UA4459 OttawaYOW WashingtonIAD · 11:44
UA4459 by United Airlines flies from Ottawa (YOW) to Washington (IAD).
scheduled from YOW
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 −18 min · 0 cancelled · 13 operations tracked
The route today
live boardsWhen it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
How UA4459 actually runs
Pro Flight Search has tracked every published board update for UA4459 across the YOW and IAD boards: schedule changes, gate pushes and actual clocks. Usually lands ~9 min early. Based on 13 confirmed landings · 10/13 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how UA4459 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: N549GJ, N519GJ, N561GJ, N559GJ.
Board clocks recorded as YOW and IAD published them.
Planning around UA4459? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA4459 Ottawa to Washington on-time performance, measured from the YOW and IAD airport boards.
https://proflightsearch.com/flight/UA4459
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