Nope. AC doesn't have F, only C.

Nevertheless, flying in C/F for the cost of Y is nice.

And to answer the question, I'd say flying something like:

LX - SFO-ZRH
TG - ZRH-BKK
TG - BKK-NRT
NH - NRT-FRA
LH - FRA-SFO

All in F for 145,000 miles. That's the same amount of miles to fly SFO-ICN round-trip in UA F.