(UA) United Airlines 2121 Flight Details
On time | Scheduled
Departure
SEA
Seattle-Tacoma International Airport, WA, US
Flight Gate Times
02-May-2026
Scheduled
08:38
PDT
Estimated
08:38
PDT
Total Departure Delay: -
Flight Runway Times
02-May-2026
Scheduled
09:01
PDT
Actual
--
Runway Delay: -
Terminal
-
Gate
B11
Craft Type
Airbus A320
320
Flight Time
Scheduled
2h 19m
Arrival
SFO
San Francisco International Airport, CA, US
Flight Gate Times
02-May-2026
Scheduled
10:57
PDT
Estimated
10:57
PDT
Total Arrival Delay: -
Flight Runway Times
02-May-2026
Scheduled
10:48
PDT
Actual
--
Runway Delay: -
Terminal
2
Gate
D16
Baggage Claim
1
Tail Number
N453UA
Flight Time
Estimated
2h 19m
Flight Notes
Also marketed as (AZ) ITA Airways 4483, (CA) Air China 7306, (NH) ANA 7305, (NZ) Air New Zealand 9427, (VA) Virgin Australia 8291
Event Timeline
Date
Event
Data Updated
2 May
06:01
23:01
23:01
Gate Adjustment
Arrival Gate changed from D10 to D16
Baggage changed from 6 to 1
2 May
02:41
19:41
19:41
Gate Adjustment
Arrival Gate changed from D16 to D10
2 May
01:17
18:17
18:17
Gate Adjustment
Departure Gate changed from B11 to B9
2 May
01:17
18:17
18:17
Gate Adjustment
Departure Gate changed from B9 to B11
1 May
16:17
09:17
09:17
Gate Adjustment
Arrival Gate changed from F14 to D16
Arrival Terminal changed from 3 to 2
1 May
15:46
08:46
08:46
Time Adjustment
Scheduled Runway Departure changed to May-02-2026 9:01 AM
Scheduled Runway Arrival changed to May-02-2026 10:48 AM
1 May
13:17
06:17
06:17
Gate Adjustment
Arrival Gate changed to F14
Baggage changed to 6
1 May
12:05
05:05
05:05
Gate Adjustment
Departure Gate changed from B15 to B11
30 Apr
02:41
19:41
19:41
Equipment Adjustment
Tail Number changed from N451UA to N453UA
30 Apr
02:24
19:24
19:24
Equipment Adjustment
Tail Number changed from N430UA to N451UA
29 Apr
23:59
16:59
16:59
Time Adjustment
Estimated Gate Departure changed to May-02-2026 8:38 AM
Estimated Gate Arrival changed to May-02-2026 10:57 AM
Departure Gate changed to B15
Tail Number changed to N430UA
Actual Equipment changed to 320
29 Apr
18:44
11:44
11:44
Record Created
29 Apr
18:44
11:44
11:44
Time Adjustment
Scheduled Gate Departure changed to May-02-2026 8:38 AM
Scheduled Gate Arrival changed to May-02-2026 10:57 AM
Arrival Terminal changed to 3
Scheduled Equipment changed to 320