MS Flight 804 disappeared from radar last night in the Mediterranean Sea.
The plane is registered symbol SU-GCC, and it was delivered to EgyptAir in November 2003.
The machine has flown some 48 000 flight hours.
Lost A320 is a twin-engine narrow-bodied aircraft, with capacity for 150 passengers.
The first Airbus A320 was introduced in March 1988.
By the end of April, the types of aircraft had flown more than 6,700 flights.