Flight number record
F9 1157
Frontier Airlines · Newark to Atlanta
- Route
- EWR → ATL
- Departs
- 22:30
- Flights
- 345
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s F9 1157, check with Frontier Airlines.
F9 1157 sits in the middle of the pack with a C−. About seven flights in ten arrive on time by the DOT's definition, 8 points worse than the national rate of 77.6%. The late ones land an hour and a half behind schedule. That rests on 345 flights, with a median arrival 10 minutes early.
The national on-time rate over the same period is 77.6%, so F9 1157 runs 8 points behind the country as a whole. Across a thousand flights that is about 78 extra late arrivals.
Key figures
On time
69.8%
Arrivals under 15 minutes late, of 331 completed flights
Avg delay
98 min
Across delayed arrivals only, not all flights
Cancelled
3.77%
National rate is 1.81%
1 hour+ late
15.7%
National rate is 8.1%
These figures cover 345 flights between July 2025 and June 2026. Beyond the headline rate, 15.7% 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 1157 flies
F9 1157 flies EWR to ATL without a single fixed slot. Its most common scheduled departure was 22:30, used on 90 of 345 flights, with 22:29 (88 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 22:3090 flights26.1%
- Departs 22:2988 flights25.5%
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 22:30 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and F9 1157 runs level with that at 69.8%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
Against the route
F9 1157 next to EWR to ATL
Every carrier on EWR to ATL combined arrived on time 77.6% of the time across 6,290 flights, so F9 1157 is 8 points behind it. Frontier flew 708 flights on the same city pair under all its flight numbers, including this one, and those ran 70.1% on time. Across its whole network Frontier Airlines managed 73.2%, which this flight trails by 3 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| F9 1157thin sample | 345 | 69.8% | 98 min | 3.77% | C− |
| All Frontier Airlines on EWR–ATL | 708 | 70.1% | 84 min | 3.11% | C− |
| All carriers on EWR–ATL | 6,290 | 77.6% | 84 min | 3.39% | B− |
| Frontier Airlines, whole network | 205,332 | 73.2% | 84 min | 1.85% | 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 78.9% on time and its weakest Oct–Dec 2025 at 58.6%, a swing of 20 points on roughly 86 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 202592 flights78.9%
- Oct–Dec 202592 flights58.6%
- Jan–Mar 202673 flights68.6%
- Apr–Jun 202688 flights72.6%
Scale runs 50% to 85%. Rows with fewer than 30 flights show a dash.
By weekday, F9 1157 did best on Thursday at 79.2% on time and worst on Sunday at 60.9%. Each day rests on about 49 flights, so a gap of 18 points is worth noticing but could still narrow in another year.
Delay causes
Why F9 1157 runs late
One category carries most of the weight here. Late-arriving aircraft accounts for 71% of the 9,766 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.
- 71%Late-arriving aircraft
- 20%Carrier
- 9%National Airspace System
- 0%Extreme weather
71% 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 9,766 reported delay minutes here, that single category outweighs weather by 71 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 9,766 delay minutes reported on F9 1157.
Cancellations run at 3.77%, against 1.81% nationally. That is about one flight in 25 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. 15.7% 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.
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. 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 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: 3.77% of its 345 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
- EWR to ATL, every carrier and departure
- ATL to EWR, the return direction
- Delta Air Lines 2353 on the same route83.9%
- Frontier Airlines 4601 on the same route70.5%
- Delta Air Lines 2397 on the same route80.4%
- Delta Air Lines 1673 on the same route87.7%
- Delta Air Lines 2325 on the same route83.7%
- Delta Air Lines 2365 on the same route83.2%
- 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.