UA1665: United flight 1665
San Francisco (SFO) → Boston (BOS) · departs 11:20p, lands 8:16a +1 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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UA1665 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 |
|---|---|---|---|---|
| SFO → BOSSan Francisco to Boston | 11:20p | 8:16a +1 | 5h56m | Daily |
Other nonstops from San Francisco to Boston
The departures either side of UA1665. Times are San Francisco time.
| Flight | Departs | Days |
|---|---|---|
| Delta DL860 | 3:00p | Daily |
| United UA796 | 9:15p | Mon, Wed, Thu, Fri, Sun |
| JetBlue | 9:37p | Mon, Tue, Wed, Thu, Fri, Sun |
| This flight UA1665 | 11:20p | Daily |
All 17 flights from SFO to BOS, by time →
Flying back from Boston
United flies Boston to San Francisco nonstop 44 times a week, from 6:00a to 6:17p: 6:00a UA2441 · 9:20a UA726 · 11:30a UA1074 · 4:15p UA754 · 6:17p UA2400 · every nonstop BOS → SFO →
How UA1665 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 UA1665 leave San Francisco?
UA1665 is scheduled to depart San Francisco (SFO) at 11:20p (daily), San Francisco time, and to land in Boston (BOS) at about 8:16a the next day local time, a scheduled 5h56m. Times are the published ones from the flights we sampled Oct 4–10; check United for today's.
Does UA1665 fly every day?
Yes — UA1665 flew San Francisco to Boston every day of the week we sampled (Oct 4–10).
Is UA1665 usually on time?
Of 7 UA1665 departures from SFO 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 San Francisco
Timetable from United departures we observed; UA1665 is a United Airlines flight number, and Hop Nonstop is not affiliated with United. Schedules change — confirm with the airline before you travel.