2 Feb
UA2121
LANDED 4d AGO
00:52
Denver, CO (DEN)
04:25
Grand Rapids, MI (GRR)
01h57m
N77538 (B738)
1630 km
Departed
00:52
5 days ago
Arrived
04:25
5 days ago
UA2121
UAL2121
LANDED 4d AGO
Monday, February 2 2026
17:52 MST
Scheduled 18:00
Monday, February 2 2026
23:25 EST
DELAYED
Scheduled 22:37
Flight info
Airline/Operator
Duration
01h57m
Distance
1630 km
Operation Days
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Departure Gate
A38
Arrival Gate
A3
Departure Taxi Time
33m
Arrival Taxi Time
63m
ATC Route
KDEN.EEONS8.WYNDM..OBH..ALO..VIO..KGRR/0325
Position Info
Latitude
-
Longitude
-
Altitude
-
Ground Speed
Wind
Air Temperature
Vertical Speed
Heading
-
Squawk
-
Source
-
Station
-
FIR
Aircraft Info
Aircraft Model
Registration
Mode-S
Serial Number
63694/6204
Aircraft Age
Owner
Last Activity
4 minutes ago
Last Known Location
St Louis, MO, United States
Last Flight
Aircraft Type
Nr. Engines
Nr. Seats
Weight Class
Cruising Speed
Engine
Engine Type
Aircraft Category
Registrant Type
Airworthiness Class
Operation Types
Certificate Issue Date
Registration Status
Flight Activity
  • Future
  • 9 Feb
    UA2121
    EST. DEPART IN 1d
    01:00
    Denver, CO (DEN)
    03:37
    Grand Rapids, MI (GRR)
    02h37m
    N34222 (B738)
    1630 km
    Estimated
    01:00
    In 2 days
    Estimated
    03:37
    In 2 days
  • 8 Feb
    UA2121
    EST. DEPART IN 22h 22m
    01:00
    Denver, CO (DEN)
    03:37
    Grand Rapids, MI (GRR)
    02h37m
    N73278 (B738)
    1630 km
    Estimated
    01:00
    In 22 hours
    Estimated
    03:37
    In 1 day
  • Current
  • 7 Feb
    UA2121
    LANDING IN 1h
    01:24
    Denver, CO (DEN)
    03:38
    Grand Rapids, MI (GRR)
    02h37m
    N37255 (B738)
    1630 km
    Departed
    01:24
    1 hour ago
    Estimated
    03:38
    In 1 hour
  • Past
  • 6 Feb
    UA2121
    LANDED 23h 11m AGO
    00:57
    Denver, CO (DEN)
    03:26
    Grand Rapids, MI (GRR)
    02h03m
    N18243 (B738)
    1630 km
    Departed
    00:57
    1 day ago
    Arrived
    03:26
    23 hours ago
  • 5 Feb
    UA2121
    LANDED 1d AGO
    01:00
    Denver, CO (DEN)
    03:32
    Grand Rapids, MI (GRR)
    02h15m
    N37281 (B738)
    1630 km
    Departed
    01:00
    2 days ago
    Arrived
    03:32
    2 days ago
  • 4 Feb
    UA2121
    LANDED 2d AGO
    00:51
    Denver, CO (DEN)
    03:46
    Grand Rapids, MI (GRR)
    02h16m
    N17405 (B39M)
    1630 km
    Departed
    00:51
    3 days ago
    Arrived
    03:46
    3 days ago
  • 3 Feb
    UA2121
    LANDED 3d AGO
    00:50
    Denver, CO (DEN)
    03:26
    Grand Rapids, MI (GRR)
    02h08m
    N87527 (B738)
    1630 km
    Departed
    00:50
    4 days ago
    Arrived
    03:26
    4 days ago
  • 2 Feb
    UA2121
    LANDED 4d AGO
    00:52
    Denver, CO (DEN)
    04:25
    Grand Rapids, MI (GRR)
    01h57m
    N77538 (B738)
    1630 km
    Departed
    00:52
    5 days ago
    Arrived
    04:25
    5 days ago
  • 1 Feb
    UA2121
    LANDED 5d AGO
    00:55
    Denver, CO (DEN)
    03:52
    Grand Rapids, MI (GRR)
    02h08m
    N37281 (B738)
    1630 km
    Departed
    00:55
    6 days ago
    Arrived
    03:52
    6 days ago
DateOriginSTDATDDestinationSTAAircraftDelayStatusDurationReplay
Future
2026 Feb 9Denver, CO (DEN/KDEN)
18:00 MST
Grand Rapids, MI (GRR/KGRR)
22:37 EST
B738 (N34222)
Estimated
02h37m
2026 Feb 8Denver, CO (DEN/KDEN)
18:00 MST
Grand Rapids, MI (GRR/KGRR)
22:37 EST
B738 (N73278)
Estimated
02h37m
Current
2026 Feb 7Denver, CO (DEN/KDEN)
18:00 MST
18:24 MST
Grand Rapids, MI (GRR/KGRR)
22:37 EST
B738 (N37255)
Est. Arrival 22:38 EST
02h37m
Past
2026 Feb 6Denver, CO (DEN/KDEN)
18:00 MST
17:57 MST
Grand Rapids, MI (GRR/KGRR)
22:37 EST
B738 (N18243)
Landed 22:26 EST
Time aircraft arrives at gate derived from company/airport information
02h03m
2026 Feb 5Denver, CO (DEN/KDEN)
18:00 MST
18:00 MST
Grand Rapids, MI (GRR/KGRR)
22:37 EST
B738 (N37281)
Landed 22:32 EST
Time aircraft arrives at gate derived from company/airport information
02h15m
2026 Feb 4Denver, CO (DEN/KDEN)
18:00 MST
17:51 MST
Grand Rapids, MI (GRR/KGRR)
22:37 EST
B39M (N17405)
Landed 22:46 EST
Time aircraft arrives at gate derived from company/airport information
02h16m
2026 Feb 3Denver, CO (DEN/KDEN)
18:00 MST
17:50 MST
Grand Rapids, MI (GRR/KGRR)
22:37 EST
B738 (N87527)
Landed 22:26 EST
Time aircraft arrives at gate derived from company/airport information
02h08m
2026 Feb 2Denver, CO (DEN/KDEN)
18:00 MST
17:52 MST
Grand Rapids, MI (GRR/KGRR)
22:37 EST
B738 (N77538)
Landed 23:25 EST
Time aircraft arrives at gate derived from company/airport information
01h57m
2026 Feb 1Denver, CO (DEN/KDEN)
18:00 MST
17:55 MST
Grand Rapids, MI (GRR/KGRR)
22:37 EST
B738 (N37281)
Landed 22:52 EST
Time aircraft arrives at gate derived from company/airport information
02h08m

Flight history for UA2121 is available for a period over 7 days under our Basic subscription. More details here
More airport data is available for purchase. Please check our On Demand API.