UA643: United flight 643
Las Vegas (LAS) → San Francisco (SFO) · departs 6:00a, lands 7:44a 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: LAS → SFODrag to pan · scroll with ⌘/Ctrl to zoom · arrow keys when focused
UA643 timetable
Published departure and arrival times, each in its airport's local time, from the flights we sampled.
| Route | Departs | Arrives | Scheduled | Days |
|---|---|---|---|---|
| LAS → SFOLas Vegas to San Francisco | 6:00a | 7:44a | 1h44m | Daily |
| SFO → SNASan Francisco to Santa Ana | 10:17a | 12:03p | 1h46m | Daily |
| SNA → IAHOrange County to Houston | 3:14p | 8:33p | 3h19m | Daily |
Other nonstops from Las Vegas to San Francisco
The departures either side of UA643. Times are Las Vegas time.
| Flight | Departs | Days |
|---|---|---|
| This flight UA643 | 6:00a | Daily |
| Frontier | 6:30a | Daily |
| United UA2356 | 7:15a | Mon, Tue, Thu, Fri, Sat, Sun |
| United UA1264 | 9:44a | Mon, Wed, Thu, Fri, Sat, Sun |
All 31 flights from LAS to SFO, by time →
Flying back from San Francisco
United flies San Francisco to Las Vegas nonstop 61 times a week, from 7:00a to 10:40p: 7:00a UA1711 · 10:40a UA611 · 2:10p UA2352 · 6:55p UA1995 · 10:40p UA2400 · every nonstop SFO → LAS →
How UA643 ran in our sample
LAS → SFO
7 of 7 departures left within 15 minutes of schedule (Oct 25–31). Only flights that departed are counted: cancellations are not in our data.
Aircraft: Boeing 737 MAX 9 on 7 of 7.
SFO → SNA
6 of 7 departures left within 15 minutes of schedule (Oct 4–10). Only flights that departed are counted: cancellations are not in our data.
Other flights on this route: UA2441 · AS269 · UA589 · all of them →
SNA → IAH
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 737-700 on 7 of 7.
Other flights on this route: UA700 · UA2044 · all of them →
What time does UA643 leave Las Vegas?
UA643 is scheduled to depart Las Vegas (LAS) at 6:00a (daily), Las Vegas time, and to land in San Francisco (SFO) at about 7:44a local time, a scheduled 1h44m. Times are the published ones from the flights we sampled Oct 25–31; check United for today's.
What time does UA643 leave San Francisco?
UA643 is scheduled to depart San Francisco (SFO) at 10:17a (daily), San Francisco time, and to land in Santa Ana (SNA) at about 12:03p local time, a scheduled 1h46m. Times are the published ones from the flights we sampled Oct 4–10; check United for today's.
What time does UA643 leave Orange County?
UA643 is scheduled to depart Orange County (SNA) at 3:14p (daily), Orange County time, and to land in Houston (IAH) at about 8:33p local time, a scheduled 3h19m. Times are the published ones from the flights we sampled Oct 14–20; check United for today's.
What plane is UA643?
Boeing 737 MAX 9 on 7 of the 7 UA643 flights from LAS we sampled Oct 25–31. Airlines swap aircraft, so the plane on a given day can differ.
Does UA643 fly every day?
Yes — UA643 flew Las Vegas to San Francisco every day of the week we sampled (Oct 25–31).
Is UA643 usually on time?
Of 7 UA643 departures from LAS we sampled Oct 25–31, 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 Las Vegas
Timetable from United departures we observed; UA643 is a United Airlines flight number, and Hop Nonstop is not affiliated with United. Schedules change — confirm with the airline before you travel.