The unit cost of the F/A-18E/F Super Hornet is estimated to be around $70 million for the single-seat F/A-18E and $78 million for the two-seat F/A-18F. However, the actual cost can vary depending on various factors such as the configuration of the aircraft, additional equipment installed, and the specific terms negotiated between the purchaser and the manufacturer.
It's worth noting that the cost of an F/A-18E/F Super Hornet does not include the expenses related to its operation, such as maintenance, fuel, training, and support systems. These costs can add significantly to the overall lifecycle cost of the aircraft.