Flight number record
F9 1157
Frontier Airlines · Newark to Atlanta
- Route
- EWR → ATL
- Departs
- 22:29
- Flights
- 345
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s F9 1157, check with Frontier Airlines.
F9 1157 draws a D−. About one flight in three arrives at least 15 minutes late, and the typical late arrival is close to two hours behind schedule. Build slack into anything you connect to. That rests on 345 flights, with a median arrival 4 minutes early.
The national on-time rate over the same period is 77.3%, so F9 1157 runs 13 points behind the country as a whole. Across a thousand flights that is about 132 extra late arrivals.
Key figures
On time
64.1%
Arrivals under 15 minutes late, of 320 completed flights
Avg delay
115 min
Across delayed arrivals only, not all flights
Cancelled
6.96%
National rate is 1.89%
1 hour+ late
20.3%
National rate is 8.3%
These figures cover 345 flights between September 2025 and August 2026. Beyond the headline rate, 20.3% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When F9 1157 flies
F9 1157 flies EWR to ATL without a single fixed slot. Its most common scheduled departure was 22:29, used on 150 of 345 flights, with 22:30 (90 flights) next.
- Departs 22:29150 flights43.5%
- Departs 22:3090 flights26.1%
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 22:29 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.1%, and F9 1157 runs 6 points worse at 64.1%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
F9 1157 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 1157 is 13 points behind 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 trails by 9 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| F9 1157thin sample | 345 | 64.1% | 115 min | 6.96% | D− |
| 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 1157 quarter by quarter
F9 1157 did not run the same all year. Its best quarter was Jul–Sep 2025 at 90.0% on time and its weakest Jul–Sep 2026 at 36.7%, a swing of 53 points on roughly 69 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 flights90.0%
- Oct–Dec 202592 flights58.6%
- Jan–Mar 202673 flights68.6%
- Apr–Jun 202688 flights72.6%
- Jul–Sep 202662 flights36.7%
Scale runs 30% to 95%.
By weekday, F9 1157 did best on Thursday at 76.6% on time and worst on Sunday at 51.2%. Each day rests on about 49 flights, so a gap of 25 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late F9 1157 runs when it is late
F9 1157 often beats the schedule: 131 of 320 completed flights, 41%, arrived 15 minutes or more early. When F9 1157 is late it tends to be very late: 65 of its 115 late arrivals were an hour or more behind, and 37 were two hours or more.
- 15+ min early131 flights40.9%
- Within 15 min74 flights23.1%
- 15–29 min late21 flights6.6%
- 30–59 min late29 flights9.1%
- 1–2 hours late28 flights8.8%
- 2+ hours late37 flights11.6%
Scale runs 0% to 100%.
Share of 320 completed flights by arrival against schedule.
19 of 118 late departures made up the time and arrived on time, 16% of them. In the other direction, 16 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 1157
The latest arrival of the period was on 7 August 2026, 18 hours 31 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 7 August 2026 | 18 hours 31 minutes | Late-arriving aircraft |
| 31 December 2025 | 18 hours 3 minutes | Carrier |
| 15 July 2026 | 15 hours 55 minutes | Late-arriving aircraft |
| 11 March 2026 | 9 hours 43 minutes | Late-arriving aircraft |
| 17 August 2026 | 3 hours 54 minutes | Late-arriving aircraft |
Delay causes
Why F9 1157 runs late
Late-arriving aircraft accounts for 80% of the 13,000 delay minutes carriers reported here, and the remaining four split what is left.
- 80%Late-arriving aircraft
- 14%Carrier
- 7%National Airspace System
- 0%Extreme weather
80% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 13,000 reported delay minutes here, that single category outweighs weather by 80 to one. The split is drawn from 13,210 delay minutes reported on F9 1157.
Cancellations run at 6.96%, against 1.89% nationally. That is about 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
20.3% 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 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.
Every one of the 345 flights under F9 1157 in the data flew EWR 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. 345 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 1157
For a booking, the cancellation rate is the figure to plan around on F9 1157: 6.96% of its 345 scheduled flights did not operate. A late arrival costs close to two hours, but a cancellation costs the day, so leave a later option open.
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%
- Frontier Airlines 4601 on the same route77.0%
- Delta Air Lines 2397 on the same route81.0%
- 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
- 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.