Carrier route record

F9JFK→LAX

Frontier Airlines · New York to Los Angeles

Flights: 141
Period: September 2025 to August 2026
Share of route: 1%
Carriers: 4

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

Frontier 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, 7 points worse than the national rate of 77.3%. The late ones land a little over an hour behind schedule. That rests on 141 flights. The strongest carrier on the route with a full sample, American Airlines, flew 3,298 at 78.6% on time.

American Airlines is the most reliable of the three carriers covered here at 78.6% on time across 3,298 flights.

On time

70.8%

Arrivals under 15 minutes late, of 137 completed flights

Avg delay

78 min

Across delayed arrivals only, not all flights

Cancelled

2.13%

National rate is 1.89%

Whole route

75.4%

Every carrier on JFK to LAX, 10,285 flights

These figures cover 141 flights between September 2025 and August 2026. On-time means an arrival less than 15 minutes after the scheduled gate time, the same threshold the Department of Transportation uses in its own reports. Cancelled and diverted flights are excluded from the on-time rate and counted separately, which is why the cancellation column matters on its own.

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

Frontier against every carrier on JFK to LAX

Frontier flew 141 of the 10,285 flights on JFK to LAX, about 1% of it. Its 70.8% on time is 5 points worse than the route as a whole, which runs 75.4%. Ranked by on-time rate it is last of four carriers on the route, where the range runs from American at 78.6% to Frontier at 70.8%.

The choice of carrier is not cosmetic here. American Airlines arrives on time 78.6% of the time; JetBlue Airways manages 72.5%. Sample sizes sit next to every figure, because a two-point gap across 3,480 flights means less than a ten-point one.

On-time performance by carrier on JFK to LAX
Airline	Flights	On time	Avg delay	Cancelled	Grade
American Airlines	3,298	78.6%	96 min	2.61%	B
Delta Air Lines	3,366	75.3%	67 min	2.55%	B
JetBlue Airways	3,480	72.5%	73 min	3.19%	C−
Frontier Airlines (this page)thin sample	141	70.8%	78 min	2.13%	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.

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 Frontier runs best on this route

Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 141 flights.

There are not enough flights in each departure window to split Frontier's JFK to LAX record by time of day without the percentages moving on noise. The headline rate of 70.8% is the reliable figure here.

Across the year

Frontier on JFK to LAX through the year

Jul–Sep 202530 flights80.0%
Oct–Dec 202592 flights68.5%
Jan–Mar 202619 flights—

Scale runs 60% to 85%. 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 70.8% on time across 141 flights.

Split by quarter, Frontier on JFK to LAX logged 30 flights in Jul–Sep 2025, 92 flights in Oct–Dec 2025 and 19 flights in Jan–Mar 2026. Fewer than three of those quarters carried the 30 completed flights this site needs before printing a rate, so the 70.8% annual figure is the one to use.

Arrival by arrival

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

The 40 late arrivals split 17 under half an hour, 13 between 30 and 60 minutes, and 10 an hour or more.

15+ min early23 flights16.8%
Within 15 min74 flights54.0%
15–29 min late17 flights12.4%
30–59 min late13 flights9.5%
1–2 hours late7 flights5.1%
2+ hours late3 flights2.2%

Scale runs 0% to 100%.

Share of 137 completed flights by arrival against schedule.

5 of 22 late departures made up the time and arrived on time, 23% of them. In the other direction, 23 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 Frontier on JFK to LAX

The latest arrival of the period was on 23 September 2025, 21 hours 9 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The five worst days are spread across September, December, October and November, with no single month standing out.

The latest arrivals of Frontier on JFK to LAX in the period
Date	Arrived late by	Largest filed cause
23 September 2025	21 hours 9 minutes	Late-arriving aircraft
27 December 2025	2 hours 21 minutes	Carrier
21 October 2025	2 hours 19 minutes	Carrier
14 October 2025	1 hour 59 minutes	Late-arriving aircraft
6 November 2025	1 hour 47 minutes	National Airspace System

Delay causes

Why Frontier runs late on this route

Late-arriving aircraft accounts for 48% of the 3,104 delay minutes carriers reported here, and the remaining four split what is left.

Late-arriving aircraft
48%
National Airspace System
33%
Carrier
17%
Extreme weather
2%

48% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 3,104 reported delay minutes here, that single category outweighs weather by 28 to one. The split is drawn from 3,104 reported delay minutes.

33% 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 1,037 minutes out of 3,104, against a national NAS share of 21%.

Cancellations sit at 2.13% against a national 1.89%, which is ordinary. Diversions add another 0.71%.

Connections and stage length

What a delay here costs

7.3% 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 a little over an hour, which a normal layover absorbs.

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 81.2% on time across 140 flights, 10 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 10 points of difference.

One caution: this is a thin sample. 141 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 Frontier on JFK to LAX

Put together: treat all of this as provisional. 141 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 70.8% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 137 completed flights over 12 months sit behind that.

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated 22 October 2026; recomputed monthly. How this data is collected.

Key figures