UA4187 New YorkEWR · 13:46 BuffaloBUF · 15:10
UA4187 by United Airlines flies from New York (EWR) to Buffalo (BUF).
scheduled from EWR
Where the minutes go
last 7 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The last 30 days
arrival outcome per operationmedian arrival −25 min · 0 cancelled · 7 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at EWR and BUF are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. These figures come from both airports' records under conditions like today's, over the last 90 days.
Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →
Tomorrow at New York
ForecastTue 3 Nov, local date
Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
Tomorrow at Buffalo
ForecastTue 3 Nov, local date
- 71% chance of rain
Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other New York to Buffalo flights today
same route · United AirlinesIf UA4187 is cancelled, these are the other United Airlines nonstop flights from New York to Buffalo on the same day, with scheduled departure times in EWR local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →
How UA4187 actually runs
Pro Flight Search has tracked every published board update for UA4187 across the EWR and BUF boards: schedule changes, gate pushes and actual clocks. Usually lands ~7 min early. Based on 7 confirmed landings · 7/7 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how UA4187 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationAircraft
Recent tails: N561GJ, N565GJ, N583GJ, N503GJ.
Board clocks recorded as EWR and BUF published them.
Planning around UA4187? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search: UA4187 New York to Buffalo on-time performance, measured from the EWR and BUF airport boards.
https://proflightsearch.com/flight/UA4187
.