The most popular airlines flying from Pittsburgh to Chiapas are Spirit Airlines, American Airlines and United Airlines. Something to consider prior to booking your flight.
In terms of precipitation, rainfall in Chiapas ranges from 0.2 - 17.1 inches per month. September is typically the wettest month, when rainfall can reach 17.1 in. February is typically the driest time to visit Chiapas when rainfall is around 0.2 in.
If weather is an important factor for your trip to Chiapas, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 78.8 F).