Oristano-Fenosu Airport (IATA: FNU, ICAO: LIER) is a small regional airport in central western Sardinia, Italy. It is in the farming village of Fenosu, approximately 3 kilometres (1.9 mi) east of the town of Oristano, and is lapped by highway 131, the island's most important road artery. It is only available to general aviation, and has no commercial flights, though it was the home base of the short-lived FlyOristano.

Oristano-Fenosu Ernesto Campanelli Airport Aeroporto di Oristano "E. Campanelli"
IATA: FNU ICAO: LIER
Summary
Airport type	Public
Serves	Oristano
Location	Oristano, Italy
Coordinates	39°53′43″N 8°38′33″E / 39.895415°N 8.642592°E / 39.895415; 8.642592 (Oristano-Fenosu Airport)
Website	www.sogeaor.it
Runways
Direction Length Surface ft m 14/32 3,934 1,199 Asphalt

The airport was named for Ernesto Campanelli [it], an Italian aviator.