Route reliability record
EWR→ATL
Newark to Atlanta
- Flights
- 6,252
- Period
- September 2025 to August 2026
- Distance
- 746 mi
- Carriers
- 5
This route carries a cancellation problem, not just a delay problem: 3.9% of scheduled flights never operate, against 1.9% nationally. Of the ones that do fly, close to three flights in four arrive on time, worth a B− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 6,252 EWR to ATL flights, of which Delta Air Lines flew 3,038 at 79.3% on time.
Best time to fly EWR to ATL: a 5am–8am departure, ideally on a Wednesday. Flights in that window arrived on time 84.3% of the time and Wednesday flights 83.6%, against 76.9% for the route overall.
Delta Air Lines is the most reliable of the three carriers covered here at 79.3% on time across 3,038 flights.
Key figures
On time
76.9%
Arrivals under 15 minutes late, of 5,989 completed flights
Avg delay
89 min
Across delayed arrivals only, not all flights
Cancelled
3.85%
National rate is 1.89%
Best carrier
Delta
79.3% on time across 3,038 flights
These figures cover 6,252 flights between September 2025 and August 2026. Beyond the headline rate, 10.4% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
Which airline is most reliable on EWR to ATL
The choice of carrier is not cosmetic here. Delta Air Lines arrives on time 79.3% of the time; Frontier Airlines manages 70.8%. Sample sizes sit next to every figure, because a two-point gap across 708 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Republic Airwaysthin sample | 119 | 86.1% | 42 min | 2.52% | A |
| Delta Air Lines | 3,038 | 79.3% | 95 min | 3.95% | B− |
| United Airlines | 2,024 | 76.0% | 84 min | 2.67% | B |
| Frontier Airlines | 708 | 70.8% | 95 min | 4.66% | C− |
| Spirit Airlinesthin sample | 363 | 70.1% | 77 min | 8.54% | C− |
Frontier Airlines cancels 4.7% 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 EWR to ATL
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 235306:0083.2% · 365 flights
- Frontier 460105:5577.0% · 363 flights
- Delta 239712:0081.0% · 361 flights
- Frontier 115722:2964.1% · 345 flights
- Delta 167307:0585.1% · 340 flights
- Delta 232510:3980.9% · 338 flights
- Delta 236508:3082.7% · 337 flights
- United 128721:1065.4% · 321 flights
- Delta 232216:2974.1% · 307 flights
- Delta 231217:4969.4% · 305 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 Newark to Atlanta
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. 3 of the top 5 use a different airport at one end.
| Option | Airline | Success | On time | Cancelled | Best departure | Most punctual flight |
|---|---|---|---|---|---|---|
| 1. JFK → ATLNew York to Atlanta | Delta Air Lines | 80.0% | 81.4% | 1.67% | 5am–8am, Wed | DL 2286 06:00 |
| 2. HPN → ATLWhite Plains to Atlanta | Delta Air Lines | 77.5% | 80.1% | 3.21% | 5am–8am, Fri | — |
| 3. LGA → ATLNew York to Atlanta | Delta Air Lines | 76.3% | 79.1% | 3.55% | 5am–8am, Wed | DL 342 06:59 |
| 4. EWR → ATLNewark to Atlanta | Delta Air Lines | 76.2% | 79.3% | 3.95% | 5am–8am, Wed | DL 1673 07:05 |
| 5. EWR → ATLNewark to Atlanta | United Airlines | 74.0% | 76.0% | 2.67% | 5am–8am, Wed | UA 1287 21:10 |
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 21 points, against 9 points between the best and worst carrier.
- 5am–8am1,580 flights84.3%
- 8am–11am993 flights80.7%
- 11am–2pm1,166 flights78.7%
- 2pm–5pm883 flights74.8%
- 5pm–8pm1,026 flights69.4%
- 8pm–5am604 flights62.9%
Scale runs 55% to 90%.
The 8pm–5am window is where this operation falls apart: 62.9% on time, against 84.3% 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 5am–8am window is the busiest, with 1,580 flights scheduled in it.
Explore
Filter EWR to ATL 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 EWR to ATL, the best departure window is 5am–8am at 84.3% on time and the worst is 8pm–5am at 62.9%, a wide gap of 21.4 points. All US flights leaving 5am–8am ran 89.3%.
- 5–8am84.3%
- 8–11am80.7%
- 11am–2pm78.7%
- 2–5pm74.8%
- 5–8pm69.4%
- 8pm–5am62.9%
best all US flightsScale 55% to 95%.
Across the year
When delays peak on this route
This route's year swings by 22 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 64.8% on time, 22 points below April, the best at 86.7%. 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 565 flights.
Across the week, Wednesday is the strongest day at 83.6% on time and Sunday the weakest at 70.0%, a spread of 14 points.
Delay causes
Why this route gets delayed
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 123,000 reported delay minutes.
- 39%Late-arriving aircraft
- 33%Carrier
- 23%National Airspace System
- 5%Extreme weather
- 0%Security
39% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 123,000 reported delay minutes here, that single category outweighs weather by 8 to one. The split is drawn from 123,358 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 84.3% on time here.
Cancellations run at 3.85%, 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
10.4% 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 72.3% on time across 6,246 flights, 5 points below 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 6,252 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 ATL after this flight
What to do with this
Booking this route
Put together: the delay figures matter less here than the 3.85% 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. 5,989 completed flights over 12 months sit behind that.
Common questions
EWR to ATL questions
How often is EWR to ATL 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 23.1% of the 6,252 flights in this analysis, against 22.7% nationally. Delayed flights are late by an hour and a half on average.
Which airline is most reliable on EWR to ATL?
Delta Air Lines leads at 79.3% on time across 3,038 flights. Frontier Airlines is at the other end on 70.8%, a gap of 9 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 EWR to ATL?
The 5am–8am departure window is the strongest at 84.3% on time. The 8pm–5am window is the weakest at 62.9%, 21 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 EWR to ATL?
July is the weakest month at 64.8% on time, compared with 86.7% in April. Across the year that is 22 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
- ATL to EWR — the return legseparate record
- Newark Liberty International (EWR) delay statistics
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- Republic Airways on EWR to ATL86.1%
- Delta Air Lines on EWR to ATL79.3%
- United Airlines on EWR to ATL76.0%
- Frontier Airlines on EWR to ATL70.8%
- Spirit Airlines on EWR to ATL70.1%
- EWR to MCO, a related route77.9%
- LGA to ATL, a related route75.5%
- EWR to ORD, a related route70.7%
- Republic Airways on-time record86.1%
- Delta Air Lines on-time record79.3%
- United Airlines on-time record76.0%
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
Direction matters. EWR to ATL and ATL to EWR are scored separately because they are separate operations, with different departure banks and different aircraft. Compare the return leg.
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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.