The Federal Aviation Authority had stirred controversy in Israel by telling airlines to avoid Tel Aviv's airport. More than 700 Palestinians and 30 Israelis have died since fighting began July 8.
After a reported Gaza rocket strike near Israel's Ben Gurion Airport, the US suspended commercial flights to and from Tel Aviv.
Amazon is aiming to use drones to deliver packages to customers in 30 minutes or less. Currently, the FAA has a ban on the commercial use of unmanned aerial vehicles.