Is UA28 delayed?
Each route and date is shown separately. Confirm that both airports match your booking.
Service date: · Scheduled departure date (Asia/Singapore)
11 min late
Official source · Updated
Departure
Singapore
SIN
Actual
Aug 28
Arrival
San Francisco
SFO
Actual
Aug 28
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Actual
Service date: · Scheduled departure date (Asia/Singapore)
On time
This update may be out of date. Check with your airline.
Update time unavailable
Departure
Singapore
SIN
Actual
Aug 28
Arrival
San Francisco
SFO
Scheduled
Not available
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Not available
- 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.
- 2 min early
SIN → SFO
- 10 min early
SIN → SFO
- 28 min late
SIN → SFO
- 22 min late
SIN → SFO
- 17 min late
SIN → SFO
Flight history and details
Aug 18, 2026 — Sep 17, 2026
- Observed arrivals
- 28
- Arrivals over 15 minutes late
- 10
- Observed cancellations
- 0
- Observed occurrences
- 32
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 16, 2026Arrived | Singapore | San Francisco | -2 | |
| Sep 15, 2026Arrived | Singapore | San Francisco | -10 | |
| Sep 14, 2026Arrived | Singapore | San Francisco | 28 | |
| Sep 13, 2026Arrived | Singapore | San Francisco | 22 | |
| Sep 12, 2026Arrived | Singapore | San Francisco | 17 | |
| Sep 11, 2026Arrived | Singapore | San Francisco | 26 | |
| Sep 10, 2026Arrived | Singapore | San Francisco | -8 | |
| Sep 9, 2026Arrived | Singapore | San Francisco | 9 | |
| Sep 8, 2026Arrived | Singapore | San Francisco | 4 | |
| Sep 7, 2026Arrived | Singapore | San Francisco | 31 | |
| Sep 6, 2026Arrived | Singapore | San Francisco | 19 | |
| Sep 5, 2026Arrived | Singapore | San Francisco | 7 | |
| Sep 4, 2026Arrived | Singapore | San Francisco | 14 | |
| Sep 3, 2026Arrived | Singapore | San Francisco | -14 | |
| Sep 2, 2026Arrived | Singapore | San Francisco | -26 | |
| Sep 2, 2026Arrived | Singapore | San Francisco | -31 | |
| Sep 1, 2026Arrived | Singapore | San Francisco | -31 | |
| Aug 31, 2026Arrived | Singapore | San Francisco | -10 | |
| Aug 30, 2026Arrived | Singapore | San Francisco | 2 | |
| Aug 29, 2026Arrived | Singapore | San Francisco | -6 | |
| Aug 28, 2026Arrived | Singapore | San Francisco | 11 | |
| Aug 27, 2026Arrived | Singapore | San Francisco | 1 | |
| Aug 26, 2026Arrived | Singapore | San Francisco | 21 | |
| Aug 25, 2026Arrived | Singapore | San Francisco | 75 | |
| Aug 23, 2026Arrived | Singapore | San Francisco | -730 | |
| Aug 22, 2026Arrived | Singapore | San Francisco | -8 | |
| Aug 21, 2026Arrived | Singapore | San Francisco | 22 | |
| Aug 19, 2026Arrived | Singapore | San Francisco | 39 |