Originally Posted by UserMark
Don't forget you get 6 segments in North America. No need to do BOS-LGA separately. It would be your 20th segment. AA flies BOS-JFK too.
SYD-HKGx-LHR on CX counts two segments because of no single flight number flight.
So, this itinerary already uses 20 segments.
Of course, newcx12345 knows this, so BOS-LGA is excluded.