I am going to be about 18.5K miles short this year of requalifying for Senator.

Anyone know of a good routing to rack up that amount of miles in one day starting in CGN/DUS/FRA ? Presumably this will involve traveling in C and not Y. Unfortunately I've already used my "double status miles" promotion (to get an extra 500 miles from the train ride between QKL and FRA -- not worth it).

I have next year to requalify as well, and I will almost surely do 100K then, but I thought I might use those miles to qualify for *G on UA and get the SWUs.

Thanks in advance.