Best Time to Fly ATL to EWR: On-Time Stats by Hour & Airline
Hartsfield-Jackson Atlanta International → Newark Liberty International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 72.6% of Atlanta (ATL) to Newark (EWR) flights arrived on time (6,265 scheduled flights). That is 5.0 points below the national average of 77.6%.
Republic Airways was the most punctual of the 5 airlines on the route at 79.5%, while Frontier Airlines trailed at 60.4%.
September has been the best month (83% on time) and Sunday the weakest day of the week (65%).
3.5% of flights were cancelled, versus 1.8% nationally.
ATL to EWR on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Republic Airways | 79.5% | 122 min | 2.3% | 130 |
| United Airlines | 79.2% | 81 min | 2.9% | 1,994 |
| Delta Air Lines | 71.6% | 67 min | 3.6% | 3,045 |
| Spirit Airlines | 65.8% | 72 min | 6.9% | 389 |
| Frontier Airlines | 60.4% | 84 min | 3.2% | 707 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly ATL to EWR
On-time arrival % by scheduled departure hour (local time), 12,346 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 72.1% | 4.4% | 90 |
| 6am–7am | 89.6% | 3.0% | 741 |
| 7am–8am | 84.3% | 2.2% | 1,132 |
| 8am–9am | 83.8% | 3.1% | 994 |
| 9am–10am | 83.0% | 2.0% | 398 |
| 10am–11am | 79.0% | 2.0% | 865 |
| 11am–12pm | 79.2% | 1.3% | 626 |
| 12pm–1pm | 73.8% | 2.7% | 1,257 |
| 1pm–2pm | 76.4% | 4.3% | 230 |
| 2pm–3pm | 59.9% | 4.0% | 653 |
| 3pm–4pm | 57.6% | 3.7% | 708 |
| 4pm–5pm | 59.1% | 3.0% | 759 |
| 5pm–6pm | 61.6% | 5.2% | 77 |
| 6pm–7pm | 52.0% | 3.1% | 1,163 |
| 7pm–8pm | 51.1% | 6.3% | 568 |
| 8pm–9pm | 55.8% | 2.7% | 772 |
| 9pm–10pm | 60.4% | 7.0% | 259 |
| 10pm–11pm | 61.2% | 2.6% | 1,054 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on ATL to EWR
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 62.6% | -8.4 pts | 0.8% | 240 |
| Christmas & New Year (Dec 20 - Jan 3) | 69.2% | -1.8 pts | 3.1% | 452 |
| Summer peak (Jun 15 - Aug 15) | 62.3% | -8.7 pts | 6.4% | 2,111 |
| All other days | 71.0% | — | 2.4% | 9,543 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).