Thank you. I just checked the LH website to verify the plane. I have pasted it here.

Munich - Denver

Departs on Monday, 11 March 2024

Total duration: 10h 45m

Total duration: 10 hours and 45 minutes
10h 45m
16:05Munich
Munich International (MUC)
Terminal 2
19:50Denver
Denver International (DEN)
Flight duration 10 hours and 45 minutes
SN 8902
operated by United Airlines
BOEING 787-9


And this is a copy paste from UA website
UA 761
4:05 PMDeparting at 4:05 PM
7:50 PMArriving at 7:50 PM
MUC Origin Munich, DE (MUC)
10H, 45MDuration 10 hours and 45 minutes
DENDestination Denver, CO, US (DEN)
Munich, DE (MUC) to Denver, CO, US (DEN)
UA 761 (Boeing 787-9 Dreamliner)