Best Time to Fly ATL to HPN: On-Time Stats by Hour & Airline
Hartsfield-Jackson Atlanta International → Westchester County
Data through July 2026 · Last updated October 18, 2026
717 flights were scheduled from Atlanta (ATL) to White Plains (HPN) in the last 12 months, and 77.5% of those that flew arrived on time, in line with the US average of 77.6%.
Delta Air Lines was the only reporting airline with regular flights on this route.
Over 24 months, Thursday was the most reliable day (84% on time) and July the worst month (69%).
The cancellation rate was 2.6% (US average 1.8%).
ATL to HPN 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 |
|---|---|---|---|---|
| Delta Air Lines | 77.5% | 66 min | 2.6% | 717 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly ATL to HPN
On-time arrival % by scheduled departure hour (local time), 2,057 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | 90.3% | 0.0% | 94 |
| 9am–10am | 83.9% | 1.8% | 723 |
| 11am–12pm | 84.9% | 1.8% | 171 |
| 12pm–1pm | Limited data | 22 | |
| 1pm–2pm | 81.0% | 0.0% | 148 |
| 3pm–4pm | 79.7% | 2.3% | 177 |
| 7pm–8pm | 75.1% | 1.8% | 722 |
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 HPN
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) | 83.7% | +1.6 pts | 0.0% | 49 |
| Christmas & New Year (Dec 20 - Jan 3) | 77.9% | -4.2 pts | 1.3% | 78 |
| Summer peak (Jun 15 - Aug 15) | 74.2% | -7.8 pts | 2.3% | 304 |
| All other days | 82.1% | — | 1.5% | 1,626 |
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).