Flight UAL2121 UA2121

United Airlines

Last contact 15 hours ago
KSEA
Seattle–Tacoma International Airport
Seattle
→
KGRR
Gerald R. Ford International Airport
Grand Rapids
Altitude
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Ground speed
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Vertical rate
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Track
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Squawk
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Source
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Figures refresh every 15 seconds while the flight is airborne.

30-day history

Date Aircraft From To First contact Last On air Max altitude
23.10.2026 A445F3 KSEA Seattle KGRR Grand Rapids 00:19 UTC 02:21 UTC 2 h 1 min 37 000 ft
22.10.2026 A445F3 KSEA Seattle KGRR Grand Rapids 23:48 UTC 00:04 UTC 0 h 17 min 0 ft
21.10.2026 A44610 KSEA Seattle KGRR Grand Rapids 23:42 UTC 02:17 UTC 2 h 35 min 31 000 ft
20.10.2026 A5D668 KSEA Seattle KGRR Grand Rapids 23:54 UTC 02:19 UTC 2 h 24 min 35 000 ft
19.10.2026 A12B53 KSEA Seattle KGRR Grand Rapids 23:55 UTC 02:14 UTC 2 h 20 min 35 000 ft
18.10.2026 A445C7 KSEA Seattle KGRR Grand Rapids 23:43 UTC 02:11 UTC 2 h 27 min 35 000 ft
18.10.2026 A12A80 KSEA Seattle KGRR Grand Rapids 00:02 UTC 02:34 UTC 2 h 32 min 35 000 ft
16.10.2026 A12A9D KSEA Seattle KGRR Grand Rapids 23:49 UTC 02:21 UTC 2 h 33 min 35 000 ft
16.10.2026 A12B31 KSEA Seattle KGRR Grand Rapids 00:04 UTC 02:20 UTC 2 h 16 min 35 025 ft
15.10.2026 A2B7F5 KSEA Seattle KGRR Grand Rapids 00:02 UTC 02:07 UTC 2 h 5 min 45 700 ft
13.10.2026 A445AB KSEA Seattle KGRR Grand Rapids 23:44 UTC 01:49 UTC 2 h 5 min 35 000 ft
13.10.2026 A12A82 KSEA Seattle KGRR Grand Rapids 01:06 UTC 03:07 UTC 2 h 1 min 33 000 ft
11.10.2026 A448D3 KSEA Seattle KGRR Grand Rapids 23:43 UTC 02:02 UTC 2 h 19 min 37 000 ft
10.10.2026 A12A81 KSEA Seattle KGRR Grand Rapids 23:53 UTC 02:14 UTC 2 h 21 min 37 000 ft
09.10.2026 A2B89E KSEA Seattle KGRR Grand Rapids 23:53 UTC 02:15 UTC 2 h 22 min 35 025 ft
09.10.2026 A2BBAC KSEA Seattle KGRR Grand Rapids 00:06 UTC 02:33 UTC 2 h 27 min 37 000 ft
07.10.2026 A41E2C KSEA Seattle KGRR Grand Rapids 23:47 UTC 02:11 UTC 2 h 24 min 35 000 ft
06.10.2026 A5D33B KSEA Seattle KGRR Grand Rapids 23:58 UTC 02:37 UTC 2 h 39 min 37 050 ft
05.10.2026 N77558 KSEA Seattle KGRR Grand Rapids 23:49 UTC 02:18 UTC 2 h 29 min 37 000 ft
04.10.2026 N77575 KSEA Seattle KGRR Grand Rapids 23:38 UTC 01:52 UTC 2 h 13 min 35 000 ft
04.10.2026 N37549 KSEA Seattle KGRR Grand Rapids 00:09 UTC 02:25 UTC 2 h 15 min 33 000 ft
02.10.2026 AA7AA0 KSEA Seattle KGRR Grand Rapids 23:39 UTC 02:07 UTC 2 h 28 min 37 000 ft
02.10.2026 A12F70 KSEA Seattle KGRR Grand Rapids 01:00 UTC 02:20 UTC 1 h 20 min 25 000 ft
01.10.2026 A12F70 KSEA Seattle KGRR Grand Rapids 23:59 UTC 00:42 UTC 0 h 42 min 25 000 ft
30.09.2026 A5D319 KSEA Seattle KGRR Grand Rapids 23:42 UTC 02:13 UTC 2 h 31 min 37 000 ft
29.09.2026 A12AC9 KSEA Seattle KGRR Grand Rapids 23:52 UTC 01:58 UTC 2 h 5 min 35 000 ft
29.09.2026 A12B2B KSEA Seattle KGRR Grand Rapids 00:19 UTC 02:23 UTC 2 h 3 min 35 000 ft
28.09.2026 A3CF4F KSEA Seattle KGRR Grand Rapids 00:51 UTC 02:57 UTC 2 h 6 min 35 000 ft
28.09.2026 A3CF4F KSEA Seattle KGRR Grand Rapids 00:35 UTC 00:35 UTC 0 h 0 min 0 ft
28.09.2026 A3CF4F KSEA Seattle KGRR Grand Rapids 00:00 UTC 00:03 UTC 0 h 3 min 0 ft
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