Originally Posted by
aacharya
Minor nuance - certain international flights are eligible for CPUs but they are short-hauls (Canada, Mexico, etc).
And some domestics are ineligible (east coast to/from HNL, ps, etc).
I was just looking at reservations for January to San Juan PR. The flights within the Continental US are displaying "
Complimentary Premier Upgrade Requested" but the flights to/from SJU are not. It looks like UA may be becoming more restrictive as to which flights will be CPU eligible.