| EXPECTED TO ARRIVE IN 41 MINUTES |
 |  |
Departure (UA2121 Flight Schedule)
San Francisco, United StatesPDT 00:00:00 DAY
Arrival (UA2121 Flight Schedule)
MDT 00:00:00 DAY
Flight Radar Checker UA 2121
Live Flight Tracker Map
Flight UA2121 from San Francisco to Denver is operated by United Airlines. Scheduled time of departure from San Francisco Intl is 12:45 PDT and scheduled time of arrival in Denver Intl is 16:29 MDT. The duration of the flight is 2 hours 44 minutes.
4.3 out of 5 stars / 12 votes
Flight Finder
from Denver to San Francisco
| Flight | Departure | Arrival |
|---|---|---|
| F93439 00:27 |
Denver Intl (DEN) |
San Francisco Intl (SFO) |
| UA2367 07:10 |
Denver Intl (DEN) |
San Francisco Intl (SFO) |
| F91093 09:13 |
Denver Intl (DEN) |
San Francisco Intl (SFO) |
| UA2391 09:35 |
Denver Intl (DEN) |
San Francisco Intl (SFO) |
| WN845 10:30 |
Denver Intl (DEN) |
San Francisco Intl (SFO) |
| UA1506 11:25 |
Denver Intl (DEN) |
San Francisco Intl (SFO) |
| UA1561 13:15 |
Denver Intl (DEN) |
San Francisco Intl (SFO) |
| UA3911 13:19 |
Denver Intl (DEN) |
San Francisco Intl (SFO) |
| WN2589 15:25 |
Denver Intl (DEN) |
San Francisco Intl (SFO) |
| UA1812 15:31 |
Denver Intl (DEN) |
San Francisco Intl (SFO) |
| WN700 17:30 |
Denver Intl (DEN) |
San Francisco Intl (SFO) |
| UA2633 17:41 |
Denver Intl (DEN) |
San Francisco Intl (SFO) |
| UA2070 18:46 |
Denver Intl (DEN) |
San Francisco Intl (SFO) |
| UA1007 19:52 |
Denver Intl (DEN) |
San Francisco Intl (SFO) |
| WN2071 20:00 |
Denver Intl (DEN) |
San Francisco Intl (SFO) |
| UA3909 20:41 |
Denver Intl (DEN) |
San Francisco Intl (SFO) |
| UA1389 21:09 |
Denver Intl (DEN) |
San Francisco Intl (SFO) |
| UA2123 22:42 |
Denver Intl (DEN) |
San Francisco Intl (SFO) |
| WN1667 23:05 |
Denver Intl (DEN) |
San Francisco Intl (SFO) |
| F91229 23:25 |
Denver Intl (DEN) |
San Francisco Intl (SFO) |
History Flight Information for UA2121 from Flight Scanner System
| Date | Flight | Departure Airport | Arrival Airport | Scheduled | Plane | Estimated | ||
|---|---|---|---|---|---|---|---|---|
| Departure | Arrival | Departure | Arrival | |||||
| Sun, 17 May | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:38 PDT | 10:57 PDT | |||
| Sat, 16 May | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 18:00 MDT | 22:42 EDT | |||
| Sat, 16 May | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | 13:38 PDT | 15:45 MDT | |
| Sat, 16 May | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:38 PDT | 10:57 PDT | N447UA (Airbus A320) | 08:55 PDT | 11:21 PDT |
| Fri, 15 May | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 18:00 MDT | 22:42 EDT | |||
| Fri, 15 May | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | |||
| Fri, 15 May | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:38 PDT | 10:57 PDT | |||
| Thu, 14 May | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 18:00 MDT | 22:42 EDT | N68452 (Boeing B739) | 19:16 MDT | 22:35 EDT |
| Thu, 14 May | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | |||
| Thu, 14 May | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:38 PDT | 10:57 PDT | N487UA (Airbus A320) | 10:38 PDT | 12:35 PDT |
| Wed, 13 May | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 18:00 MDT | 22:42 EDT | 18:06 MDT | 23:48 EDT | |
| Wed, 13 May | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | |||
| Wed, 13 May | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:38 PDT | 10:57 PDT | N462UA (Airbus A320) | 10:51 PDT | 12:59 PDT |
| Tue, 12 May | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 18:00 MDT | 22:42 EDT | 18:03 MDT | 23:51 EDT | |
| Tue, 12 May | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | N488UA (Airbus A320) | 13:01 PDT | 15:09 MDT |
| Tue, 12 May | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:38 PDT | 10:57 PDT | N488UA (Airbus A320) | 10:21 PDT | 12:09 PDT |
| Mon, 11 May | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 18:00 MDT | 22:42 EDT | 17:57 MDT | 22:20 EDT | |
| Mon, 11 May | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | 12:54 PDT | 16:34 MDT | |
| Mon, 11 May | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:38 PDT | 10:57 PDT | N475UA (Airbus A320) | 09:42 PDT | 11:21 PDT |
| Sun, 10 May | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 18:00 MDT | 22:42 EDT | 18:09 MDT | 23:55 EDT | |
| Sun, 10 May | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | 12:52 PDT | 16:20 MDT | |
| Sun, 10 May | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:38 PDT | 10:57 PDT | N453UA (Airbus A320) | 09:29 PDT | 11:34 PDT |
| Sat, 09 May | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 18:05 MDT | 22:47 EDT | N76265 (Boeing B738) | 18:04 MDT | 22:36 EDT |
| Sat, 09 May | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | 13:02 PDT | 16:07 MDT | |
| Sat, 09 May | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:38 PDT | 10:57 PDT | N492UA (Airbus A320) | 08:40 PDT | 10:31 PDT |
| Fri, 08 May | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 18:00 MDT | 22:42 EDT | N69840 (Boeing B739) | 18:01 MDT | 22:19 EDT |
| Fri, 08 May | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | |||
| Fri, 08 May | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:38 PDT | 10:57 PDT | N469UA (Airbus A320) | 09:57 PDT | 12:10 PDT |
| Thu, 07 May | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 18:00 MDT | 22:42 EDT | N37465 (Boeing B739) | 18:09 MDT | 23:22 EDT |
| Thu, 07 May | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | |||
| Thu, 07 May | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:38 PDT | 10:57 PDT | |||
| Wed, 06 May | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 18:00 MDT | 22:42 EDT | N38446 (Boeing B739) | 18:05 MDT | 22:18 EDT |
| Wed, 06 May | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | 13:20 PDT | 17:07 MDT | |
| Wed, 06 May | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:38 PDT | 10:57 PDT | N437UA (Airbus A320) | 09:58 PDT | 12:21 PDT |
| Tue, 05 May | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 18:00 MDT | 22:42 EDT | N77431 (Boeing B739) | 18:40 MDT | 23:10 EDT |
| Tue, 05 May | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | N453UA (Airbus A320) | 13:18 PDT | 15:06 MDT |
| Tue, 05 May | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:38 PDT | 10:57 PDT | N453UA (Airbus A320) | 10:31 PDT | 12:13 PDT |
| Mon, 04 May | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 18:00 MDT | 22:42 EDT | N75428 (Boeing B739) | 18:11 MDT | 22:36 EDT |
| Mon, 04 May | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | |||
| Mon, 04 May | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:38 PDT | 10:57 PDT | N462UA (Airbus A320) | 10:09 PDT | 12:09 PDT |
| Sun, 03 May | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 18:00 MDT | 22:42 EDT | 18:58 MDT | 21:33 EDT | |
| Sun, 03 May | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | 12:47 PDT | 16:31 MDT | |
| Sun, 03 May | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:38 PDT | 10:57 PDT | N496UA (Airbus A320) | 08:47 PDT | 11:00 PDT |
| Sat, 02 May | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 18:05 MDT | 22:47 EDT | N78511 (Boeing B738) | 18:17 MDT | 22:36 EDT |
| Sat, 02 May | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | 12:51 PDT | 16:13 MDT | |
| Sat, 02 May | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:38 PDT | 10:57 PDT | N453UA (Airbus A320) | 09:12 PDT | 10:57 PDT |
| Fri, 01 May | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 18:00 MDT | 22:42 EDT | N39415 (Boeing B739) | 17:58 MDT | 22:21 EDT |
| Fri, 01 May | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | |||
| Fri, 01 May | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:38 PDT | 10:57 PDT | N466UA (Airbus A320) | 10:21 PDT | 12:08 PDT |
| Thu, 30 Apr | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 18:00 MDT | 22:42 EDT | 18:03 MDT | 20:09 EDT | |
| Thu, 30 Apr | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | N430UA (Airbus A320) | 13:32 PDT | 14:32 MDT |
| Thu, 30 Apr | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:44 PDT | 11:03 PDT | N430UA (Airbus A320) | 10:53 PDT | 12:28 PDT |
| Wed, 29 Apr | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 17:35 MDT | 22:12 EDT | 17:41 MDT | 22:44 EDT | |
| Wed, 29 Apr | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | 12:48 PDT | 16:14 MDT | |
| Wed, 29 Apr | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:42 PDT | 11:01 PDT | N483UA (Airbus A320) | 09:51 PDT | 11:22 PDT |
| Tue, 28 Apr | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 17:35 MDT | 22:12 EDT | N26232 (Boeing B738) | 17:35 MDT | 23:48 EDT |
| Tue, 28 Apr | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | |||
| Tue, 28 Apr | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:42 PDT | 11:01 PDT | N431UA (Airbus A320) | 08:58 PDT | 11:22 PDT |
| Mon, 27 Apr | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 17:35 MDT | 22:12 EDT | N66893 (Boeing B739) | 17:28 MDT | 22:24 EDT |
| Mon, 27 Apr | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | N1902U ( A320) | 13:18 PDT | 18:47 MDT |
| Mon, 27 Apr | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:42 PDT | 11:01 PDT | N1902U ( A320) | 09:36 PDT | 11:32 PDT |
| Sun, 26 Apr | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 17:35 MDT | 22:12 EDT | 17:59 MDT | 23:51 EDT | |
| Sun, 26 Apr | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | N38454 (Boeing B739) | 12:48 PDT | 16:18 MDT |
| Sun, 26 Apr | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:42 PDT | 11:01 PDT | N451UA (Airbus A320) | 08:54 PDT | 10:54 PDT |
| Sat, 25 Apr | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 17:35 MDT | 22:12 EDT | N68801 (Boeing B739) | 18:05 MDT | 22:21 EDT |
| Sat, 25 Apr | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | N68453 (Boeing B739) | 12:49 PDT | 16:07 MDT |
| Sat, 25 Apr | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:42 PDT | 11:01 PDT | N477UA (Airbus A320) | 09:44 PDT | 11:29 PDT |
| Fri, 24 Apr | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 17:35 MDT | 22:12 EDT | N37277 (Boeing B738) | 18:08 MDT | 22:22 EDT |
| Fri, 24 Apr | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | N38454 (Boeing B739) | 13:06 PDT | 16:12 MDT |
| Fri, 24 Apr | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:42 PDT | 11:01 PDT | N482UA (Airbus A320) | 09:51 PDT | 11:31 PDT |
| Thu, 23 Apr | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 17:35 MDT | 22:12 EDT | 17:34 MDT | 22:45 EDT | |
| Thu, 23 Apr | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | 13:45 PDT | 17:05 MDT | |
| Thu, 23 Apr | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:42 PDT | 11:01 PDT | 09:25 PDT | 11:15 PDT | |
| Wed, 22 Apr | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 17:35 MDT | 22:12 EDT | N61886 (Boeing B739) | 17:33 MDT | 21:54 EDT |
| Wed, 22 Apr | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | N27421 (Boeing B739) | 13:03 PDT | 19:17 MDT |
| Wed, 22 Apr | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:42 PDT | 11:01 PDT | N452UA (Airbus A320) | 09:08 PDT | 11:03 PDT |
| Tue, 21 Apr | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 17:35 MDT | 22:12 EDT | N36472 (Boeing B739) | 17:32 MDT | 21:50 EDT |
| Tue, 21 Apr | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | N69806 (Boeing B739) | 13:46 PDT | 16:46 MDT |
| Mon, 20 Apr | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 17:35 MDT | 22:12 EDT | 18:09 MDT | 00:09 EDT | |
| Mon, 20 Apr | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | N464UA (Airbus A320) | 13:01 PDT | 16:02 MDT |
| Mon, 20 Apr | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:42 PDT | 11:01 PDT | |||
| Sun, 19 Apr | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 17:35 MDT | 22:12 EDT | N36472 (Boeing B739) | 18:10 MDT | 23:26 EDT |
| Sun, 19 Apr | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | N66814 (Boeing B739) | 12:48 PDT | 16:15 MDT |
| Sat, 18 Apr | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 17:35 MDT | 22:12 EDT | |||
| Sat, 18 Apr | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | N38417 (Boeing B739) | 12:43 PDT | 19:40 MDT |
| Sat, 18 Apr | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:42 PDT | 11:01 PDT | N489UA (Airbus A320) | 09:05 PDT | 10:46 PDT |
| Fri, 17 Apr | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 17:35 MDT | 22:12 EDT | N37470 (Boeing B739) | 17:44 MDT | 22:00 EDT |
| Fri, 17 Apr | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | 13:02 PDT | 16:35 MDT | |
| Fri, 17 Apr | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:42 PDT | 11:01 PDT | N479UA (Airbus A320) | 09:31 PDT | 11:25 PDT |
| Thu, 16 Apr | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 17:35 MDT | 22:12 EDT | N64809 (Boeing B739) | 17:38 MDT | 21:57 EDT |
| Thu, 16 Apr | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | N37420 (Boeing B739) | 13:55 PDT | 16:52 MDT |
| Thu, 16 Apr | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:42 PDT | 11:01 PDT | N437UA (Airbus A320) | 09:34 PDT | 11:20 PDT |
| Wed, 15 Apr | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 17:35 MDT | 22:12 EDT | N12218 (Boeing B738) | 17:42 MDT | 22:18 EDT |
| Wed, 15 Apr | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | |||
| Wed, 15 Apr | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:42 PDT | 11:01 PDT | N1902U ( A320) | 09:10 PDT | 11:48 PDT |
| Tue, 14 Apr | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 17:35 MDT | 22:12 EDT | |||
| Tue, 14 Apr | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | N37464 (Boeing B739) | 13:03 PDT | 16:56 MDT |
| Tue, 14 Apr | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:42 PDT | 11:01 PDT | N435UA (Airbus A320) | 08:53 PDT | 11:45 PDT |
| Mon, 13 Apr | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 17:35 MDT | 22:12 EDT | 17:31 MDT | 20:10 EDT | |
| Mon, 13 Apr | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | 13:42 PDT | 17:00 MDT | |
| Mon, 13 Apr | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:42 PDT | 11:01 PDT | 10:01 PDT | 11:56 PDT | |
| Sun, 12 Apr | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 17:35 MDT | 22:12 EDT | N62849 (Boeing B739) | 17:44 MDT | 22:27 EDT |
| Sun, 12 Apr | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | N62849 (Boeing B739) | 12:43 PDT | 16:26 MDT |
| Sun, 12 Apr | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:42 PDT | 11:01 PDT | N455UA (Airbus A320) | 08:48 PDT | 11:38 PDT |
| Sat, 11 Apr | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 17:35 MDT | 22:12 EDT | N66831 (Boeing B739) | 17:36 MDT | 22:12 EDT |
| Sat, 11 Apr | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | 12:39 PDT | 16:41 MDT | |
| Sat, 11 Apr | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:42 PDT | 11:01 PDT | N15712 (Boeing B737) | 09:02 PDT | 10:15 PDT |
| Fri, 10 Apr | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | N38473 (Boeing B739) | 12:55 PDT | 16:44 MDT |
| Fri, 10 Apr | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:42 PDT | 11:01 PDT | N449UA (Airbus A320) | 09:37 PDT | 11:30 PDT |
| Thu, 09 Apr | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 17:35 MDT | 22:12 EDT | N67827 (Boeing B739) | 17:29 MDT | 21:55 EDT |
| Thu, 09 Apr | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | |||
| Wed, 08 Apr | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 17:35 MDT | 22:12 EDT | N37474 (Boeing B739) | 17:35 MDT | 21:57 EDT |
| Wed, 08 Apr | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | N69810 (Boeing B739) | 13:40 PDT | 16:38 MDT |
| Wed, 08 Apr | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:42 PDT | 11:01 PDT | N466UA (Airbus A320) | 09:32 PDT | 11:15 PDT |
| Tue, 07 Apr | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 17:35 MDT | 22:12 EDT | |||
| Tue, 07 Apr | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | N68880 (Boeing B739) | 13:24 PDT | 16:46 MDT |
| Tue, 07 Apr | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:42 PDT | 11:01 PDT | N496UA (Airbus A320) | 08:50 PDT | 10:47 PDT |
| Mon, 06 Apr | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 17:35 MDT | 22:12 EDT | N38446 (Boeing B739) | 17:28 MDT | 21:53 EDT |
| Mon, 06 Apr | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | 13:41 PDT | 16:13 MDT | |
| Mon, 06 Apr | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:42 PDT | 11:01 PDT | 09:43 PDT | 11:49 PDT | |
| Sun, 05 Apr | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 17:35 MDT | 22:12 EDT | 17:27 MDT | 23:54 EDT | |
| Sun, 05 Apr | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:42 PDT | 11:01 PDT | N460UA (Airbus A320) | 09:34 PDT | 11:16 PDT |
| Sat, 04 Apr | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 17:35 MDT | 22:12 EDT | N61882 (Boeing B739) | 17:33 MDT | 22:00 EDT |
| Sat, 04 Apr | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | N494UA (Airbus A320) | 12:53 PDT | 14:49 MDT |
| Fri, 03 Apr | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 17:35 MDT | 22:12 EDT | N69839 (Boeing B739) | 18:46 MDT | 22:32 EDT |
| Fri, 03 Apr | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | N75429 (Boeing B739) | 12:58 PDT | 16:17 MDT |
| Fri, 03 Apr | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:42 PDT | 11:01 PDT | N477UA (Airbus A320) | 09:28 PDT | 11:38 PDT |
| Thu, 02 Apr | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | 12:38 PDT | 16:21 MDT | |
| Wed, 01 Apr | UA2121 | Denver Intl (DEN) | Gerald R Ford Intl (GRR) | 17:35 MDT | 22:12 EDT | N69824 (Boeing B739) | 17:56 MDT | 22:13 EDT |
| Wed, 01 Apr | UA2121 | San Francisco Intl (SFO) | Denver Intl (DEN) | 12:45 PDT | 16:29 MDT | |||
| Wed, 01 Apr | UA2121 | Seattle Tacoma Intl (SEA) | San Francisco Intl (SFO) | 08:42 PDT | 11:01 PDT | N494UA (Airbus A320) | 10:02 PDT | 12:18 PDT |
Disclaimer for UA2121 Flight Radar Data
Flight UA2121 from San Francisco Intl to Denver Intl data is collected from different sources. The data is for informational purposes only and PlaneMapper is not responsible for the accuracy and reliability of flight UA2121 data.
