United Airlines UA878 Flight Status
According to Trip.com real-time data, the UA878 flight operated by United Airlines on Mar 18, 2026 is scheduled to fly from Hong Kong (HKG) to San Francisco (SFO). The flight is expected to depart at 10:30 PM (local time in Hong Kong, UTC+8) and land at 7:17 PM (local time in San Francisco, UTC-7) .
Tue, Mar 17
Wed, Mar 18
Thu, Mar 19
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Arrived
The flight has arrived 6m late
11128km
12h 25m
Check-in Counter
G
Boarding Gate
50
Arrival Gate
G10
Baggage
9
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Scheduled
Your flight will depart on time.
11128km
12h 25m
Check-in Counter
G1-G36
Boarding Gate
31
Arrival Gate
G2
Baggage
--
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Scheduled
Your flight will depart on time.
12h 25m
Check-in Counter
G
Boarding Gate
--
Arrival Gate
--
Baggage
--
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Information provided by VariFlightVariFlight. For real-time updates, please check airport displays or contact your airline. If this is not your flight, you can browse more options for flights from Hong Kong to San Francisco to find your schedule.
UA878 Aircraft Details
According to Trip.com real-time data, the UA878 flight flying from Hong Kong to San Francisco on 3/18/2026 is operated by the aircraft model Boeing 777-300ER. This aircraft has been in service for 6y, 2m. The aircraft is equipped with 350 seats.
Boeing 777-300ER
Punctuality (Departure)
80%
Punctuality (Arrival)
97%
Early on average
7 minutes
Age
6y, 2m
Seats
350
Flight Distance
--
Economy
Business
Premium Economy
In-Flight Services
Meal included
Seatback entertainment system
Wi-Fi (additional charge)
USB port and power outlet
Seat Information
--
Legroom
43 cm
Seat width
--
Reclining Angle
3-4-3
Seat layout example
In-Flight Services
Meal included
Seatback entertainment system
Wi-Fi (additional charge)
USB port and power outlet
Seat Information
198 cm
More legroom than on 67% of flights
56 cm
Seat width better than on 67% of flights
180°
Reclining Angle Fully reclinable
1-2-1
Seat layout example
In-Flight Services
Meal included
Seatback entertainment system
Wi-Fi (additional charge)
USB port and power outlet
Seat Information
97 cm
Legroom
47 cm
Seat width
140°
Reclining Angle
2-4-2
Seat layout example
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Flight History for UA878
Trip.com historical records show that the last UA878 flight departed on Tue, Mar 17 from HKG at approximately 10:49 PM. This flight is expected to arrrive in SFO at 8:01 PM.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Fri, Mar 13 | Hong Kong (HKG) | San Francisco (SFO) | 77W | 10:45 PM | 7:57 PM | Arrived |
| Sat, Mar 14 | Hong Kong (HKG) | San Francisco (SFO) | 77W | 10:47 PM | 7:54 PM | Arrived |
| Sun, Mar 15 | Hong Kong (HKG) | San Francisco (SFO) | 77W | 10:57 PM | 8:02 PM | Arrived |
| Mon, Mar 16 | Hong Kong (HKG) | San Francisco (SFO) | 77W | 10:56 PM | 7:20 PM | Arrived |
| Tue, Mar 17 | Hong Kong (HKG) | San Francisco (SFO) | 77W | 10:49 PM | 8:01 PM | Arrived |
| Wed, Mar 18 | Hong Kong (HKG) | San Francisco (SFO) | 77W | 10:30 PM | 7:17 PM | Scheduled |
| Thu, Mar 19 | Hong Kong (HKG) | San Francisco (SFO) | 77W | 10:30 PM | 7:55 PM | Scheduled |
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UA878 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of UA878 is 80% (Late on average 22 minutes), and the on-time arrival rate is 97% (Early on average 7 minutes).
On-Time Departures
Punctuality
80%
Late on average 22 minutes
Early
0%
On time
80%
30 mins late
17%
60 mins late
3%
90 mins late
0%
Canceled
0%
On-Time Arrivals
Punctuality
97%
Early on average 7 minutes
Early
50%
On time
47%
30 mins late
3%
60 mins late
0%
90 mins late
0%
Canceled
0%
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Arrival Info: San Francisco Weather & Current Time
Clear
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13°C - 29°C
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-15 hour time difference
Time on arrival: Hong Kong 10:55| San Francisco 19:55
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