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DelayAtlas

Carrier route record

F9ATL→EWR

Frontier Airlines · Atlanta to Newark

Flights
707
Period
September 2025 to August 2026
Share of route
11%
Carriers
5
D−GRADE

Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Frontier Airlines.

Frontier on ATL to EWR draws a D−. Roughly one flight in two arrives at least 15 minutes late, and the typical late arrival is an hour and a half behind schedule. Build slack into anything you connect to. That rests on 707 flights. The strongest carrier on the route with a full sample, United Airlines, flew 2,024 at 79.0% on time.

The national on-time rate over the same period is 77.3%, so Frontier on ATL to EWR runs 19 points behind the country as a whole. Across a thousand flights that is about 188 extra late arrivals.

Key figures

On time

58.5%

Arrivals under 15 minutes late, of 675 completed flights

Avg delay

89 min

Across delayed arrivals only, not all flights

Cancelled

4.24%

National rate is 1.89%

Whole route

72.3%

Every carrier on ATL to EWR, 6,246 flights

These figures cover 707 flights between September 2025 and August 2026. Beyond the headline rate, 22.1% of arrivals land a full hour or more behind schedule, against 8.3% nationally.

Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Carrier by carrier

Frontier against every carrier on ATL to EWR

Frontier flew 707 of the 6,246 flights on ATL to EWR, about 11% of it. Its 58.5% on time is 14 points worse than the route as a whole, which runs 72.3%. Ranked by on-time rate it is last of five carriers on the route, where the range runs from Republic at 81.7% to Frontier at 58.5%. Two of those carriers flew fewer than 365 flights here, so treat their positions as rough.

The choice of carrier is not cosmetic here. United Airlines arrives on time 79.0% of the time; Delta Air Lines manages 71.5%. Sample sizes sit next to every figure, because a two-point gap across 3,038 flights means less than a ten-point one.

On-time performance by carrier on ATL to EWR
AirlineFlightsOn timeAvg delayCancelledGrade
Republic Airwaysthin sample11981.7%128 min3.36%B−
United Airlines2,02479.0%90 min2.92%B
Delta Air Lines3,03871.5%69 min3.82%C−
Spirit Airlinesthin sample35864.0%72 min7.54%D−
Frontier Airlines (this page)70758.5%89 min4.24%D−

Delta Air Lines cancels 3.8% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.

Flight by flight

Frontier flight numbers on ATL to EWR

Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Departure window

When Frontier runs best on this route

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 37 points, against 8 points between the best and worst carrier.

  • 5am–8am31 flights90.3%
  • 8am–11am56 flights83.6%
  • 11am–2pm—
  • 2pm–5pm—
  • 5pm–8pm257 flights53.2%
  • 8pm–5am363 flights55.4%

Scale runs 45% to 95%. Rows with fewer than 30 flights show a dash.

The 5pm–8pm window is where this operation falls apart: 53.2% on time, against 90.3% for the 5am–8am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 8pm–5am window is the busiest, with 363 flights scheduled in it.

Across the year

Frontier on ATL to EWR through the year

On-time rate by calendar month66J71F56M72A71M43J22J39A78S79O64N39D
Darker means more delays. Figures are on-time percentages.October best, July worst

July is the worst month at 22.2% on time, 57 points below October, the best at 79.0%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. May was the busiest month here, with 62 flights.

Across the week, Wednesday is the strongest day at 69.9% on time and Sunday the weakest at 47.8%, a spread of 22 points.

On-time rate by day of the week56.7Mon55.6Tue69.9Wed60.2Thu61.5Fri58.0Sat47.8Sun
Monday: 56.7 percent on time. Tuesday: 55.6 percent on time. Wednesday: 69.9 percent on time. Thursday: 60.2 percent on time. Friday: 61.5 percent on time. Saturday: 58.0 percent on time. Sunday: 47.8 percent on time

Arrival by arrival

How late Frontier on ATL to EWR runs when it is late

Frontier on ATL to EWR often beats the schedule: 187 of 675 completed flights, 28%, arrived 15 minutes or more early. When Frontier on ATL to EWR is late it tends to be very late: 149 of its 280 late arrivals were an hour or more behind, and 70 were two hours or more.

  • 15+ min early187 flights27.7%
  • Within 15 min208 flights30.8%
  • 15–29 min late59 flights8.7%
  • 30–59 min late72 flights10.7%
  • 1–2 hours late79 flights11.7%
  • 2+ hours late70 flights10.4%

Scale runs 0% to 100%.

Share of 675 completed flights by arrival against schedule.

66 of 330 late departures made up the time and arrived on time, 20% of them. 16 flights left on time and still arrived late.

The worst days

Worst days for Frontier on ATL to EWR

The latest arrival of the period was on 15 July 2026, 16 hours 21 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). Three of the five worst days fell in July 2026.

The latest arrivals of Frontier on ATL to EWR in the period
DateArrived late byLargest filed cause
15 July 202616 hours 21 minutesCarrier
12 December 202511 hours 5 minutesLate-arriving aircraft
7 August 20266 hours 37 minutesNational Airspace System
9 July 20264 hours 24 minutesNational Airspace System
18 July 20264 hours 6 minutesLate-arriving aircraft

Delay causes

Why Frontier runs late on this route

Late-arriving aircraft accounts for 50% of the 25,000 delay minutes carriers reported here, and the remaining four split what is left.

  • Late-arriving aircraft
    50%
  • Carrier
    25%
  • National Airspace System
    23%
  • Extreme weather
    2%

50% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 25,000 reported delay minutes here, that single category outweighs weather by 30 to one. The split is drawn from 24,822 reported delay minutes.

The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 90.3% on time here.

Cancellations run at 4.24%, against 1.89% 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 stage length

What a delay here costs

22.1% 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.

The return leg is a different operation and performs like one: it runs 70.8% on time across 708 flights, 12 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 12 points of difference.

One caution: this is a thin sample. 707 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 Frontier on ATL to EWR

Put together: the delay figures matter less here than the 4.24% cancellation rate. A late arrival costs you an hour and a half; a cancelled flight costs you the day. Book the 5am–8am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 675 completed flights over 12 months sit behind that.

Related

Where to go next

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.