it might depend on which scheme you intend to use. Your BD scheme and, for example, the BA scheme have different levels of membership/status miles. which one you want/need might have different values to you.
to keep my BA status, i might change lhr-lca (40 tier points in CE) to lgw-bud and bud-lca (80 tier points in CE), if i start from dub i can make 120 tier points each way on one trip.
for LH flights you can check them on their website. you can do a trip via FRA and ATH from the uk.