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As a preventative measure, Aeroplan has removed all Air China award space from their systems. You cannot book Air China award flights through the Air Canada Aeroplan program at this time, even if the space is available to other Star Alliance partners.Look, for example, at, which typically has plentiful award space.his has been a long long time issue, when booking CA with UA award miles. Ben, This just happened to me with United also. I booked a flight for my friend (using his miles) on Air China business class from LAX-Beijing-Narita back in February (before the devaluation) for travel in late August.
Eligible Flights: Accrual valid on flights marketed by China Eastern or Shanghai Airlines, operated by China Eastern, Shanghai Airlines or other SkyTeam Partner. (1) Partner-marketed flights that are not ticketed by Delta will continue to earn miles based on a percentage of distance flown* as determined by the fare class paid. Unless otherwise noted, mileage credit is only applicable to Delta partner flights that are marketed and operated by that partner or Delta.