United Airlines
Is UA2309 delayed?
UA2309 is cancelled on Nov 14.
Usually on time: arrived within 15 min of schedule on 32 of the last 35 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This update may be out of date.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
Denver
DEN
Scheduled
Nov 14
Arrival
San Diego
SAN
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
No live update yet
Showing the published schedule until live times come in.
Update time unavailable
Departure
San Diego
SAN
Scheduled
Nov 14
Arrival
San Francisco
SFO
Scheduled
Nov 14
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
Also sold as AC4450, NZ9598, AZ4481, LH9223, EK6345, VA8434, VA8436
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 473 min late
San Diego → San Francisco
- 21 min early
Denver → San Diego
- 18 min early
San Diego → San Francisco
- 22 min early
Denver → San Diego
- 33 min early
Denver → San Diego
Is UA2309 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
- 31 of 77
- Cancelled today
- 54
San Diego (SAN) departures
- Left more than 15 min late
- 5 of 24
- Cancelled today
- 18
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Nov 14, 2026Cancelled | Denver | San Diego | Not available | Not available |
| Nov 13, 2026Arrived | San Diego | San Francisco | 473 | |
| Nov 13, 2026Arrived | Denver | San Diego | -21 | |
| Nov 12, 2026Arrived | San Diego | San Francisco | -18 | |
| Nov 12, 2026Arrived | Denver | San Diego | -22 | |
| Nov 11, 2026Arrived | Denver | San Diego | -33 | |
| Nov 10, 2026Arrived | Denver | San Diego | -10 | |
| Nov 9, 2026Arrived | San Diego | San Francisco | 128 | |
| Nov 9, 2026Arrived | Denver | San Diego | -12 | |
| Nov 8, 2026Arrived | San Diego | San Francisco | 21 | |
| Nov 8, 2026Arrived | Denver | San Diego | -27 | |
| Nov 7, 2026Arrived | San Diego | San Francisco | -27 | |
| Nov 7, 2026Arrived | Denver | San Diego | -35 | |
| Nov 6, 2026Arrived | San Diego | San Francisco | -8 | |
| Nov 6, 2026Arrived | Denver | San Diego | -28 | |
| Nov 5, 2026Arrived | San Diego | San Francisco | -16 | |
| Nov 5, 2026Arrived | Denver | San Diego | -8 | |
| Nov 4, 2026Arrived | Denver | San Diego | -16 | |
| Nov 3, 2026Arrived | Denver | San Diego | -14 | |
| Nov 2, 2026Arrived | Denver | San Diego | -15 | |
| Nov 1, 2026Arrived | Denver | San Diego | -6 | |
| Oct 31, 2026Arrived | Denver | San Diego | -4 | |
| Oct 30, 2026Arrived | Denver | San Diego | -6 | |
| Oct 29, 2026Arrived | Denver | San Diego | -7 | |
| Oct 27, 2026Arrived | Denver | San Diego | -15 | |
| Oct 26, 2026Arrived | Denver | San Diego | -15 | |
| Oct 25, 2026Arrived | Denver | San Diego | -21 | |
| Oct 24, 2026Arrived | Denver | San Diego | -14 | |
| Oct 23, 2026Arrived | Denver | San Diego | -4 | |
| Oct 22, 2026Arrived | Denver | San Diego | -8 | |
| Oct 21, 2026Arrived | Denver | San Diego | 10 | |
| Oct 20, 2026Arrived | Denver | San Diego | -14 | |
| Oct 19, 2026Arrived | Denver | San Diego | -9 | |
| Oct 18, 2026Arrived | Denver | San Diego | 0 | |
| Oct 17, 2026Arrived | Denver | San Diego | -5 | |
| Oct 16, 2026Arrived | Denver | San Diego | -20 |