Excursion Inlet Seaplane Base (IATA: EXI, FAA LID: EXI) is a state owned, public use seaplane base located in Excursion Inlet, in the Haines Borough of the U.S. state of Alaska. Scheduled passenger service is subsidized by the U.S. Department of Transportation via the Essential Air Service program.

This airport is included in the National Plan of Integrated Airport Systems for 2015–2019, which categorized it as a general aviation airport based on 69 enplanements (boardings) in calendar year 2012. As per Federal Aviation Administration records, the airport had 69 passenger enplanements in calendar year 2008, 68 enplanements in 2009, and 30 in 2010.