Flight number record

F9 4818

Frontier Airlines · Atlanta to New York

Route: ATL → JFK
Departs: 22:40
Flights: 286
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s F9 4818, check with Frontier Airlines.

F9 4818 earns an F−, which is as low as this site's scale goes for a reason. Only 53.5% of flights arrive inside the 15-minute window, 24 points worse than the national rate of 77.6%. Late arrivals average an hour and a half. Treat any tight connection here as a coin flip. That rests on 286 flights, with a median arrival 12 minutes late.

The national on-time rate over the same period is 77.6%, so F9 4818 runs 24 points behind the country as a whole. Across a thousand flights that is about 241 extra late arrivals.

On time

53.5%

Arrivals under 15 minutes late, of 275 completed flights

Avg delay

85 min

Across delayed arrivals only, not all flights

Cancelled

3.85%

National rate is 1.81%

1 hour+ late

22.5%

National rate is 8.1%

These figures cover 286 flights between July 2025 and June 2026. Beyond the headline rate, 22.5% 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.

Schedule

When F9 4818 flies

F9 4818 flies ATL to JFK without a single fixed slot. Its most common scheduled departure was 22:40, used on 56 of 286 flights, with 22:15 (49 flights) and 22:14 (44 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 22:4056 flights19.6%
Departs 22:1549 flights17.1%
Departs 22:1444 flights15.4%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 22:40 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and F9 4818 runs 17 points worse at 53.5%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

Against the route

F9 4818 next to ATL to JFK

Every carrier on ATL to JFK combined arrived on time 75.3% of the time across 4,263 flights, so F9 4818 is 22 points behind it. Frontier flew 735 flights on the same city pair under all its flight numbers, including this one, and those ran 67.1% on time. Across its whole network Frontier Airlines managed 73.2%, which this flight trails by 20 points.

F9 4818 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
F9 4818thin sample	286	53.5%	85 min	3.85%	F−
All Frontier Airlines on ATL–JFK	735	67.1%	79 min	2.31%	C
All carriers on ATL–JFK	4,263	75.3%	83 min	2.35%	B
Frontier Airlines, whole network	205,332	73.2%	84 min	1.85%	C

Across the year

F9 4818 quarter by quarter

F9 4818 did not run the same all year. Its best quarter was Oct–Dec 2025 at 62.9% on time and its weakest Jul–Sep 2025 at 45.5%, a swing of 17 points on roughly 95 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.

Jul–Sep 202592 flights45.5%
Oct–Dec 202592 flights62.9%
Jan–Mar 202690 flights52.3%
Apr–Jun 202612 flights—

Scale runs 35% to 70%. Rows with fewer than 30 flights show a dash.

By weekday, F9 4818 did best on Thursday at 67.5% on time and worst on Friday at 40.0%. Each day rests on about 41 flights, so a gap of 28 points is worth noticing but could still narrow in another year.

Delay causes

Why F9 4818 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 54% of the 11,000 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.

Late-arriving aircraft
54%
Carrier
33%
National Airspace System
10%
Extreme weather
3%

54% 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 11,000 reported delay minutes here, that single category outweighs weather by 17 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 10,916 delay minutes reported on F9 4818.

Cancellations run at 3.85%, against 1.81% nationally. That is about one flight in 25 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 routes

What a delay on this flight costs

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 22.5% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.

The 760 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

Every one of the 286 flights under F9 4818 in the data flew ATL to JFK. The number was not reused on any other city pair, which makes this a clean record of one route.

One caution: this is a thin sample. 286 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 F9 4818

For a booking, the cancellation rate is the figure to plan around on F9 4818: 3.85% of its 286 scheduled flights did not operate. A late arrival costs an hour and a half, but a cancellation costs the day, so leave a later option open.

Where to go next

A flight number here means Frontier Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.

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