 hours 52 minutesCarrier
18 January 202610 hours 30 minutesCarrier
14 December 202510 hours 10 minutesExtreme weather
21 July 20269 hours 38 minutesExtreme weather

Delay causes

Why JetBlue runs late on this route

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 67,000 reported delay minutes.

  • Late-arriving aircraft
    41%
  • National Airspace System
    28%
  • Carrier
    25%
  • Extreme weather
    5%
  • Security
    0%

41% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 67,000 reported delay minutes here, that single category outweighs weather by 8 to one. The split is drawn from 67,260 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 84.0% on time here.

Cancellations run at 3.19%, against 1.89% nationally. That is about one flight in 30 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

11.2% 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 77.9% on time across 3,479 flights, 5 points above 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 5 points of difference.

The sample behind these figures is 3,480 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 JetBlue on JFK to LAX

Put together: the delay figures matter less here than the 3.19% cancellation rate. A late arrival costs you a little over an hour; a cancelled flight costs you the day. Book the 5am–8am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 3,364 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.