Live tracking not available yet
UA877 has a schedule in our database but isn't on the airport board right now. Live position data typically appears within a few hours of departure.
Flight Status
Scheduled
Route Info
SFO
San Francisco International Airport
San Francisco
TI Gate G2 Scheduled 11:29 PM
Actual 11:52 PM
HKG
Hong Kong International Airport
Hong Kong
TT1 Gate 63 Scheduled 5:38 AM
Actual 5:11 AM
15h 9m flight time
Daily
Recent Flights
Last 2 observedMar 13
Fri
SFO
HKG
Dep 00:01:00
(actual 00:52:00)
77W
In Air
Mar 09
Mon
SFO
HKG
Dep 23:15:00
(actual 00:22:00)
77W
Boarding
Schedule
Operates
Daily
Departure
11:29 PM
Arrival
5:38 AM
Duration
15h 9m
Aircraft
Boeing 777-300ER
Terminal
TI
TT1
Gate
G2
63
Actual
23:52
05:11
Operating Days
Mo
Tu
We
Th
Fr
Sa
Su
Upcoming
Fri, Mar 20
Sat, Mar 21
Sun, Mar 22
Mon, Mar 23
Tue, Mar 24
Wed, Mar 25
Thu, Mar 26
Schedule valid
Mar 15 —
Jun 14, 2026