La Fortuna Arenal Airport — La Fortuna, Costa Rica

FON is La Fortuna Arenal Airport, a small airstrip near La Fortuna in Costa Rica's Alajuela Province, close to the iconic Arenal Volcano. The airport primarily serves domestic carriers and charter operators flying tourists in from San José, offering a faster alternative to the multi-hour drive through mountainous terrain. Its short runway limits it to small aircraft, fitting the eco-tourism character of the surrounding area known for hot springs, hanging bridges, and volcano-adjacent adventure activities. FON plays an important role in Costa Rica's tourism infrastructure by shortening travel times for visitors heading to one of the country's most visited natural attractions outside the capital region.