Air Canada
Is AC4283 delayed?
No — AC4283 landed in San Francisco on schedule (6 min behind), at 16:39 on Sep 27 (as of Sep 28, 00:16 UTC). Over its last 12 recorded arrivals, 1 landed more than 15 min late.
On schedule (6 min behind)
Official source · Updated
Departure
Monterey
MRY
Scheduled
Not available
Arrival
San Francisco
SFO
Actual
Scheduled 16:33
Sep 27
Times shown in airport local time
Service date: · Scheduled arrival date; departure time unavailable (America/Los_Angeles)
Flight details
Departure · UTC
- Scheduled
- Not available
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Actual
Operating flight: UAL4758
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- On schedule (6 min behind)
Monterey → San Francisco
- 4 min early
Monterey → San Francisco
- 99 min late
Monterey → San Francisco
- 9 min early
Monterey → San Francisco
- 11 min early
Monterey → San Francisco
Flight history and details
Aug 29, 2026 — Sep 28, 2026
- Observed arrivals
- 12
- Arrivals over 15 minutes late
- 1
- Observed cancellations
- 0
- Observed occurrences
- 12
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 27, 2026Arrived | Monterey | San Francisco | 6 | |
| Sep 26, 2026Arrived | Monterey | San Francisco | -4 | |
| Sep 25, 2026Arrived | Monterey | San Francisco | 99 | |
| Sep 24, 2026Arrived | Monterey | San Francisco | -9 | |
| Sep 22, 2026Arrived | Monterey | San Francisco | -11 | |
| Sep 19, 2026Arrived | Monterey | San Francisco | -3 | |
| Sep 17, 2026Arrived | Monterey | San Francisco | 4 | |
| Sep 15, 2026Arrived | Monterey | San Francisco | -16 | |
| Sep 12, 2026Arrived | Monterey | San Francisco | -26 | |
| Sep 10, 2026Arrived | Monterey | San Francisco | 8 | |
| Sep 8, 2026Arrived | Monterey | San Francisco | -35 | |
| Sep 5, 2026Arrived | Monterey | San Francisco | -20 |