UA4291 BuffaloBUF · 14:55 WashingtonIAD · 16:21
UA4291 by United Airlines flies from Buffalo (BUF) to Washington (IAD).
scheduled from BUF
⚖ UA4291 typically leaves +12 and lands −22. The air wins minutes back.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 −22 min · 0 cancelled · 12 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at BUF and IAD 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 Buffalo
ForecastWed 11 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 Washington
ForecastWed 11 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.
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Buffalo to Washington flights today
same route · United AirlinesIf UA4291 is cancelled, these are the other United Airlines nonstop flights from Buffalo to Washington on the same day, with scheduled departure times in BUF 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 UA4291 actually runs
Pro Flight Search has tracked every published board update for UA4291 across the BUF and IAD boards: schedule changes, gate pushes and actual clocks. Usually lands ~15 min early. Based on 12 confirmed landings · 11/12 within 15 min of schedule. Pushes back late but makes up time in the air.
The verdict above is that record speaking, so it reflects how UA4291 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: N17169, N21197, N16151, N16170.
Board clocks recorded as BUF and IAD published them.
Planning around UA4291? 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: UA4291 Buffalo to Washington on-time performance, measured from the BUF and IAD airport boards.
https://proflightsearch.com/flight/UA4291
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