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DelayAtlas

Carrier route record

NKLAX→EWR

Spirit Airlines · Los Angeles to Newark

Flights
252
Period
September 2025 to August 2026
Share of route
5%
Carriers
4
B−GRADE

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

Spirit on LAX to EWR sits in the middle of the pack with a B−. Close to three flights in four arrive on time by the DOT's definition, 2 points worse than the national rate of 77.3%. The late ones land roughly 50 minutes behind schedule. That rests on 252 flights. The strongest carrier on the route with a full sample, Alaska Airlines, flew 490 at 91.6% on time.

Alaska Airlines is the most reliable of the three carriers covered here at 91.6% on time across 490 flights.

Key figures

On time

75.1%

Arrivals under 15 minutes late, of 237 completed flights

Avg delay

51 min

Across delayed arrivals only, not all flights

Cancelled

5.16%

National rate is 1.89%

Whole route

79.1%

Every carrier on LAX to EWR, 4,748 flights

These figures cover 252 flights between September 2025 and August 2026. The median arrival is 6 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.

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

Spirit against every carrier on LAX to EWR

Spirit flew 252 of the 4,748 flights on LAX to EWR, about 5% of it. Its 75.1% on time is 4 points worse than the route as a whole, which runs 79.1%. Ranked by on-time rate it is last of four carriers on the route, where the range runs from Alaska at 91.6% to Spirit at 75.1%.

The choice of carrier is not cosmetic here. Alaska Airlines arrives on time 91.6% of the time; United Airlines manages 77.7%. Sample sizes sit next to every figure, because a two-point gap across 3,526 flights means less than a ten-point one.

On-time performance by carrier on LAX to EWR
AirlineFlightsOn timeAvg delayCancelledGrade
Alaska Airlines49091.6%58 min1.63%A
JetBlue Airways48078.4%79 min3.54%B−
United Airlines3,52677.7%77 min1.76%B
Spirit Airlines (this page)thin sample25275.1%51 min5.16%B−

JetBlue Airways cancels 3.5% 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.

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 Spirit runs best on this route

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 30 points, against 14 points between the best and worst carrier.

  • 5am–8am77 flights95.8%
  • 8am–11am133 flights66.1%
  • 11am–2pm10 flights—
  • 2pm–5pm1 flights—
  • 5pm–8pm—
  • 8pm–5am31 flights—

Scale runs 60% to 100%. Rows with fewer than 30 flights show a dash.

Book the early departure. Flights leaving between 5am–8am arrive on time 95.8% of the time, against 66.1% for the morning window. That is 30 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 133 flights scheduled in it.

Across the year

Spirit on LAX to EWR through the year

  • Jul–Sep 202530 flights—
  • Oct–Dec 2025101 flights85.3%
  • Jan–Mar 202696 flights60.0%
  • Apr–Jun 202625 flights—

Scale runs 50% to 90%. Rows with fewer than 30 flights show a dash.

Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 75.1% on time across 252 flights.

Split by quarter, Spirit on LAX to EWR logged 30 flights in Jul–Sep 2025, 101 flights in Oct–Dec 2025, 96 flights in Jan–Mar 2026 and 25 flights in Apr–Jun 2026. Fewer than three of those quarters carried the 30 completed flights this site needs before printing a rate, so the 75.1% annual figure is the one to use.

Across the week, Wednesday is the strongest day at 87.9% on time and Saturday the weakest at 63.6%, a spread of 24 points.

On-time rate by day of the week82.9Mon72.2Tue87.9Wed71.4Thu78.8Fri63.6Sat68.8Sun
Monday: 82.9 percent on time. Tuesday: 72.2 percent on time. Wednesday: 87.9 percent on time. Thursday: 71.4 percent on time. Friday: 78.8 percent on time. Saturday: 63.6 percent on time. Sunday: 68.8 percent on time

Arrival by arrival

How late Spirit on LAX to EWR runs when it is late

Spirit on LAX to EWR often beats the schedule: 84 of 237 completed flights, 35%, arrived 15 minutes or more early. The 59 late arrivals split 26 under half an hour, 16 between 30 and 60 minutes, and 17 an hour or more.

  • 15+ min early84 flights35.4%
  • Within 15 min94 flights39.7%
  • 15–29 min late26 flights11.0%
  • 30–59 min late16 flights6.8%
  • 1–2 hours late12 flights5.1%
  • 2+ hours late5 flights2.1%

Scale runs 0% to 100%.

Share of 237 completed flights by arrival against schedule.

14 of 58 late departures made up the time and arrived on time, 24% of them. In the other direction, 15 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 EWR.

The worst days

Worst days for Spirit on LAX to EWR

The latest arrival of the period was on 26 January 2026, 4 hours 16 minutes behind schedule; most of its delay minutes were filed as national airspace system delay. The same cause led on three of the five worst days.

The latest arrivals of Spirit on LAX to EWR in the period
DateArrived late byLargest filed cause
26 January 20264 hours 16 minutesNational Airspace System
15 January 20262 hours 53 minutesCarrier
12 February 20262 hours 33 minutesLate-arriving aircraft
14 December 20252 hours 16 minutesNational Airspace System
26 December 20252 hours 2 minutesNational Airspace System

Delay causes

Why Spirit runs late on this route

National Airspace System accounts for 56% of the 3,017 delay minutes carriers reported here, and the remaining four split what is left.

  • National Airspace System
    56%
  • Carrier
    24%
  • Late-arriving aircraft
    20%

56% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 1,690 minutes out of 3,017, against a national NAS share of 21%. The split is drawn from 3,017 reported delay minutes.

Cancellations run at 5.16%, against 1.89% nationally. That is about one flight in twenty 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

7.2% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last roughly 50 minutes, which a normal layover absorbs.

At 2,454 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 62.6% on time across 252 flights, 12 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 12 points of difference.

One caution: this is a thin sample. 252 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.

What to do with this

Booking Spirit on LAX to EWR

Put together: the delay figures matter less here than the 5.16% cancellation rate. A late arrival costs you roughly 50 minutes; 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. 237 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.