UA2121: United flight 2121
Denver (DEN) → Grand Rapids (GRR) · departs 5:47p, lands 10:23p 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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UA2121 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 → GRRDenver to Grand Rapids | 5:47p | 10:23p | 2h36m | Daily |
Other nonstops from Denver to Grand Rapids
The departures either side of UA2121. Times are Denver time.
| Flight | Departs | Days |
|---|---|---|
| United UA2637 | 10:08a | Daily |
| Frontier | 10:38a | Tue, Thu, Sat, Sun |
| This flight UA2121 | 5:47p | Daily |
All 7 flights from DEN to GRR, by time →
Flying back from Grand Rapids
United flies Grand Rapids to Denver nonstop 14 times a week, from 8:00a to 3:54p: 8:00a UA2648 · 3:54p UA2745 · every nonstop GRR → DEN →
How UA2121 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 7 of 7.
What time does UA2121 leave Denver?
UA2121 is scheduled to depart Denver (DEN) at 5:47p (daily), Denver time, and to land in Grand Rapids (GRR) at about 10:23p local time, a scheduled 2h36m. Times are the published ones from the flights we sampled Oct 14–20; check United for today's.
What plane is UA2121?
Boeing 737 MAX 9 on 7 of the 7 UA2121 flights from DEN we sampled Oct 14–20. Airlines swap aircraft, so the plane on a given day can differ.
Does UA2121 fly every day?
Yes — UA2121 flew Denver to Grand Rapids every day of the week we sampled (Oct 14–20).
Is UA2121 usually on time?
Of 7 UA2121 departures from DEN 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 Denver
Timetable from United departures we observed; UA2121 is a United Airlines flight number, and Hop Nonstop is not affiliated with United. Schedules change — confirm with the airline before you travel.