Originally Posted by
tehiota
Just to clarify, it is possible to get Complimentary upgrades (CPUs) on 'international' flights; it just depends on destination. Central and 'Northern' South America are eligible for CPUs per United's website. (
http://www.united.com/web/en-US/cont...e/default.aspx)
[I realize the OP was talking about Europe, but wanted to clarify the response for future searches]
Wasn't it also established in another thread that CPUs are running on intra-Asia routes?