UA721: United flight 721
Boston (BOS) → Washington (IAD) · departs 2:15p, lands 3:56p 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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UA721 timetable
Published departure and arrival times, each in its airport's local time, from the flights we sampled Oct 4–10.
| Route | Departs | Arrives | Scheduled | Days |
|---|---|---|---|---|
| BOS → IADBoston to Washington | 2:15p | 3:56p | 1h41m | Daily |
Other nonstops from Boston to Washington
The departures either side of UA721. Times are Boston time.
| Flight | Departs | Days |
|---|---|---|
| United UA1734 | 5:45a | Daily |
| United UA2098 | 9:30a | Daily |
| This flight UA721 | 2:15p | Daily |
| United | 5:49p | Mon, Tue, Wed, Thu, Fri, Sun |
| United UA2136 | 7:13p | Daily |
All 5 flights from BOS to IAD, by time →
Flying back from Washington
United flies Washington to Boston nonstop 34 times a week, from 8:50a to 10:25p: 8:50a UA641 · 1:10p UA1392 · 10:15p UA755 · every nonstop IAD → BOS →
How UA721 ran in our sample
5 of 7 departures left within 15 minutes of schedule (Oct 4–10). Only flights that departed are counted: cancellations are not in our data.
What time does UA721 leave Boston?
UA721 is scheduled to depart Boston (BOS) at 2:15p (daily), Boston time, and to land in Washington (IAD) at about 3:56p local time, a scheduled 1h41m. Times are the published ones from the flights we sampled Oct 4–10; check United for today's.
Does UA721 fly every day?
Yes — UA721 flew Boston to Washington every day of the week we sampled (Oct 4–10).
Is UA721 usually on time?
Of 7 UA721 departures from BOS we sampled Oct 4–10, 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 Boston
Timetable from United departures we observed; UA721 is a United Airlines flight number, and Hop Nonstop is not affiliated with United. Schedules change — confirm with the airline before you travel.