| LAST SEEN 1 HOUR 23 MINUTES AGO |
 |  |
Departure (UA3931 Flight Schedule)
Hong Kong, Hong KongHKT 00:00:00 DAY
Arrival (UA3931 Flight Schedule)
San Francisco Intl (SFO/KSFO)
San Francisco, United States
12:48 PDT
Sun 24-May-2026
| LATE 40 hour 3 min |
PDT 00:00:00 DAY
Flight Radar Checker UA 3931
Live Flight Tracker Map
Flight UA3931 from Hong Kong to San Francisco is operated by United Airlines. Scheduled time of departure from Hong Kong Intl is 14:40 HKT and scheduled time of arrival in San Francisco Intl is 12:48 PDT. The duration of the flight is 13 hours 8 minutes.
Flight Finder
from San Francisco to Hong Kong
| Flight | Departure | Arrival |
|---|---|---|
| UA877 05:00 |
San Francisco Intl (SFO) |
Hong Kong Intl (HKG) |
| CX873 06:15 |
San Francisco Intl (SFO) |
Hong Kong Intl (HKG) |
| UA3930 13:10 |
San Francisco Intl (SFO) |
Hong Kong Intl (HKG) |
| UA3935 14:00 |
San Francisco Intl (SFO) |
Hong Kong Intl (HKG) |
| UA869 18:55 |
San Francisco Intl (SFO) |
Hong Kong Intl (HKG) |
| CX879 18:55 |
San Francisco Intl (SFO) |
Hong Kong Intl (HKG) |
History Flight Information for UA3931 from Flight Scanner System
| Date | Flight | Departure Airport | Arrival Airport | Scheduled | Plane | Estimated | ||
|---|---|---|---|---|---|---|---|---|
| Departure | Arrival | Departure | Arrival | |||||
| Sun, 24 May | UA3931 | Hong Kong Intl (HKG) | San Francisco Intl (SFO) | 14:40 HKT | 12:48 PDT | N78001 (Boeing B772) | 14:50 HKT | 03:41 PDT |
| Sun, 10 May | UA3931 | Kona Intl At Keahole (KOA) | San Francisco Intl (SFO) | 16:30 HST | 00:38 PDT | N56859 (Boeing B753) | 22:28 HST | 02:02 PDT |
| Mon, 04 May | UA3931 | Los Angeles Intl (LAX) | San Francisco Intl (SFO) | 17:30 PDT | 18:59 PDT | 18:52 PDT | 20:09 PDT | |
| Mon, 04 May | UA3931 | San Francisco Intl (SFO) | Los Angeles Intl (LAX) | 13:00 PDT | 14:42 PDT | N24972 ( B789) | 13:04 PDT | 14:25 PDT |
| Wed, 29 Apr | UA3931 | Denver Intl (DEN) | Grand Junction Regional (GJT) | 21:00 MDT | 22:08 MDT | |||
| Tue, 28 Apr | UA3931 | George Bush Intercontinental (IAH) | Washington Dulles Intl (IAD) | 09:30 CDT | 13:22 EDT | |||
| Sat, 25 Apr | UA3931 | Richmond Intl (RIC) | Chicago Ohare Intl (ORD) | 05:30 EDT | 06:34 CDT | |||
| Mon, 20 Apr | UA3931 | Chicago Ohare Intl (ORD) | La Guardia (LGA) | 06:00 CDT | 09:08 EDT | N27239 (Boeing B738) | 06:09 CDT | 08:44 EDT |
| Fri, 17 Apr | UA3931 | Newark Liberty Intl (EWR) | Washington Dulles Intl (IAD) | 10:00 EDT | 10:55 EDT | |||
| Fri, 10 Apr | UA3931 | Sarasota Bradenton Intl (SRQ) | Chicago Ohare Intl (ORD) | 12:30 EDT | 14:24 CDT | N73276 (Boeing B738) | 13:45 EDT | 15:19 CDT |
| Thu, 02 Apr | UA3931 | Chicago Ohare Intl (ORD) | Newark Liberty Intl (EWR) | 09:00 CDT | 12:12 EDT | |||
Disclaimer for UA3931 Flight Radar Data
Flight UA3931 from Hong Kong Intl to San Francisco Intl data is collected from different sources. The data is for informational purposes only and PlaneMapper is not responsible for the accuracy and reliability of flight UA3931 data.
