UA4398 New YorkEWR · 07:30 OttawaYOW
UA4398 by United Airlines flies from New York (EWR) to Ottawa (YOW) for the Mon, Sep 7 departure.
en route from EWR to YOW
board checked 172m ago · checking again in 45s
Board estimate · gate and arrival times. Off blocks 07:26 · typical taxi-out at EWR ≈ 10.8 min.
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 operation0 cancelled · 15 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 New York to Ottawa flights today
same route · United AirlinesIf UA4398 is cancelled, these are the other United Airlines nonstop flights from New York to Ottawa on the same day, with scheduled departure times in EWR local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA4398 actually runs
Pro Flight Search has tracked every published board update for UA4398 across the EWR and YOW boards: schedule changes, gate pushes and actual clocks. Usually departs ~5 min early. Based on 14 confirmed departures · 13/14 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how UA4398 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 EWR and YOW published them.
Planning around UA4398? 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 — UA4398 New York to Ottawa on-time performance, measured from the EWR and YOW airport boards.
https://proflightsearch.com/flight/UA4398
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