UA1263: United flight 1263
Ontario (ONT) → Denver (DEN) · departs 1:24p, lands 4:45p 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.
Live status at United →The route
One hop: ONT → DENDrag to pan · scroll with ⌘/Ctrl to zoom · arrow keys when focused
UA1263 timetable
Published departure and arrival times, each in its airport's local time, from the flights we sampled Oct 14–20.
| Route | Departs | Arrives | Scheduled | Days |
|---|---|---|---|---|
| ONT → DENOntario to Denver | 1:24p | 4:45p | 2h21m | Daily |
Other nonstops from Ontario to Denver
The departures either side of UA1263. Times are Ontario time.
| Flight | Departs | Days |
|---|---|---|
| Frontier | 6:15a | Daily |
| Southwest | 8:05a | Mon–Fri |
| Frontier | 11:52a | Mon, Thu, Fri, Sun |
| This flight UA1263 | 1:24p | Daily |
All 17 flights from ONT to DEN, by time →
Flying back from Denver
United flies Denver to Ontario nonstop 14 times a week, from 11:26a to 7:35p: 11:26a UA430 · 7:35p UA2028 · every nonstop DEN → ONT →
How UA1263 ran in our sample
7 of 7 departures left within 15 minutes of schedule (Oct 14–20). Only flights that departed are counted: cancellations are not in our data.
Aircraft: Boeing 737 MAX 9 on 5 of 7; also Airbus A319 (1), Airbus A320 (1).
What time does UA1263 leave Ontario?
UA1263 is scheduled to depart Ontario (ONT) at 1:24p (daily), Ontario time, and to land in Denver (DEN) at about 4:45p local time, a scheduled 2h21m. Times are the published ones from the flights we sampled Oct 14–20; check United for today's.
What plane is UA1263?
Boeing 737 MAX 9 on 5 of the 7 UA1263 flights from ONT we sampled Oct 14–20; the rest were a Airbus A319 or Airbus A320. Airlines swap aircraft, so the plane on a given day can differ.
Does UA1263 fly every day?
Yes — UA1263 flew Ontario to Denver every day of the week we sampled (Oct 14–20).
Is UA1263 usually on time?
Of 7 UA1263 departures from ONT we sampled Oct 14–20, 7 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 Ontario
Timetable from United departures we observed; UA1263 is a United Airlines flight number, and Hop Nonstop is not affiliated with United. Schedules change — confirm with the airline before you travel.