Ethan Yang
Spotted overhead ·
9:32 PM
· Thu, May 21, 2026
UAL2121
United Airlines · UA2121 · Boeing 737-900 · N66837
DEN
Denver International Airport
›
GRR
Grand Rapids Gerald R. Ford International Airport
Altitude
FL310
Speed
525 KT
ICAO Hex
A8D4D2
Squawk
2722