wonder how to change routing after frst segment is flown?
what is the full fare rule again?
my outbound is tpe nrt dfw with nrt dfw with aa metal and jl code. the layover is 1 hours. not sure if i can push the nrt dfw to JL so that I can apply JL mileage upgrade.... or change it to NRT HNL DFW that i apply mileage upgrade on NRT HNL and then try for upgrade on AA as exec plat.
(i am JL sapphire and AA emerald.)