Route reliability record
ATL→EWR
Atlanta to Newark
- Flights
- 6,246
- Period
- September 2025 to August 2026
- Distance
- 746 mi
- Carriers
- 5
This route carries a cancellation problem, not just a delay problem: 3.8% of scheduled flights never operate, against 1.9% nationally. Of the ones that do fly, about seven flights in ten arrive on time, worth a C− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 6,246 ATL to EWR flights, of which United Airlines flew 2,024 at 79.0% on time.
Best time to fly ATL to EWR: a 5am–8am departure, ideally on a Wednesday. Flights in that window arrived on time 87.3% of the time and Wednesday flights 80.3%, against 72.3% for the route overall.
United Airlines is the most reliable of the three carriers covered here at 79.0% on time across 2,024 flights.
Key figures
On time
72.3%
Arrivals under 15 minutes late, of 5,982 completed flights
Avg delay
78 min
Across delayed arrivals only, not all flights
Cancelled
3.78%
National rate is 1.89%
Best carrier
United
79.0% on time across 2,024 flights
These figures cover 6,246 flights between September 2025 and August 2026. Beyond the headline rate, 11.8% 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
Which airline is most reliable on ATL to EWR
The choice of carrier is not cosmetic here. United Airlines arrives on time 79.0% of the time; Frontier Airlines manages 58.5%. Sample sizes sit next to every figure, because a two-point gap across 707 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Republic Airwaysthin sample | 119 | 81.7% | 128 min | 3.36% | B− |
| United Airlines | 2,024 | 79.0% | 90 min | 2.92% | B |
| Delta Air Lines | 3,038 | 71.5% | 69 min | 3.82% | C− |
| Spirit Airlinesthin sample | 358 | 64.0% | 72 min | 7.54% | D− |
| Frontier Airlines | 707 | 58.5% | 89 min | 4.24% | D− |
Frontier Airlines cancels 4.2% 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
Flights on ATL to EWR
The flight numbers below flew this route at least 250 times in the period, busiest first. Each has its own record, with its schedule and delay causes.
- Delta 239785.3% · 361 flights
- Delta 232213:0974.5% · 360 flights
- Delta 231214:2371.6% · 359 flights
- Frontier 460222:4055.4% · 359 flights
- Delta 249818:3553.8% · 351 flights
- Frontier 115819:0461.9% · 343 flights
- United 55516:2567.1% · 309 flights
- Delta 255222:5068.5% · 308 flights
- Delta 232507:2581.9% · 301 flights
- Delta 252720:5962.9% · 287 flights
- Delta 234015:3366.7% · 273 flights
- United 29906:0791.9% · 264 flights
- Delta 240110:0584.0% · 253 flights
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.
Best ways to make this trip
The most reliable ways to fly Atlanta to Newark
Every airline on this route and on the routes between nearby airports, ranked by how often a scheduled flight actually operated and arrived on time. 4 of the top 5 use a different airport at one end.
| Option | Airline | Success | On time | Cancelled | Best departure | Most punctual flight |
|---|---|---|---|---|---|---|
| 1. ATL → JFKAtlanta to New York | Delta Air Lines | 77.2% | 78.4% | 1.55% | 8am–11am, Wed | DL 2420 07:43 |
| 2. ATL → EWRAtlanta to Newark | United Airlines | 76.7% | 79.0% | 2.92% | 5am–8am, Wed | UA 299 06:07 |
| 3. ATL → HPNAtlanta to White Plains | Delta Air Lines | 75.4% | 77.6% | 2.79% | 8am–11am, Wed | DL 1616 19:59 |
| 4. ATL → LGAAtlanta to New York | Delta Air Lines | 73.3% | 75.9% | 3.48% | 5am–8am, Wed | DL 404 06:00 |
| 5. ATL → LGAAtlanta to New York | Republic Airways | 71.1% | 75.5% | 5.88% | 5am–8am, Sat | — |
Success is the share of scheduled flights that operated and arrived less than 15 minutes late, so a cancelled flight counts against it. “(route)” means the best time comes from every carrier on the route rather than this airline alone.
Departure window
The best time of day to leave
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 32 points, against 21 points between the best and worst carrier.
- 5am–8am1,001 flights87.3%
- 8am–11am1,056 flights85.2%
- 11am–2pm1,087 flights78.3%
- 2pm–5pm996 flights65.6%
- 5pm–8pm906 flights55.0%
- 8pm–5am1,200 flights61.0%
Scale runs 45% to 95%.
The 5pm–8pm window is where this operation falls apart: 55.0% on time, against 87.3% 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 1,200 flights scheduled in it.
Explore
Filter ATL to EWR by airline, time, month and day
Pick a breakdown and a carrier. The dashed mark on each row is the same slice for every US flight.
On ATL to EWR, the best departure window is 5am–8am at 87.3% on time and the worst is 5pm–8pm at 55.0%, a wide gap of 32.3 points. All US flights leaving 5am–8am ran 89.3%.
- 5–8am87.3%
- 8–11am85.2%
- 11am–2pm78.3%
- 2–5pm65.6%
- 5–8pm55.0%
- 8pm–5am61.0%
best all US flightsScale 45% to 95%.
Across the year
When delays peak on this route
This route's year swings by 27 points from best month to worst, which is wide. An annual average tells you very little about the week you are actually flying, so read the strip rather than the headline if your dates are fixed.
July is the worst month at 56.4% on time, 27 points below September, the best at 83.4%. 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. March was the busiest month here, with 564 flights.
Across the week, Wednesday is the strongest day at 80.3% on time and Sunday the weakest at 65.6%, a spread of 15 points.
Delay causes
Why this route gets delayed
National Airspace System accounts for 42% of the 130,000 delay minutes carriers reported here, and the remaining four split what is left.
- 42%National Airspace System
- 28%Carrier
- 27%Late-arriving aircraft
- 3%Extreme weather
- 0%Security
42% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 55,000 minutes out of 130,000, against a national NAS share of 21%. The split is drawn from 129,890 reported delay minutes.
Cancellations run at 3.78%, 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 actually costs
11.8% 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 76.9% on time across 6,252 flights, 5 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 5 points of difference.
The sample behind these figures is 6,246 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
Work out the risk of missing a connection in EWR after this flight
What to do with this
Booking this route
Put together: the delay figures matter less here than the 3.78% cancellation rate. A late arrival costs you a little over an hour; 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. 5,982 completed flights over 12 months sit behind that.
Common questions
ATL to EWR questions
How often is ATL to EWR delayed?
Roughly one flight in four arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 27.7% of the 6,246 flights in this analysis, against 22.7% nationally. Delayed flights are late by a little over an hour on average.
Which airline is most reliable on ATL to EWR?
United Airlines leads at 79.0% on time across 2,024 flights. Frontier Airlines is at the other end on 58.5%, a gap of 21 points. Sample size matters as much as the percentage: a rate built from a few hundred flights moves around far more than one built from ten thousand.
What time of day has the fewest delays on ATL to EWR?
The 5am–8am departure window is the strongest at 87.3% on time. The 5pm–8pm window is the weakest at 55.0%, 32 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.
How bad are July delays on ATL to EWR?
July is the weakest month at 56.4% on time, compared with 83.4% in September. Across the year that is 27 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.
Related
Where to go next
- EWR to ATL — the return legseparate record
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- Newark Liberty International (EWR) delay statistics
- Republic Airways on ATL to EWR81.7%
- United Airlines on ATL to EWR79.0%
- Delta Air Lines on ATL to EWR71.5%
- Spirit Airlines on ATL to EWR64.0%
- Frontier Airlines on ATL to EWR58.5%
- ATL to LGA, a related route72.3%
- MCO to EWR, a related route75.0%
- ATL to MCO, a related route70.3%
- Republic Airways on-time record81.7%
- United Airlines on-time record79.0%
- Delta Air Lines on-time record71.5%
- The US routes with the most cancellations
- Same route, different airline: where the carrier you pick matters most
Direction matters. ATL to EWR and EWR to ATL are scored separately because they are separate operations, with different departure banks and different aircraft. Compare the return leg.
Embed ATL to EWR’s on-time badge on your site
Paste this into a web page. The badge shows the current on-time rate, cancellation rate and grade, and updates every month. Preview it, or build a badge for another route or airport.
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.