Is UA1257 delayed?
No delay reported — UA1257 is expected in San Francisco at 10:49 on Sep 30, 15 min early (last reported Sep 30, 13:02 UTC).
Often late: arrived more than 15 min after schedule on 21 of the last 41 flights.
Each route and date is shown separately. Confirm that both airports match your booking.
15 min early
This update may be out of date. Check with your airline.
Official source · Updated
Departure
Miami
MIA
Actual
Sep 30
Arrival
San Francisco
SFO
Estimated
Scheduled 11:04
Sep 30
Times shown in airport local time
Service date: · Actual departure date; scheduled departure unavailable (America/New_York)
In the air. The market on this flight settles on the airport’s recorded arrival.
Think UA1257 runs late today? Delayed is trading at 49¢ — pays out x2.05.
Will United Airlines UAL 1257 from San Francisco to San Diego arrive on time, be delayed, or be cancelled on Sep 30?Flight details
Departure · UTC
- Scheduled
- Not available
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Actual
- Not available
Market prices express trading expectations about a contract’s stated threshold. They do not confirm airline status. The linked market shows its terms and activity.
No live update yet
Showing the published schedule until live times are reported.
Update time unavailable
Departure
San Francisco
SFO
Scheduled
Sep 30
Arrival
San Diego
SAN
Scheduled
Sep 30
Times shown in airport local time
Service date: · Scheduled departure date (America/Los_Angeles)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Market prices express trading expectations about a contract’s stated threshold. They do not confirm airline status. The linked market shows its terms and activity.
Also sold as OZ6344, AC3338, AC3340, NH7313, NZ2924, NZ9354, NZ9700, AZ4431, AZ4474, CA7297, CM2874, LH8559, LH9235, TK9588, EK6315, VA8395, VA8463
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 20 min early
San Francisco → San Diego
- 19 min early
Miami → San Francisco
- 62 min late
Miami → San Francisco
- 26 min late
San Francisco → San Diego
- 20 min early
Miami → San Francisco
Is UA1257 usually late?
Observation window: Aug 31, 2026 – Sep 30, 2026
On time means arriving no more than 15 minutes after the scheduled time; late means more than 15 minutes after. Cancelled and diverted flights are counted apart from arrivals. Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.
At the airports today
Miami (MIA) departures
- Left more than 15 min late
- 1 of 36
- Cancelled today
- 0
San Francisco (SFO) departures
- Left more than 15 min late
- 5 of 31
- Cancelled today
- 0
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 29, 2026Arrived | San Francisco | San Diego | -20 | |
| Sep 29, 2026Arrived | Miami | San Francisco | -19 | |
| Sep 28, 2026Arrived | Miami | San Francisco | 62 | |
| Sep 27, 2026Arrived | San Francisco | San Diego | 26 | |
| Sep 27, 2026Arrived | Miami | San Francisco | -20 | |
| Sep 26, 2026Arrived | San Francisco | San Diego | 2 | |
| Sep 26, 2026Arrived | Miami | San Francisco | -12 | |
| Sep 25, 2026Arrived | San Francisco | San Diego | 3 | |
| Sep 25, 2026Arrived | Miami | San Francisco | -24 | |
| Sep 24, 2026Arrived | San Francisco | San Diego | 67 | |
| Sep 24, 2026Arrived | Miami | San Francisco | -32 | |
| Sep 23, 2026Arrived | San Francisco | San Diego | 67 | |
| Sep 22, 2026Arrived | San Francisco | San Diego | 71 | |
| Sep 22, 2026Arrived | Portland | San Francisco | -17 | |
| Sep 21, 2026Arrived | Portland | San Francisco | 39 | |
| Sep 20, 2026Arrived | Portland | San Francisco | 47 | |
| Sep 19, 2026Arrived | San Francisco | San Diego | 69 | |
| Sep 19, 2026Arrived | Portland | San Francisco | 38 | |
| Sep 18, 2026Arrived | Portland | San Francisco | 51 | |
| Sep 17, 2026Arrived | Portland | San Francisco | 158 | |
| Sep 16, 2026Arrived | Portland | San Francisco | 52 | |
| Sep 15, 2026Arrived | San Francisco | San Diego | -5 | |
| Sep 15, 2026Arrived | Portland | San Francisco | 0 | |
| Sep 14, 2026Arrived | San Francisco | San Diego | 11 | |
| Sep 14, 2026Arrived | Portland | San Francisco | 17 | |
| Sep 13, 2026Arrived | San Francisco | San Diego | -14 | |
| Sep 13, 2026Arrived | Portland | San Francisco | -14 | |
| Sep 12, 2026Arrived | Portland | San Francisco | 13 | |
| Sep 11, 2026Arrived | Portland | San Francisco | 123 | |
| Sep 10, 2026Arrived | San Francisco | San Diego | 53 | |
| Sep 10, 2026Arrived | Portland | San Francisco | 8 | |
| Sep 9, 2026Arrived | San Francisco | San Diego | -6 | |
| Sep 9, 2026Arrived | Portland | San Francisco | 20 | |
| Sep 8, 2026Arrived | San Francisco | San Diego | -10 | |
| Sep 8, 2026Arrived | Portland | San Francisco | 31 | |
| Sep 7, 2026Arrived | St Louis | San Francisco | 31 | |
| Sep 6, 2026Arrived | San Francisco | San Diego | -11 | |
| Sep 6, 2026Arrived | St Louis | San Francisco | 21 | |
| Sep 5, 2026Arrived | San Francisco | San Diego | 351 | |
| Sep 4, 2026Arrived | San Francisco | San Diego | 68 | |
| Sep 4, 2026Arrived | St Louis | San Francisco | -3 |
Email me if UA1257 runs late
We email you if your next UA1257 flight in the coming day is more than 15 minutes late, cancelled or diverted. Alerts last 30 days. No account needed.