Originally Posted by
xliioper
Airfare filings are asymmetric on most international routes. These non-changeable P fares are present for one-ways/roundtrips ex-KUL, but not ex-US. Also, they seem to be limited to KUL-SFO and KUL-LAX routes based on ExpertFlyer fare filings.
The presence of them on any route is a worrisome trend.