Originally Posted by Shareholder

As noted, most spreads are between $30 and $50 on a domestic transcon one-way, depending upon which fare buckets are left in TANGO versus TANGO PLUS. AC advertises the value of purchasing TANGO PLUS over TANGO by noting the seat reservation and full status Aeroplan miles. And as others have also noted, there is still little price spread between the two on transborder flights.