Is UA878 delayed?
Service date: · Scheduled departure date (Asia/Hong_Kong)
Arrived
20 min early
Official source · Updated
Departure
Hong Kong
HKG
Actual
Scheduled 22:51
Sep 7
Arrival
San Francisco
SFO
Actual
Scheduled 20:28
Sep 7
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Actual
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 28 min early
HKG → SFO
- 15 min early
HKG → SFO
- 39 min early
HKG → SFO
- 1 min late
HKG → SFO
- On time
HKG → SFO
Flight history and details
Aug 19, 2026 — Sep 18, 2026
- Observed arrivals
- 26
- Arrivals over 15 minutes late
- 0
- Observed cancellations
- 1
- Observed occurrences
- 29
Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 17, 2026Arrived | Hong Kong | San Francisco | -28 | |
| Sep 16, 2026Arrived | Hong Kong | San Francisco | -15 | |
| Sep 15, 2026Arrived | Hong Kong | San Francisco | -39 | |
| Sep 14, 2026Arrived | Hong Kong | San Francisco | 1 | |
| Sep 13, 2026Arrived | Hong Kong | San Francisco | 0 | |
| Sep 12, 2026Arrived | Hong Kong | San Francisco | -28 | |
| Sep 11, 2026Arrived | Hong Kong | San Francisco | -19 | |
| Sep 10, 2026Arrived | Hong Kong | San Francisco | -2 | |
| Sep 9, 2026Arrived | Hong Kong | San Francisco | -19 | |
| Sep 8, 2026Arrived | Hong Kong | San Francisco | -18 | |
| Sep 7, 2026Arrived | Hong Kong | San Francisco | -20 | |
| Sep 6, 2026Arrived | Hong Kong | San Francisco | -4 | |
| Sep 5, 2026Arrived | Hong Kong | San Francisco | -39 | |
| Sep 4, 2026Arrived | Hong Kong | San Francisco | -35 | |
| Sep 3, 2026Arrived | Hong Kong | San Francisco | -52 | |
| Sep 2, 2026Arrived | Hong Kong | San Francisco | -42 | |
| Sep 1, 2026Arrived | Hong Kong | San Francisco | -45 | |
| Aug 31, 2026Arrived | Hong Kong | San Francisco | -36 | |
| Aug 30, 2026Arrived | Hong Kong | San Francisco | 4 | |
| Aug 29, 2026Arrived | Hong Kong | San Francisco | -18 | |
| Aug 28, 2026Arrived | Hong Kong | San Francisco | -16 | |
| Aug 27, 2026Cancelled | Hong Kong | San Francisco | Not available | Not available |
| Aug 26, 2026Arrived | Hong Kong | San Francisco | -2 | |
| Aug 25, 2026Arrived | Hong Kong | San Francisco | -14 | |
| Aug 23, 2026Arrived | Hong Kong | San Francisco | -15 | |
| Aug 22, 2026Arrived | Hong Kong | San Francisco | -18 | |
| Aug 20, 2026Arrived | Hong Kong | San Francisco | -11 |