I need to visit my grandfather and have about 50,000 points in my AMEX Rewards. I need to travel from (MIA) Miami, FL to (BOG) Bogota, Colombia round trip to visit my grandfather who's really sick right now.

Is there anyway I can use points in a smart way to help me travel? I know there is a bonus right now for British Airways Avios but I can't figure out how to book a rewards flight to Bogota.

Any tips would be extremely appreciated.