Flight number record
F9 4601
Frontier Airlines · Newark to Atlanta
- Route
- EWR → ATL
- Departs
- 05:55
- Flights
- 363
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s F9 4601, check with Frontier Airlines.
F9 4601 lands a B, level with the national rate of 77.3%. Roughly one flight in four arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 363 flights, with a median arrival 9 minutes early.
Key figures
On time
77.0%
Arrivals under 15 minutes late, of 352 completed flights
Avg delay
66 min
Across delayed arrivals only, not all flights
Cancelled
2.48%
National rate is 1.89%
1 hour+ late
7.4%
National rate is 8.3%
These figures cover 363 flights between September 2025 and August 2026. The median arrival is 9 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Schedule
When F9 4601 flies
F9 4601 flies EWR to ATL without a single fixed slot. Its most common scheduled departure was 05:55, used on 142 of 363 flights, with 05:59 (75 flights) and 06:00 (74 flights) next.
- Departs 05:55142 flights39.1%
- Departs 05:5975 flights20.7%
- Departs 06:0074 flights20.4%
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 05:55 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and F9 4601 runs 12 points worse at 77.0%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
F9 4601 next to EWR to ATL
Every carrier on EWR to ATL combined arrived on time 76.9% of the time across 6,252 flights, so F9 4601 is about level with it. Frontier flew 708 flights on the same city pair under all its flight numbers, including this one, and those ran 70.8% on time. Across its whole network Frontier Airlines managed 72.7%, which this flight beats by 4 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| F9 4601thin sample | 363 | 77.0% | 66 min | 2.48% | B |
| All Frontier Airlines on EWR–ATL | 708 | 70.8% | 95 min | 4.66% | C− |
| All carriers on EWR–ATL | 6,252 | 76.9% | 89 min | 3.85% | B− |
| Frontier Airlines, whole network | 213,022 | 72.7% | 84 min | 2.05% | C |
Across the year
F9 4601 quarter by quarter
F9 4601 did not run the same all year. Its best quarter was Jul–Sep 2026 at 93.3% on time and its weakest Oct–Dec 2025 at 68.6%, a swing of 25 points on roughly 73 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 flights83.3%
- Oct–Dec 202591 flights68.6%
- Jan–Mar 202690 flights70.9%
- Apr–Jun 202690 flights77.8%
- Jul–Sep 202662 flights93.3%
Scale runs 60% to 100%.
By weekday, F9 4601 did best on Tuesday at 85.7% on time and worst on Sunday at 64.0%. Each day rests on about 52 flights, so a gap of 22 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late F9 4601 runs when it is late
F9 4601 often beats the schedule: 143 of 352 completed flights, 41%, arrived 15 minutes or more early. The 81 late arrivals split 28 under half an hour, 27 between 30 and 60 minutes, and 26 an hour or more.
- 15+ min early143 flights40.6%
- Within 15 min128 flights36.4%
- 15–29 min late28 flights8.0%
- 30–59 min late27 flights7.7%
- 1–2 hours late17 flights4.8%
- 2+ hours late9 flights2.6%
Scale runs 0% to 100%.
Share of 352 completed flights by arrival against schedule.
10 of 35 late departures made up the time and arrived on time, 29% of them. In the other direction, 56 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 4601
The latest arrival of the period was on 13 December 2025, 6 hours 50 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. Three of the five worst days fell in December 2025.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 13 December 2025 | 6 hours 50 minutes | Late-arriving aircraft |
| 10 December 2025 | 5 hours 45 minutes | Carrier |
| 14 December 2025 | 4 hours 52 minutes | Extreme weather |
| 6 November 2025 | 4 hours 16 minutes | Late-arriving aircraft |
| 1 February 2026 | 3 hours 8 minutes | Carrier |
Delay causes
Why F9 4601 runs late
National Airspace System accounts for 46% of the 5,321 delay minutes carriers reported here, and the remaining four split what is left.
- 46%National Airspace System
- 37%Carrier
- 12%Late-arriving aircraft
- 5%Extreme weather
The largest share of delay minutes, 37%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,964 of the 5,321 delay minutes reported here. The split is drawn from 5,321 delay minutes reported on F9 4601.
Cancellations sit at 2.48% against a national 1.89%, which is ordinary. Diversions add another 0.55%.
Connections and routes
What a delay on this flight costs
7.4% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.
The 746 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.
The same number turns up on one other city pair in the data, including TYS to ATL (1), but none flew often enough under F9 4601 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to EWR to ATL only.
One caution: this is a thin sample. 363 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 4601
For a booking, read F9 4601 as 77.0% on time with 2.48% cancelled over 363 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- EWR to ATL, every carrier and departure
- ATL to EWR, the return direction
- Delta Air Lines 2353 on the same route83.2%
- Delta Air Lines 2397 on the same route81.0%
- Frontier Airlines 1157 on the same route64.1%
- Delta Air Lines 1673 on the same route85.1%
- Delta Air Lines 2325 on the same route80.9%
- Delta Air Lines 2365 on the same route82.7%
- Newark Liberty International (EWR) 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
- Worst months to fly in the US, ranked by the data
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.