Cassidy International Airport (IATA: CXI, ICAO: PLCH) is an airport located north of Banana, a settlement on Kiritimati (pronounced Christmas) island in Kiribati. Until 2018, it was the only airport in the Kiribati part of the Line Islands with an IATA or ICAO code.

The airport is served by Fiji Airways from Nadi, Fiji and Honolulu, United States. Since neither Air Kiribati nor Coral Sun Airways owns aircraft capable of flying between Kiritimati and the Gilbert Islands, where all other operational airports in Kiribati are located, flights to Tarawa are operated by Air Kiribati using Nauru Airlines aircraft.