Rinse and drain squid well. Pat squid dry with paper towels. Sprinkle salt on squid.
Put flour and a few squid in a small paper or plastic bag. Shake the squid rounds in the bag until coated. Remove squid and place more in the sack to coat.
Heat oil in a medium size frying pan over a high heat. Fry the calamari in the oil until golden brown and crispy. Drain the calamari on paper towels. Serve hot.