Route
BUF → EWR
Buffalo Niagara International Airport Newark Liberty International Airport
How punctual is this route?
- On-time arrivals
- 87.9%
- Less than 15 minutes late
- Cancelled
- 5.8%
- Of scheduled flights
- Average delay when late
- 97 min
- Flights arriving 15+ minutes late
- Flights tracked
- 485
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 46%
- Late-arriving aircraft 36%
- Air traffic control & airport 18%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 80.0% | 5 |
| October 2025 | 91.9% | 37 |
| November 2025 | 86.4% | 59 |
| December 2025 | 86.8% | 56 |
| January 2026 | 88.9% | 9 |
| February 2026 | 100.0% | 2 |
| March 2026 | 96.2% | 27 |
| April 2026 | 84.8% | 33 |
| May 2026 | 91.8% | 87 |
| June 2026 | 88.4% | 74 |
| July 2026 | 83.1% | 72 |
| August 2026 | 80.0% | 24 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Republic Airways | 415 | 87.0% | 6.7% | 98 min |
| United Airlines | 70 | 92.9% | 0.0% | 87 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
YX3444
13% late · 71 flights
-
YX3420
9% late · 65 flights
-
YX3716
27% late · 63 flights
-
YX3489
12% late · 52 flights
-
YX3715
14% late · 40 flights
-
UA2622
11% late · 36 flights
-
YX3442
19% late · 35 flights
-
YX3670
9% late · 34 flights
-
UA1739
3% late · 30 flights
-
YX3527
3% late · 30 flights
-
YX3521
5% late · 23 flights
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