Carrier route record

F9LAS→JFK

Frontier Airlines · Las Vegas to New York

Flights: 202
Period: July 2025 to June 2026
Share of route: 5%
Carriers: 4

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

Frontier on LAS to JFK lands a B+, 4 points better than the national rate of 77.6%. Roughly one flight in five arrives 15 minutes late or worse, and those flights are late by about an hour on average. That is a workable record, not a spotless one. That rests on 202 flights. The strongest carrier on the route with a full sample, Delta Air Lines, flew 1,676 at 84.2% on time.

Delta Air Lines is the most reliable of the three carriers covered here at 84.2% on time across 1,676 flights.

On time

81.5%

Arrivals under 15 minutes late, of 200 completed flights

Avg delay

57 min

Across delayed arrivals only, not all flights

Cancelled

0.99%

National rate is 1.81%

Whole route

81.3%

Every carrier on LAS to JFK, 3,710 flights

These figures cover 202 flights between July 2025 and June 2026. The median arrival is 14 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.

Carrier by carrier

Frontier against every carrier on LAS to JFK

Frontier flew 202 of the 3,710 flights on LAS to JFK, about 5% of it. Its 81.5% on time is about level with the route as a whole at 81.3%. Ranked by on-time rate it is number two of four carriers on the route, where the range runs from Delta at 84.2% to American at 78.6%.

The three carriers here are closely matched: 6 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 LAS to JFK
Airline	Flights	On time	Avg delay	Cancelled	Grade
Delta Air Lines	1,676	84.2%	78 min	2.45%	B
Frontier Airlines (this page)thin sample	202	81.5%	57 min	0.99%	B+
JetBlue Airways	1,373	78.6%	92 min	2.77%	B
American Airlines	459	78.6%	107 min	1.74%	B

No carrier stands out. Delta tops the table at 84.2%, 6 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 202 flights.

The overnight block holds up unusually well at 81.5% on time across 202 flights. Red-eyes fly into empty airspace and empty gates, and they are the first rotation of the aircraft's day rather than the last. The 8pm–5am window is the busiest, with 202 flights scheduled in it.

Across the year

Frontier on LAS to JFK through the year

Jul–Sep 202592 flights84.6%
Oct–Dec 202592 flights81.3%
Jan–Mar 202618 flights—

Scale runs 75% 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 81.5% on time across 202 flights.

Split by quarter, Frontier on LAS to JFK logged 92 flights in Jul–Sep 2025, 92 flights in Oct–Dec 2025 and 18 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 81.5% annual figure is the one to use.

Delay causes

Why Frontier runs late on this route

One category carries most of the weight here. Carrier accounts for 51% of the 2,102 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.

Carrier
51%
Late-arriving aircraft
38%
National Airspace System
11%

38% 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 2,102 reported delay minutes here, that single category outweighs weather by 38 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 2,102 reported delay minutes.

The largest share of delay minutes, 51%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 1,069 of the 2,102 delay minutes reported here.

Cancellations sit at 0.99% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and stage length

What a delay here costs

5.5% 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 about an hour, which a normal layover absorbs.

At 2,248 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 65.0% on time across 203 flights, 17 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 17 points of difference.

One caution: this is a thin sample. 202 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 LAS to JFK

Put together: treat all of this as provisional. 202 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 81.5% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 200 completed flights over 12 months sit behind that.

Where to go next

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.

Key figures