UA1904: United flight 1904
Chicago (ORD) → Ontario (ONT) · departs 4:15p, lands 6:47p local · Daily
The timetable below has every scheduled departure; for today's flight, check United.
An estimate from the published timetable, not live tracking: it cannot know about delays, diversions or cancellations.
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UA1904 timetable
Published departure and arrival times, each in its airport's local time, from the flights we sampled Oct 25–31.
| Route | Departs | Arrives | Scheduled | Days |
|---|---|---|---|---|
| ORD → ONTChicago to Ontario | 4:15p | 6:47p | 4h32m | Daily |
Flying back from Ontario
United flies Ontario to Chicago nonstop 7 times a week, at 7:00a: 7:00a UA2226 · every nonstop ONT → ORD →
How UA1904 ran in our sample
4 of 7 departures left within 15 minutes of schedule (Oct 25–31). Only flights that departed are counted: cancellations are not in our data.
Aircraft: Airbus A320 on 7 of 7.
What time does UA1904 leave Chicago?
UA1904 is scheduled to depart Chicago (ORD) at 4:15p (daily), Chicago time, and to land in Ontario (ONT) at about 6:47p local time, a scheduled 4h32m. Times are the published ones from the flights we sampled Oct 25–31; check United for today's.
What plane is UA1904?
Airbus A320 on 7 of the 7 UA1904 flights from ORD we sampled Oct 25–31. Airlines swap aircraft, so the plane on a given day can differ.
Does UA1904 fly every day?
Yes — UA1904 flew Chicago to Ontario every day of the week we sampled (Oct 25–31).
Is UA1904 usually on time?
Of 7 UA1904 departures from ORD we sampled Oct 25–31, 4 left within 15 minutes of the scheduled time. That counts only flights that departed — cancellations are not in our data — and one week is a small sample, so treat it as a hint, not a rating.
More United flights from Chicago
Timetable from United departures we observed; UA1904 is a United Airlines flight number, and Hop Nonstop is not affiliated with United. Schedules change — confirm with the airline before you travel.