14 Feb
UA2121
EST. DEPART IN 1d
00:41
Denver, CO (DEN)
03:15
Grand Rapids, MI (GRR)
02h34m
N36272 (B738)
1630 km
Estimated
00:41
In 2 days
Estimated
03:15
In 2 days
UA2121
UAL2121
EST. DEPART IN 1d
Saturday, February 14 2026
17:41 MST
ON-TIME
Scheduled 17:41
Saturday, February 14 2026
22:15 EST
Scheduled 22:15
Flight info
Airline/Operator
Duration
02h34m
Distance
1630 km
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
-
Aircraft Age
Owner
Last Activity
1 minute ago
Last Known Location
In flight - Near Crested Butte, 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
  • 14 Feb
    UA2121
    EST. DEPART IN 1d
    00:41
    Denver, CO (DEN)
    03:15
    Grand Rapids, MI (GRR)
    02h34m
    N36272 (B738)
    1630 km
    Estimated
    00:41
    In 2 days
    Estimated
    03:15
    In 2 days
  • 13 Feb
    UA2121
    EST. DEPART IN 21h 27m
    00:41
    Denver, CO (DEN)
    03:15
    Grand Rapids, MI (GRR)
    02h34m
    N76519 (B738)
    1630 km
    Estimated
    00:41
    In 21 hours
    Estimated
    03:15
    In 1 day
  • Current
  • 12 Feb
    UA2121
    LANDING LATE IN 17m
    01:23
    Denver, CO (DEN)
    03:34
    Grand Rapids, MI (GRR)
    02h34m
    N37298 (B738)
    1630 km
    Departed
    01:23
    2 hours ago
    Estimated
    03:34
    In 17 minutes
  • Past
  • 11 Feb
    UA2121
    LANDED 23h 28m AGO
    01:08
    Denver, CO (DEN)
    03:45
    Grand Rapids, MI (GRR)
    01h57m
    N77258 (B738)
    1630 km
    Departed
    01:08
    1 day ago
    Arrived
    03:45
    23 hours ago
  • 10 Feb
    UA2121
    LANDED 1d AGO
    00:58
    Denver, CO (DEN)
    03:44
    Grand Rapids, MI (GRR)
    01h47m
    N33266 (B738)
    1630 km
    Departed
    00:58
    2 days ago
    Arrived
    03:44
    2 days ago
  • 9 Feb
    UA2121
    LANDED 2d AGO
    00:54
    Denver, CO (DEN)
    03:30
    Grand Rapids, MI (GRR)
    01h54m
    N77530 (B738)
    1630 km
    Departed
    00:54
    3 days ago
    Arrived
    03:30
    3 days ago
  • 8 Feb
    UA2121
    LANDED 3d AGO
    01:09
    Denver, CO (DEN)
    03:49
    Grand Rapids, MI (GRR)
    02h03m
    N73278 (B738)
    1630 km
    Departed
    01:09
    4 days ago
    Arrived
    03:49
    4 days ago
  • 7 Feb
    UA2121
    LANDED 4d AGO
    01:24
    Denver, CO (DEN)
    03:43
    Grand Rapids, MI (GRR)
    01h57m
    N37255 (B738)
    1630 km
    Departed
    01:24
    5 days ago
    Arrived
    03:43
    5 days ago
  • 6 Feb
    UA2121
    LANDED 5d AGO
    00:57
    Denver, CO (DEN)
    03:26
    Grand Rapids, MI (GRR)
    02h03m
    N18243 (B738)
    1630 km
    Departed
    00:57
    6 days ago
    Arrived
    03:26
    6 days ago
DateOriginSTDATDDestinationSTAAircraftDelayStatusDurationReplay
Future
2026 Feb 14Denver, CO (DEN/KDEN)
17:41 MST
Grand Rapids, MI (GRR/KGRR)
22:15 EST
B738 (N36272)
Estimated
02h34m
2026 Feb 13Denver, CO (DEN/KDEN)
17:41 MST
Grand Rapids, MI (GRR/KGRR)
22:15 EST
B738 (N76519)
Estimated
02h34m
Current
2026 Feb 12Denver, CO (DEN/KDEN)
17:41 MST
18:23 MST
Grand Rapids, MI (GRR/KGRR)
22:15 EST
B738 (N37298)
Est. Arrival 22:34 EST
02h34m
Past
2026 Feb 11Denver, CO (DEN/KDEN)
18:08 MST
18:08 MST
Grand Rapids, MI (GRR/KGRR)
22:45 EST
B738 (N77258)
Landed 22:45 EST
Time aircraft arrives at gate derived from company/airport information
01h57m
2026 Feb 10Denver, CO (DEN/KDEN)
18:00 MST
17:58 MST
Grand Rapids, MI (GRR/KGRR)
22:37 EST
B738 (N33266)
Landed 22:44 EST
Time aircraft arrives at gate derived from company/airport information
01h47m
2026 Feb 9Denver, CO (DEN/KDEN)
18:00 MST
17:54 MST
Grand Rapids, MI (GRR/KGRR)
22:37 EST
B738 (N77530)
Landed 22:30 EST
Time aircraft arrives at gate derived from company/airport information
01h54m
2026 Feb 8Denver, CO (DEN/KDEN)
18:00 MST
18:09 MST
Grand Rapids, MI (GRR/KGRR)
22:37 EST
B738 (N73278)
Landed 22:49 EST
Time aircraft arrives at gate derived from company/airport information
02h03m
2026 Feb 7Denver, CO (DEN/KDEN)
18:00 MST
18:24 MST
Grand Rapids, MI (GRR/KGRR)
22:37 EST
B738 (N37255)
Landed 22:43 EST
Time aircraft arrives at gate derived from company/airport information
01h57m
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

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