United Airlines
Is UA8128 delayed?
Each route and date is shown separately. Confirm that both airports match your booking.
Service date: · Actual departure date; scheduled departure unavailable (America/Los_Angeles)
16 min late
Official source · Updated
Departure
San Francisco
SFO
Actual
Sep 10
Arrival
Toronto
YYZ
Actual
Sep 10
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Not available
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Actual
Operating flight: ACA742
Service date: · Scheduled departure date (America/Los_Angeles)
14 min early
Official source · Updated
Departure
Seattle
SEA
Actual
Sep 10
Arrival
Houston
IAH
Actual
Sep 10
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 4 min early
SFO → YYZ
- 23 min early
SFO → YYZ
- 25 min early
SFO → YYZ
- 20 min early
SFO → YYZ
- 1 min late
SFO → YYZ
Flight history and details
Aug 23, 2026 — Sep 22, 2026
- Observed arrivals
- 20
- Arrivals over 15 minutes late
- 2
- Observed cancellations
- 1
- Observed occurrences
- 21
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 21, 2026Arrived | San Francisco | Toronto | -4 | |
| Sep 20, 2026Arrived | San Francisco | Toronto | -23 | |
| Sep 19, 2026Arrived | San Francisco | Toronto | -25 | |
| Sep 18, 2026Arrived | San Francisco | Toronto | -20 | |
| Sep 17, 2026Arrived | San Francisco | Toronto | 1 | |
| Sep 17, 2026Arrived | Chicago | Houston | 170 | |
| Sep 16, 2026Arrived | San Francisco | Toronto | 7 | |
| Sep 15, 2026Cancelled | San Francisco | Toronto | Not available | Not available |
| Sep 14, 2026Arrived | San Francisco | Toronto | -11 | |
| Sep 13, 2026Arrived | San Francisco | Toronto | -10 | |
| Sep 12, 2026Arrived | San Francisco | Toronto | -18 | |
| Sep 11, 2026Arrived | San Francisco | Toronto | -8 | |
| Sep 10, 2026Arrived | San Francisco | Toronto | 16 | |
| Sep 10, 2026Arrived | Seattle | Houston | -14 | |
| Sep 9, 2026Arrived | San Francisco | Toronto | -16 | |
| Sep 8, 2026Arrived | San Francisco | Toronto | -21 | |
| Sep 7, 2026Arrived | San Francisco | Toronto | 5 | |
| Sep 6, 2026Arrived | San Francisco | Toronto | -3 | |
| Sep 5, 2026Arrived | San Francisco | Toronto | -21 | |
| Sep 4, 2026Arrived | San Francisco | Toronto | 4 | |
| Sep 3, 2026Arrived | San Francisco | Toronto | -20 |