After seeing Mexico City to Lima, Peru on Copa Airlines for $151 today, I checked for other low fare routes to South America and found Mexico City to Medellin MDE, Colombia priced at $194 round trip. This fare is available nearly every date from August 10 into November 2015.
Copa Airlines Connect frequent flyer program launched July 1, 2015 as a Star Alliance member airline. This super discount economy fare books in L class and earns 100% flight miles as redeemable miles and EQM in the new Copa Connect program. You can also earn 5,000 Welcome bonus miles in Copa Connect with 3,000 miles for completing your member profile and 2,000 bonus miles for your first flight.
Copa Airlines Mexico City MEX – Panama City PTY – Medellin, Colombia MDE
$193.64 Wednesday September 2 – Wednesday September 9, 2015
Copa Airlines L class earns 50% base miles in United Airlines Mileage Plus if that is preferable for your flying.