Here is a fun airfare hack.
However some suggest searching gateway cities for cheaper prices. I.e. San Francisco for flights to Asia, or Houston or Miami for flights to points south.
Case in point: Denver to Laz Paz Bolivita, clocks in at $1,097. Reasonable price for this time of year for hopping to another continent. However, separating these out finds Miami to La Paz at $654, and transit over to Miami at $284, $159 cheaper.
Of course there are risks associated. If you miss your Miami-Pa Paz flight on TACA because your American flight was delayed, you’ll be responsible for re-scheduling and any fees. And, this method also requires collecting and re-checking bags midpoint. But, it also lets you build a long layover in Miami if you desire too.
Food for thought.