UA641: United flight 641
Washington Dulles (IAD) → Boston (BOS) · departs 8:50a, lands 10:32a 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: IAD → BOSDrag to pan · scroll with ⌘/Ctrl to zoom · arrow keys when focused
UA641 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 |
|---|---|---|---|---|
| IAD → BOSWashington Dulles to Boston | 8:50a | 10:32a | 1h42m | Daily |
Other nonstops from Washington Dulles to Boston
The departures either side of UA641. Times are Washington Dulles time.
| Flight | Departs | Days |
|---|---|---|
| This flight UA641 | 8:50a | Daily |
| United UA1392 | 1:10p | Daily |
| United | 3:09p | Mon, Tue, Wed, Thu, Fri, Sun |
| United UA688 | 5:15p | Daily |
All 6 flights from IAD to BOS, by time →
Flying back from Boston
United flies Boston to Washington Dulles nonstop 34 times a week, from 5:45a to 7:13p: 5:45a UA1734 · 9:30a UA2098 · 2:15p UA721 · 7:13p UA2136 · every nonstop BOS → IAD →
How UA641 ran in our sample
6 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 UA641 leave Washington Dulles?
UA641 is scheduled to depart Washington Dulles (IAD) at 8:50a (daily), Washington Dulles time, and to land in Boston (BOS) at about 10:32a local time, a scheduled 1h42m. Times are the published ones from the flights we sampled Oct 14–20; check United for today's.
What plane is UA641?
Boeing 737 MAX 9 on 7 of the 7 UA641 flights from IAD we sampled Oct 14–20. Airlines swap aircraft, so the plane on a given day can differ.
Does UA641 fly every day?
Yes — UA641 flew Washington Dulles to Boston every day of the week we sampled (Oct 14–20).
Is UA641 usually on time?
Of 7 UA641 departures from IAD we sampled Oct 14–20, 6 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 Washington Dulles
Timetable from United departures we observed; UA641 is a United Airlines flight number, and Hop Nonstop is not affiliated with United. Schedules change — confirm with the airline before you travel.