Carrier route record
F9JFK→LAX
Frontier Airlines · New York to Los Angeles
- Flights
- 203
- Period
- July 2025 to June 2026
- Share of route
- 2%
- Carriers
- 4
Historical statistics for July 2025 to June 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 77.6%. The late ones land a little over an hour behind schedule. That rests on 203 flights. The strongest carrier on the route with a full sample, American Airlines, flew 3,237 at 80.3% on time.
American Airlines is the most reliable of the three carriers covered here at 80.3% on time across 3,237 flights.
Key figures
On time
70.4%
Arrivals under 15 minutes late, of 199 completed flights
Avg delay
68 min
Across delayed arrivals only, not all flights
Cancelled
1.48%
National rate is 1.81%
Whole route
77.6%
Every carrier on JFK to LAX, 10,284 flights
These figures cover 203 flights between July 2025 and June 2026. Beyond the headline rate, 8.0% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Carrier by carrier
Frontier against every carrier on JFK to LAX
Frontier flew 203 of the 10,284 flights on JFK to LAX, about 2% of it. Its 70.4% on time is 7 points worse than the route as a whole, which runs 77.6%. Ranked by on-time rate it is last of four carriers on the route, where the range runs from American at 80.3% to Frontier at 70.4%.
The three carriers here are closely matched: 5 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.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| American Airlines | 3,237 | 80.3% | 95 min | 2.04% | B |
| Delta Air Lines | 3,358 | 77.5% | 71 min | 1.79% | B |
| JetBlue Airways | 3,486 | 75.6% | 69 min | 2.01% | B |
| Frontier Airlines (this page)thin sample | 203 | 70.4% | 68 min | 1.48% | C |
No carrier stands out. American tops the table at 80.3%, 5 points clear of the bottom, which is inside the range this kind of sample moves year to year.
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 203 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 70.4% is the reliable figure here.
Across the year
Frontier on JFK to LAX through the year
- Jul–Sep 202592 flights72.8%
- Oct–Dec 202592 flights68.5%
- Jan–Mar 202619 flights—
Scale runs 60% to 80%. 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 70.4% on time across 203 flights.
Split by quarter, Frontier on JFK to LAX logged 92 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 70.4% annual figure is the one to use.
Delay causes
Why Frontier runs late on this route
One category carries most of the weight here. Late-arriving aircraft accounts for 44% of the 4,032 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 44%Late-arriving aircraft
- 35%National Airspace System
- 20%Carrier
- 1%Extreme weather
44% 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 4,032 reported delay minutes here, that single category outweighs weather by 33 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 4,032 reported delay minutes.
35% 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 1,422 minutes out of 4,032, against a national NAS share of 21%.
Cancellations sit at 1.48% against a national 1.81%, which is ordinary. Diversions add another 0.49%.
Connections and stage length
What a delay here costs
8.0% of arrivals land an hour or more late, close to the national 8.1%. 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.
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 75.5% on time across 202 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.
One caution: this is a thin sample. 203 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. 203 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 70.4% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 199 completed flights over 12 months sit behind that.
Related
Where to go next
- JFK to LAX, every carrier
- Frontier on LAX to JFK, the return leg
- American Airlines on JFK to LAX80.3%
- Delta Air Lines on JFK to LAX77.5%
- JetBlue Airways on JFK to LAX75.6%
- Frontier Airlines network-wide record
- John F. Kennedy International (JFK) delay statistics
- Los Angeles International (LAX) delay statistics
- Why the first flight of the morning is statistically safest
- Connecting flights: how much buffer the data says you need
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.