UA3509 ChicagoORD · 13:55 OttawaYOW
UA3509 by United Airlines flies from Chicago (ORD) to Ottawa (YOW) for the Tue, Aug 18 departure.
en route from ORD to YOW
board checked 41m ago · checking again in 45s
Board estimate · gate and arrival times. Off blocks 13:46 · typical taxi-out at ORD ≈ 8.1 min.
Where the minutes go
last 5 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 operation0 cancelled · 5 operations tracked
The route today
live boardsWhen it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Chicago to Ottawa flights today
same route · United AirlinesIf UA3509 is cancelled, these are the other United Airlines nonstop flights from Chicago to Ottawa on the same day, with scheduled departure times in ORD local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA3509 actually runs
Pro Flight Search has tracked every published board update for UA3509 across the ORD and YOW boards: schedule changes, gate pushes and actual clocks. Usually departs on time. Based on 5 confirmed departures · 3/5 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how UA3509 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationBoard clocks recorded as ORD and YOW published them.
Planning around UA3509? 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 — UA3509 Chicago to Ottawa on-time performance, measured from the ORD and YOW airport boards.
https://proflightsearch.com/flight/UA3509
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