I used United.com expert mode it does show united flight number but NH operated
Option1:J9,C9,D7,Z2,P0,O0,A0,R0,Y0,B0,M0,U0,H0,Q0, V0,W0,S0,L0,K0
Option2:J9,C9,D9,Z9,P9,O9,A8,R0
I have to book Option2. correct?
This time I do J-F upgrade. And I need O class is higher than 0. right?