Flight number record
F9 3210
Frontier Airlines · Atlanta to Philadelphia
- Route
- ATL → PHL
- Departs
- 08:52
- Flights
- 306
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s F9 3210, check with Frontier Airlines.
F9 3210 sits in the middle of the pack with a B−. Close to three flights in four arrive on time by the DOT's definition, 2 points worse than the national rate of 77.6%. The late ones land an hour and a half behind schedule. That rests on 306 flights, with a median arrival 4 minutes early.
Key figures
On time
75.6%
Arrivals under 15 minutes late, of 295 completed flights
Avg delay
95 min
Across delayed arrivals only, not all flights
Cancelled
3.27%
National rate is 1.81%
1 hour+ late
11.2%
National rate is 8.1%
These figures cover 306 flights between July 2025 and June 2026. Beyond the headline rate, 11.2% 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 3210 flies
F9 3210 flies ATL to PHL without a single fixed slot. Its most common scheduled departure was 08:52, used on 32 of 306 flights. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 08:5232 flights10.5%
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 08:52 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and F9 3210 runs 9 points worse at 75.6%. 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 3210 next to ATL to PHL
Every carrier on ATL to PHL combined arrived on time 74.9% of the time across 5,713 flights, so F9 3210 is about level with it. Frontier flew 1,010 flights on the same city pair under all its flight numbers, including this one, and those ran 62.4% on time. Across its whole network Frontier Airlines managed 73.2%, which this flight beats by 2 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| F9 3210thin sample | 306 | 75.6% | 95 min | 3.27% | B− |
| All Frontier Airlines on ATL–PHL | 1,010 | 62.4% | 84 min | 2.97% | D |
| All carriers on ATL–PHL | 5,713 | 74.9% | 72 min | 2.84% | C |
| Frontier Airlines, whole network | 205,332 | 73.2% | 84 min | 1.85% | C |
Across the year
F9 3210 quarter by quarter
Quarter by quarter F9 3210 held fairly steady: 74.4% in Jul–Sep 2025, 72.6% in Oct–Dec 2025, 77.4% in Jan–Mar 2026 and 80.5% in Apr–Jun 2026. A spread of 8 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202586 flights74.4%
- Oct–Dec 202589 flights72.6%
- Jan–Mar 202689 flights77.4%
- Apr–Jun 202642 flights80.5%
Scale runs 65% to 85%. Rows with fewer than 30 flights show a dash.
By weekday, F9 3210 did best on Tuesday at 88.9% on time and worst on Sunday at 67.4%. Each day rests on about 44 flights, so a gap of 22 points is worth noticing but could still narrow in another year.
Delay causes
Why F9 3210 runs late
One category carries most of the weight here. Late-arriving aircraft accounts for 68% of the 6,871 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.
- 68%Late-arriving aircraft
- 27%Carrier
- 5%National Airspace System
- 0%Extreme weather
68% 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 6,871 reported delay minutes here, that single category outweighs weather by 68 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 6,871 delay minutes reported on F9 3210.
Cancellations run at 3.27%, 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. 11.2% 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 666 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 306 flights under F9 3210 in the data flew ATL to PHL. 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. 306 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 3210
For a booking, the cancellation rate is the figure to plan around on F9 3210: 3.27% of its 306 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.
Related
Where to go next
- ATL to PHL, every carrier and departure
- PHL to ATL, the return direction
- Delta Air Lines 2642 on the same route76.9%
- Delta Air Lines 2270 on the same route86.2%
- Delta Air Lines 1169 on the same route71.3%
- Delta Air Lines 2065 on the same route63.4%
- Frontier Airlines 2298 on the same route64.6%
- Delta Air Lines 1329 on the same route60.4%
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- Philadelphia International (PHL) 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.