United Airlines
Is UA1256 delayed?
UA1256 is cancelled on Nov 14.
Usually on time: arrived within 15 min of schedule on 47 of the last 53 flights.
Each route and date is shown separately. Confirm that both airports match your booking.
Cancelled
This update may be out of date. Check with your airline.
Update time unavailable
Departure
Knoxville
TYS
Scheduled
Nov 14
Arrival
Denver
DEN
Scheduled
Nov 14
Times shown in airport local time
Service date: · Scheduled departure date (America/New_York)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
No live update yet
Showing the published schedule until live times come in.
Update time unavailable
Departure
Denver
DEN
Scheduled
Nov 14
Arrival
San Jose
SJC
Scheduled
Nov 14
Times shown in airport local time
Service date: · Scheduled departure date (America/Denver)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- 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.
- 19 min early
Knoxville → Denver
- 11 min early
Denver → San Jose
- 11 min early
Denver → San Jose
- 25 min early
Knoxville → Denver
- 11 min early
Denver → San Jose
Is UA1256 usually late?
Period: Oct 15, 2026 – Nov 14, 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. Compares scheduled and actual arrival times. Cancelled and diverted flights are left out. Some flights may be missing.
At the airports today
Denver (DEN) departures
- Left more than 15 min late
- 29 of 66
- Cancelled today
- 49
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Nov 14, 2026Cancelled | Knoxville | Denver | Not available | Not available |
| Nov 13, 2026Cancelled | Denver | San Jose | Not available | Not available |
| Nov 13, 2026Arrived | Knoxville | Denver | -19 | |
| Nov 12, 2026Arrived | Denver | San Jose | -11 | |
| Nov 11, 2026Arrived | Denver | San Jose | -11 | |
| Nov 11, 2026Arrived | Knoxville | Denver | -25 | |
| Nov 10, 2026Arrived | Denver | San Jose | -11 | |
| Nov 10, 2026Arrived | Knoxville | Denver | -22 | |
| Nov 9, 2026Arrived | Denver | San Jose | -14 | |
| Nov 9, 2026Arrived | Knoxville | Denver | -28 | |
| Nov 8, 2026Arrived | Denver | San Jose | -21 | |
| Nov 7, 2026Arrived | Denver | San Jose | -18 | |
| Nov 7, 2026Arrived | Knoxville | Denver | -14 | |
| Nov 6, 2026Arrived | Denver | San Jose | -23 | |
| Nov 6, 2026Arrived | Knoxville | Denver | -31 | |
| Nov 5, 2026Arrived | Denver | San Jose | -11 | |
| Nov 4, 2026Arrived | Denver | San Jose | 21 | |
| Nov 4, 2026Arrived | Knoxville | Denver | -22 | |
| Nov 3, 2026Arrived | Denver | San Jose | 7 | |
| Nov 3, 2026Arrived | Knoxville | Denver | -37 | |
| Nov 2, 2026Arrived | Denver | San Jose | -16 | |
| Nov 2, 2026Arrived | Knoxville | Denver | -19 | |
| Nov 1, 2026Arrived | Denver | San Jose | -11 | |
| Nov 1, 2026Arrived | Knoxville | Denver | -24 | |
| Oct 31, 2026Arrived | Denver | San Jose | -11 | |
| Oct 31, 2026Arrived | Knoxville | Denver | -1 | |
| Oct 30, 2026Arrived | Denver | San Jose | 5 | |
| Oct 30, 2026Arrived | Knoxville | Denver | -24 | |
| Oct 29, 2026Arrived | Knoxville | Denver | -26 | |
| Oct 28, 2026Arrived | Denver | San Jose | 27 | |
| Oct 27, 2026Arrived | Denver | San Jose | 17 | |
| Oct 27, 2026Arrived | Knoxville | Denver | -34 | |
| Oct 26, 2026Arrived | Denver | San Jose | 15 | |
| Oct 26, 2026Arrived | Knoxville | Denver | -31 | |
| Oct 25, 2026Arrived | Denver | San Jose | -20 | |
| Oct 25, 2026Arrived | Knoxville | Denver | -44 | |
| Oct 24, 2026Arrived | Denver | San Jose | 18 | |
| Oct 24, 2026Arrived | Knoxville | Denver | -25 | |
| Oct 23, 2026Arrived | Denver | San Jose | -13 | |
| Oct 23, 2026Arrived | Knoxville | Denver | 7 | |
| Oct 22, 2026Arrived | Denver | San Jose | -16 | |
| Oct 22, 2026Arrived | Knoxville | Denver | -21 | |
| Oct 21, 2026Arrived | Denver | San Jose | -16 | |
| Oct 21, 2026Arrived | Knoxville | Denver | 21 | |
| Oct 20, 2026Arrived | Denver | San Jose | -20 | |
| Oct 20, 2026Arrived | Knoxville | Denver | -28 | |
| Oct 19, 2026Arrived | Denver | San Jose | -19 | |
| Oct 19, 2026Arrived | Knoxville | Denver | -26 | |
| Oct 18, 2026Arrived | Denver | San Jose | -15 | |
| Oct 18, 2026Arrived | Knoxville | Denver | -26 | |
| Oct 17, 2026Arrived | Denver | San Jose | 2 | |
| Oct 17, 2026Arrived | Knoxville | Denver | -35 | |
| Oct 16, 2026Arrived | Denver | San Jose | -26 | |
| Oct 16, 2026Arrived | Knoxville | Denver | -9 | |
| Oct 15, 2026Arrived | Denver | San Jose | 17 |