United Airlines
Is UA3852 delayed?
No delay reported yet. UA3852 is scheduled to leave Ontario at 09:42 on Nov 14 and reach San Francisco at 10:46 (as of Nov 14, 17:23 UTC). Of its last 3 arrivals, 2 landed more than 15 min late.
No live update yet
Showing the published schedule until live times come in.
Update time unavailable
Departure
Ontario
ONT
Scheduled
Nov 14
Arrival
San Francisco
SFO
Scheduled
Nov 14
Times shown in airport local time
Service date: · Scheduled departure date (America/Los_Angeles)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 57 min early
Seoul → San Francisco
- 20 min late
Baltimore → Dulles
- 40 min late
Washington → Houston
Is UA3852 usually late?
Period: Oct 15, 2026 – Nov 14, 2026
Percentages and delay figures appear once 10 arrivals are recorded.
On time means arriving no more than 15 minutes after the scheduled time; late means more than 15 minutes after. Cancelled and diverted flights are counted apart from arrivals. Compares scheduled and actual arrival times. Cancelled and diverted flights are left out. Some flights may be missing.
At the airports today
San Francisco (SFO) departures
- Left more than 15 min late
- 28 of 65
- Cancelled today
- 43
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Nov 12, 2026Arrived | Seoul | San Francisco | -57 | |
| Nov 1, 2026Arrived | Baltimore | Dulles | 20 | |
| Oct 26, 2026Arrived | Washington | Houston | 40 | |
| Oct 25, 2026Arrived | Milan | San Francisco | Not available | |
| Oct 22, 2026Cancelled | Edmonton | Seattle | Not available | Not available |
| Oct 21, 2026Cancelled | Kalispell | Denver | Not available | Not available |