Matteo R.
Yelp
I'm a big fan of this airport: small, clean, and easy to navigate, it has enough food options and shops to keep you busy if you have some time to kill, without being overwhelmed with options.
Among the highlights are a bookstore and newsstand that is actually loaded with books, shops selling authentic Sardinian food and wine[1], and clothing shops selling brands who use the Sardinian flag of the Four Moors [2] as logo, which make for nice gifts.
On the second floor, right by the police station, there is a seating area which is very quiet, with rarely a few people.
The not-so-great thing about this airport is that public transportation is very limited: You have one bus that will take you to the main touristic destinations on the island[3], and taxis. And that's it. I strongly suggest to arrange for your transportation ahead of your flight.
I was also very impressed with the COVID testing facility on-site. I had to take a COVID test before flying back to the US, and booking it on-line was very easy, with 3 options from rapid antigen test (result in 30 minutes) to two molecular tests (result in 6 hours or 24 hours). The Health Testing Center is near Terminal 1, and is super-clean. When I got there the day before my flight there were barely any people: I got tested at 10:21am, and at 10:23am I received the result by email. I wish it was this easy to get a test in the US...
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[1] Sardinian wines are highly underrated. Vermentino is a very enjoyable white wine, and Cannonau and Nepente di Oliena two red wines I like a lot.
[2] https://en.wikipedia.org/wiki/Flag_of_Sardinia
[3] https://www.geasar.it/en/how-to-get-here/by-bus