Flight number record
F9 4347
Frontier Airlines · New York to Atlanta
- Route
- LGA → ATL
- Departs
- 22:00
- Flights
- 285
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s F9 4347, check with Frontier Airlines.
F9 4347 earns a D−, which is as low as this site's scale goes for a reason. Only 55.3% of flights arrive inside the 15-minute window, 22 points worse than the national rate of 77.3%. Late arrivals average about 2.3 hours. Treat any tight connection here as a coin flip. That rests on 285 flights, with a median arrival 10 minutes late.
The national on-time rate over the same period is 77.3%, so F9 4347 runs 22 points behind the country as a whole. Across a thousand flights that is about 220 extra late arrivals.
Key figures
On time
55.3%
Arrivals under 15 minutes late, of 264 completed flights
Avg delay
139 min
Across delayed arrivals only, not all flights
Cancelled
7.37%
National rate is 1.89%
1 hour+ late
28.4%
National rate is 8.3%
These figures cover 285 flights between September 2025 and August 2026. Beyond the headline rate, 28.4% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When F9 4347 flies
F9 4347 flies LGA to ATL without a single fixed slot. Its most common scheduled departure was 22:00, used on 121 of 285 flights, with 12:30 (57 flights) and 11:30 (55 flights) next.
- Departs 22:00121 flights42.5%
- Departs 12:3057 flights20.0%
- Departs 11:3055 flights19.3%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 22:00 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.1%, and F9 4347 runs 15 points worse at 55.3%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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.
Against the route
F9 4347 next to LGA to ATL
Every carrier on LGA to ATL combined arrived on time 75.5% of the time across 8,500 flights, so F9 4347 is 20 points behind it. Frontier flew 949 flights on the same city pair under all its flight numbers, including this one, and those ran 54.0% on time. Across its whole network Frontier Airlines managed 72.7%, which this flight trails by 17 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| F9 4347thin sample | 285 | 55.3% | 139 min | 7.37% | D− |
| All Frontier Airlines on LGA–ATL | 949 | 54.0% | 111 min | 7.69% | F− |
| All carriers on LGA–ATL | 8,500 | 75.5% | 79 min | 4.36% | B− |
| Frontier Airlines, whole network | 213,022 | 72.7% | 84 min | 2.05% | C |
Across the year
F9 4347 quarter by quarter
F9 4347 did not run the same all year. Its best quarter was Jul–Sep 2025 at 70.0% on time and its weakest Jul–Sep 2026 at 29.5%, a swing of 41 points on roughly 57 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 202530 flights70.0%
- Oct–Dec 202574 flights62.0%
- Jan–Mar 202658 flights54.7%
- Apr–Jun 202671 flights59.1%
- Jul–Sep 202652 flights29.5%
Scale runs 20% to 75%.
By weekday, F9 4347 did best on Saturday at 62.5% on time and worst on Monday at 45.7%. Each day rests on about 41 flights, so a gap of 17 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late F9 4347 runs when it is late
When F9 4347 is late it tends to be very late: 75 of its 118 late arrivals were an hour or more behind, and 32 were two hours or more.
- 15+ min early58 flights22.0%
- Within 15 min88 flights33.3%
- 15–29 min late16 flights6.1%
- 30–59 min late27 flights10.2%
- 1–2 hours late43 flights16.3%
- 2+ hours late32 flights12.1%
Scale runs 0% to 100%.
Share of 264 completed flights by arrival against schedule.
19 of 123 late departures made up the time and arrived on time, 15% of them. In the other direction, 14 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 ATL.
The worst days
Worst days for F9 4347
The latest arrival of the period was on 9 November 2025, 22 hours 26 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 9 November 2025 | 22 hours 26 minutes | Late-arriving aircraft |
| 2 August 2026 | 17 hours 44 minutes | National Airspace System |
| 30 October 2025 | 17 hours 35 minutes | Late-arriving aircraft |
| 17 August 2026 | 16 hours 20 minutes | Late-arriving aircraft |
| 12 July 2026 | 13 hours 35 minutes | Extreme weather |
Delay causes
Why F9 4347 runs late
Late-arriving aircraft accounts for 68% of the 16,000 delay minutes carriers reported here, and the remaining four split what is left.
- 68%Late-arriving aircraft
- 18%National Airspace System
- 8%Carrier
- 5%Extreme weather
68% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 16,000 reported delay minutes here, that single category outweighs weather by 14 to one. The split is drawn from 16,425 delay minutes reported on F9 4347.
Cancellations run at 7.37%, against 1.89% nationally. That is roughly one flight in fifteen 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
28.4% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
The 762 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.
Every one of the 285 flights under F9 4347 in the data flew LGA 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. 285 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 4347
For a booking, the cancellation rate is the figure to plan around on F9 4347: 7.37% of its 285 scheduled flights did not operate. A late arrival costs about 2.3 hours, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- LGA to ATL, every carrier and departure
- ATL to LGA, the return direction
- Delta Air Lines 550 on the same route89.4%
- Frontier Airlines 3287 on the same route60.8%
- Delta Air Lines 992 on the same route86.0%
- Delta Air Lines 968 on the same route74.1%
- Delta Air Lines 993 on the same route82.6%
- Delta Air Lines 974 on the same route79.6%
- LaGuardia (LGA) 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
- Why the first flight of the morning is statistically safest
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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.