Originally Posted by
Gardyloo
Wikitravel is in error. All miles count, including the miles for surface segments.
Agreed. Treatment is identical for OW and *A.
In both cases single flight number mileage is used. So LHR-(BKK/SIN)-SYD without an en route stopover and booked as a single flight number uses mileage for LHR-SYD ignoring the transit. However book as 2 flight numbers or with a stopover and each flight's mileage is used.