Most of the time, pretty much worthless. No cheaper than what you get directly at your airline website, or at one of the online travel agencies.
Once in a while, holy cow! My brother-in-law found a $352 USD all-in from New York City to Buenos Aires (EZE, their International Airport). I love living in Uruguay but it’s one of the most expensive ex-US airfares for the actual flight distance. Likewise, Buenos Aires, Argentina, where many Uruguay visitors arrive and then take the Buquebus ferry across the Rio de la Plata. Continue reading