Nudger, At UA we are going to the zone system for interline tickets. For online tickets, all yc and cc travel is free, you pay a surcharge for fc(under 150 usd for nrt-sfo for example).Pass priviledges are extended to parents, spouse and children up to age 22.We also receive 'buddy passes' 24 one sector coupons that we may give to anyone, they do not have to travel with us.We are liable on the free tickets for any customs fees/airport fees,etc.
------------------
A free ride and a free meal are 2 of the 3 things no pilot ever turns down....