El Al made the first commercial non-stop Trans-Atlantic flight with a twin-engined airliner in April 1984. They operated a B767-200 between Tel Aviv and Montreal. However, the flight flew a non-ETOPS route
After gaining small exemptions extending the non-ETOPS 60min rule to 75min, Air Canada, El Al and TWA all started using the B767 over the Atlantic during 1984. Using non-ETOPS rules you are forced to use a northerly route to keep within 60 or 75 min of diversion airports in Canada, Greenland and Iceland. Air New Zealand and Qantas were operating similar services in the Pacific.
The first B767-200ER was delivered in October 1984 to Air Canada, with additional redundancy and safety equipment in anticipation of the start of ETOPS services.
TWA operated the first revenue passenger ETOPS flight on 1 February 1985. TWA flight 810 operated from Boston to Paris on a converted B767-200ER, under the new ETOPS 120min rules. A route they were already serving with the B767, but ETOPS allowed a more direct route to be followed...