Here's information on the airport from a travel security service used by Five Oaker David Neibling who works with Campus Crusade's International Leadership Academies.
Preliminary reports indicate that damage in Port-au-Prince and the surrounding area is extensive and that most of the city has been destroyed. The quake has also caused massive power and communications outages across the country, hindering rescue efforts. Reports indicate that the communications tower at Toussaint Louverture International Airport (MTPP/PAP) has collapsed, but the rest of the airport was not significantly damaged and the airport remains open. However, the main road leading to the airport is blocked with rubble and debris. American Airlines and Spirit Airlines have both canceled all flights to Haiti until further notice, and Delta Air Lines has halted its only flight to and from the country out of New York’s JFK airport.