When my attempt at an open jaw did not produce any savings I was directed here to see if a RTW would work. I have read the rules. I have run the itinerary through the oneworld web site. It seems to work, but I have a couple of questions about such a ticket.

The trip is much later next year. It consists of DFW-LHR, 2 hour wait for LHR-IST, a land segment of three weeks, then DXB-HKG with a few hours in HKG to connect to HKG-LAX.

The questions are:

Is this a legal itinerary?

What does the minimum 10 days mean? I take it to mean the entire trip from beginning to end must span at least 10 days.

All the tickets will be F, except for one which is a J only flight. How likely is it that I will find myself downgraded as none of these will be full fare F tickets? If I cannot be 100 percent certain of F on these long flights I would prefer to just pay a full F fare.