Here is a low cost, high flight miles American Airlines airfare from Vancouver YVR to Rio de Janeiro, Brazil GIG for $513 USD that earns 15,207 EQM. Fly Vancouver to Phoenix to New York JFK to Rio de Janeiro on the outbound. Return is Rio to Miami to Dallas to Vancouver.
These $513 round trip fares are available for around 15 departure dates in April and May 2016.
Los Angeles and San Francisco fares around $589 to $604 are available on many dates in April and May to Rio de Janeiro GIG. Las Vegas is even lower at $562 round trip.
American Airlines Vancouver YVR to Rio de Janeiro GIG
$681.41 CAD = $512.58 USD Wed May 11 – Tue May 17, 2016