Flight number record
F9 4817
Frontier Airlines · New York to Atlanta
- Route
- JFK → ATL
- Departs
- 06:20
- Flights
- 287
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s F9 4817, check with Frontier Airlines.
F9 4817 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 287 flights, with a median arrival 4 minutes early.
The national on-time rate over the same period is 77.6%, so F9 4817 runs 7 points behind the country as a whole. Across a thousand flights that is about 71 extra late arrivals.
Key figures
On time
70.5%
Arrivals under 15 minutes late, of 278 completed flights
Avg delay
71 min
Across delayed arrivals only, not all flights
Cancelled
3.14%
National rate is 1.81%
1 hour+ late
10.1%
National rate is 8.1%
These figures cover 287 flights between July 2025 and June 2026. Beyond the headline rate, 10.1% 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 4817 flies
F9 4817 flies JFK to ATL without a single fixed slot. Its most common scheduled departure was 06:20, used on 100 of 287 flights, with 06:00 (75 flights) and 06:15 (51 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 06:20100 flights34.8%
- Departs 06:0075 flights26.1%
- Departs 06:1551 flights17.8%
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 06:20 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and F9 4817 runs 19 points worse at 70.5%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
Against the route
F9 4817 next to JFK to ATL
Every carrier on JFK to ATL combined arrived on time 76.7% of the time across 4,272 flights, so F9 4817 is 6 points behind it. Frontier flew 737 flights on the same city pair under all its flight numbers, including this one, and those ran 70.5% on time. Across its whole network Frontier Airlines managed 73.2%, which this flight trails by 3 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| F9 4817thin sample | 287 | 70.5% | 71 min | 3.14% | C− |
| All Frontier Airlines on JFK–ATL | 737 | 70.5% | 74 min | 2.17% | C |
| All carriers on JFK–ATL | 4,272 | 76.7% | 77 min | 2.25% | B |
| Frontier Airlines, whole network | 205,332 | 73.2% | 84 min | 1.85% | C |
Across the year
F9 4817 quarter by quarter
F9 4817 did not run the same all year. Its best quarter was Jul–Sep 2025 at 78.7% on time and its weakest Oct–Dec 2025 at 67.8%, a swing of 11 points on roughly 96 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 flights78.7%
- Oct–Dec 202592 flights67.8%
- Jan–Mar 202690 flights70.9%
- Apr–Jun 202613 flights—
Scale runs 60% to 85%. Rows with fewer than 30 flights show a dash.
By weekday, F9 4817 did best on Wednesday at 87.8% on time and worst on Monday at 60.5%. Each day rests on about 41 flights, so a gap of 27 points is worth noticing but could still narrow in another year.
Delay causes
Why F9 4817 runs late
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 5,777 reported delay minutes.
- 41%National Airspace System
- 38%Carrier
- 21%Late-arriving aircraft
- 0%Extreme weather
41% 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 2,344 minutes out of 5,777, against a national NAS share of 21%. The split is drawn from 5,777 delay minutes reported on F9 4817.
Cancellations run at 3.14%, against 1.81% nationally. That is about one flight in 30 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. 10.1% 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 287 flights under F9 4817 in the data flew JFK to ATL. 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. 287 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 4817
For a booking, the cancellation rate is the figure to plan around on F9 4817: 3.14% of its 287 scheduled flights did not operate. A late arrival costs a little over an hour, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- JFK to ATL, every carrier and departure
- ATL to JFK, the return direction
- Delta Air Lines 2286 on the same route89.5%
- Delta Air Lines 2342 on the same route89.7%
- Delta Air Lines 2293 on the same route75.9%
- Delta Air Lines 2227 on the same route85.9%
- Delta Air Lines 2190 on the same route74.9%
- JetBlue Airways 519 on the same route74.6%
- John F. Kennedy International (JFK) delay statistics
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- Frontier Airlines on-time record
- Every Frontier Airlines flight number with a record
- The most and least reliable flight numbers in the US
- How often a connection fails at the major US hubs
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.