In the other thread OP clarified that he is flying LHR-DXB-XXX in J and then XXX-DXB-LHR in Y. In LHR he has a better chance. OP also has the option of a 4 hr or 1 hr layover in DXB which I'd go with the 1 hour in this instance.
Originally Posted by
skywardhunter
There are two parallel discussions on this and in the other thread OP clarified leg= segment i.e. the entire outbound incl ex DXB