UA731: United flight 731
Denver (DEN) → Buffalo (BUF) · departs 5:31p, lands 10:43p 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
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UA731 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 |
|---|---|---|---|---|
| DEN → BUFDenver to Buffalo | 5:31p | 10:43p | 3h12m | Daily |
Other nonstops from Denver to Buffalo
The departures either side of UA731. Times are Denver time.
| Flight | Departs | Days |
|---|---|---|
| Southwest | 12:30p | Tue–Wed |
| Southwest | 1:15p | Sun |
| Southwest | 1:50p | Mon, Thu, Fri |
| This flight UA731 | 5:31p | Daily |
All 5 flights from DEN to BUF, by time →
Flying back from Buffalo
United flies Buffalo to Denver nonstop 7 times a week, at 8:50a: 8:50a UA1727 · every nonstop BUF → DEN →
How UA731 ran in our sample
5 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 737-800 on 6 of 7; also Boeing 737 MAX 9 (1).
What time does UA731 leave Denver?
UA731 is scheduled to depart Denver (DEN) at 5:31p (daily), Denver time, and to land in Buffalo (BUF) at about 10:43p local time, a scheduled 3h12m. Times are the published ones from the flights we sampled Oct 14–20; check United for today's.
What plane is UA731?
Boeing 737-800 on 6 of the 7 UA731 flights from DEN we sampled Oct 14–20; the rest were a Boeing 737 MAX 9. Airlines swap aircraft, so the plane on a given day can differ.
Does UA731 fly every day?
Yes — UA731 flew Denver to Buffalo every day of the week we sampled (Oct 14–20).
Is UA731 usually on time?
Of 7 UA731 departures from DEN we sampled Oct 14–20, 5 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 Denver
Timetable from United departures we observed; UA731 is a United Airlines flight number, and Hop Nonstop is not affiliated with United. Schedules change — confirm with the airline before you travel.