Aeromexico has dropped airfare to Colombia below $300 round-trip from a few US cities for spring travel. Other airlines also have some great fares to Colombia from a variety of cities. Act fast to snag one of these great deals to South America. Fares start at just $246 round-trip and may jump in price at any time.
Travel is mostly valid through May, though some cities may have availability for late summer/fall travel as well. A few routes may require an overnight layover in Mexico City, but most of these will allow you to connect on the same day. Some of these low fares are on other airlines such as JetBlue, American, Delta, and United.
There's no telling when these fares will jump back up in price. Act fast for a cheap trip down to South America. You'll have a day to finalize plans with a 24-hour risk-free cancellation policy on most third party sites.