That total includes 1,210 airstrike missions over the same three and a half month period. The U.S. has also conducted 101 Predator drone strike missions in Libya.
A U.S. official credited NATO flight cover over the past many months with allowing the Libyan rebels enough time to eventually regroup and begin their pushes.
One significant offset to the cost of U.S. involvement in the flights worth noting is the sale of military equipment to allies also involved in the cause. Pentagon officials say the sale of ammunition, replacement parts, fuel, and technical assistance to allies since March has totaled $221.9 million.