Find cheap flights to Key West, USA by using Airfare's pioneering search engine software to compare the web's best airfare offers. Fly into nearest Key West airports, including Naples (APF), Miami Intl (MIA), and Sw Florida (RSW). The cheapest airfare ticket arriving in Key West recently was just 109$ landing at Key West Intl (EYW) arriving from Sw Florida (RSW). Find cheap flight tickets on airlines frequently arriving in Key West, such as Continental Airlines (CO), Delta Air Lines (DL), and Northwest Airlines (NW). Search the internet's best travel deals for flights to Key West and worldwide on Airfare today.