Best Time to Fly BUF to EWR: On-Time Stats by Hour & Airline
Buffalo Niagara International → Newark Liberty International
Data through July 2026 · Last updated October 18, 2026
482 flights were scheduled from Buffalo (BUF) to Newark (EWR) in the last 12 months, and 87.8% of those that flew arrived on time, 10.1 points above the US average of 77.6%.
Among 2 airlines, United Airlines led with 88.8% on time and Republic Airways was last with 87.5%.
Over 24 months, Friday was the most reliable day (93% on time) and December the worst month (79%).
The cancellation rate was 5.0% (US average 1.8%).
BUF 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 |
|---|---|---|---|---|
| United Airlines | 88.8% | 78 min | 0.0% | 89 |
| Republic Airways | 87.5% | 93 min | 6.1% | 393 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BUF to EWR
On-time arrival % by scheduled departure hour (local time), 1,074 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | Limited data | 1 | |
| 6am–7am | 90.5% | 2.1% | 573 |
| 8am–9am | Limited data | 8 | |
| 10am–11am | 94.1% | 3.8% | 106 |
| 11am–12pm | 89.3% | 0.9% | 113 |
| 12pm–1pm | Limited data | 18 | |
| 1pm–2pm | 88.9% | 0.0% | 72 |
| 4pm–5pm | 87.3% | 1.6% | 64 |
| 6pm–7pm | Limited data | 4 | |
| 7pm–8pm | 76.6% | 18.3% | 115 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on BUF 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) | Limited data | 25 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 78.4% | -12.0 pts | 7.5% | 40 |
| Summer peak (Jun 15 - Aug 15) | 84.4% | -6.0 pts | 10.4% | 230 |
| All other days | 90.3% | — | 1.7% | 779 |
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).