United Airlines
Is UA451 delayed?
UA451 is cancelled on Nov 13.
Usually on time: arrived within 15 min of schedule on 15 of the last 18 flights.
Cancelled
This update may be out of date. Check with your airline.
Update time unavailable
Departure
San Francisco
SFO
Scheduled
Nov 13
Arrival
Phoenix
PHX
Scheduled
Nov 13
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
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 12 min early
San Francisco → Phoenix
- 19 min early
New Orleans → San Francisco
- 110 min late
Houston → Boston
- 23 min late
San Francisco → Phoenix
- 5 min early
San Francisco → Phoenix
Is UA451 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
San Francisco (SFO) departures
- Left more than 15 min late
- 25 of 46
- Cancelled today
- 41
Phoenix (PHX) departures
- Left more than 15 min late
- 16 of 42
- Cancelled today
- 35
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Nov 13, 2026Cancelled | San Francisco | Phoenix | Not available | Not available |
| Nov 12, 2026Arrived | San Francisco | Phoenix | -12 | |
| Nov 11, 2026Arrived | New Orleans | San Francisco | -19 | |
| Nov 10, 2026Arrived | Houston | Boston | 110 | |
| Nov 9, 2026Arrived | San Francisco | Phoenix | 23 | |
| Nov 8, 2026Arrived | San Francisco | Phoenix | -5 | |
| Nov 7, 2026Arrived | San Francisco | Phoenix | -17 | |
| Nov 6, 2026Arrived | San Francisco | Phoenix | -7 | |
| Nov 5, 2026Arrived | San Francisco | Phoenix | -8 | |
| Nov 4, 2026Arrived | New Orleans | San Francisco | -11 | |
| Nov 3, 2026Arrived | Houston | Boston | 1 | |
| Oct 24, 2026Arrived | Chicago | Columbus | -7 | |
| Oct 23, 2026Arrived | Chicago | Columbus | -15 | |
| Oct 22, 2026Arrived | Chicago | Columbus | 11 | |
| Oct 21, 2026Arrived | Chicago | Columbus | -17 | |
| Oct 20, 2026Arrived | Chicago | Columbus | 26 | |
| Oct 19, 2026Arrived | Chicago | Columbus | -5 | |
| Oct 18, 2026Arrived | Chicago | Columbus | -30 | |
| Oct 17, 2026Arrived | Chicago | Columbus | -4 |