Flight number record
F9 4316
Frontier Airlines · Los Angeles to Atlanta
- Route
- LAX → ATL
- Departs
- 15:28
- Flights
- 263
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s F9 4316, check with Frontier Airlines.
F9 4316 draws a D. Roughly one flight in three arrives at least 15 minutes late, and the typical late arrival is a little over an hour behind schedule. Build slack into anything you connect to. That rests on 263 flights, with a median arrival 6 minutes late.
The national on-time rate over the same period is 77.6%, so F9 4316 runs 15 points behind the country as a whole. Across a thousand flights that is about 154 extra late arrivals.
Key figures
On time
62.2%
Arrivals under 15 minutes late, of 259 completed flights
Avg delay
73 min
Across delayed arrivals only, not all flights
Cancelled
1.52%
National rate is 1.81%
1 hour+ late
12.7%
National rate is 8.1%
These figures cover 263 flights between July 2025 and June 2026. Beyond the headline rate, 12.7% 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 4316 flies
F9 4316 flies LAX to ATL without a single fixed slot. Its most common scheduled departure was 15:28, used on 35 of 263 flights. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 15:2835 flights13.3%
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 15:28 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and F9 4316 runs 10 points worse at 62.2%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Against the route
F9 4316 next to LAX to ATL
Every carrier on LAX to ATL combined arrived on time 78.4% of the time across 5,013 flights, so F9 4316 is 16 points behind it. Frontier flew 520 flights on the same city pair under all its flight numbers, including this one, and those ran 60.1% on time. Across its whole network Frontier Airlines managed 73.2%, which this flight trails by 11 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| F9 4316thin sample | 263 | 62.2% | 73 min | 1.52% | D |
| All Frontier Airlines on LAX–ATL | 520 | 60.1% | 69 min | 1.73% | D |
| All carriers on LAX–ATL | 5,013 | 78.4% | 67 min | 0.92% | B+ |
| Frontier Airlines, whole network | 205,332 | 73.2% | 84 min | 1.85% | C |
Across the year
F9 4316 quarter by quarter
F9 4316 did not run the same all year. Its best quarter was Apr–Jun 2026 at 73.3% on time and its weakest Jan–Mar 2026 at 50.9%, a swing of 22 points on roughly 66 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 202569 flights55.9%
- Oct–Dec 202559 flights66.1%
- Jan–Mar 202657 flights50.9%
- Apr–Jun 202678 flights73.3%
Scale runs 40% to 80%. Rows with fewer than 30 flights show a dash.
By weekday, F9 4316 did best on Tuesday at 81.1% on time and worst on Monday at 53.8%. Each day rests on about 38 flights, so a gap of 27 points is worth noticing but could still narrow in another year.
Delay causes
Why F9 4316 runs late
One category carries most of the weight here. Carrier accounts for 44% of the 7,167 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%Carrier
- 35%Late-arriving aircraft
- 21%National Airspace System
35% 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 7,167 reported delay minutes here, that single category outweighs weather by 35 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 7,167 delay minutes reported on F9 4316.
Cancellations sit at 1.52% against a national 1.81%, which is ordinary. Diversions add another 0.00%.
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. 12.7% 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.
At 1,947 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.
Every one of the 263 flights under F9 4316 in the data flew LAX 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. 263 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 4316
For a booking, F9 4316 is a flight to put a long connection behind. 12.7% of its completed flights arrived an hour or more late, which a short layover will not absorb. If the onward flight is on a separate ticket, the risk sits with you.
Related
Where to go next
- LAX to ATL, every carrier and departure
- ATL to LAX, the return direction
- Delta Air Lines 390 on the same route88.7%
- Delta Air Lines 782 on the same route82.0%
- Delta Air Lines 515 on the same route83.0%
- Delta Air Lines 783 on the same route81.1%
- Delta Air Lines 899 on the same route76.7%
- Delta Air Lines 446 on the same route83.5%
- Los Angeles International (LAX) 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.