Find a great deal and save up to 7% by booking at least 61 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Harlingen to Colombia within the next two weeks, with the cheapest ticket starting at $524.
Due to multiple factors, expect to potentially pay more when booking in December. For low rates, February can be a great choice for travel to Colombia. Flights to Colombia from Harlingen in February are about $490 on average during February, but can be found for as low as $358.