El Al
On 23 July 1968, El Al Flight 426, operated by a Boeing 707-458C en route from London to Tel Aviv via Rome, registered 4X-ATA, was hijacked by three members of the Popular Front for the Liberation of Palestine (PFLP) shortly after take-off from Rome-Fiumicino airport and forcibly diverted to Algiers. The hijacking ended after 40 days and is considered to be the only successful hijacking involving an El Al jet.