240 minutes (at least) is needed for some routes across the South Pacific, ie Argentina to Sydney, also Perth to Harare and Joburg.
CX747, never missing a chance to deliberately misinterpret a remark and kick off that Airbus vs Boeing thing. Airbus may have pioneered heavy twins, but the 767 was the first ETOPS twin by a mile. A300 Classics have never been used on ETOPS routes, only the -600R. So sorry to deprive you of your moral high horse, Boeing started it. And please refrain from reading things into posts that aren't in fact meant (as is usually obvious).
fly Saha Air 707s daily from Tehran's downtown Mehrabad to Mashhad, Kish Island and Ahwaz