Originally Posted by wheresmybagba

The case is their F availability is very generous and it is regularly available on any route that has an F cabin: FRA, LHR, CDG, ZRH, MUC, MXP, FCO, SYD. In my experience the tightest for availability is the overnight BKK-LHR but even that is not difficult to grab a seat on.

Edit...actually I'll take that back, forgot NRT...availability is probably tightest on that route.

In Asia there's also F service to HKG, KIX and PEK.