Let's not forget the NZ5/6 that flies daily LAX-AKL (6,500 miles) nonstop in a 777 - QANTAS also fly this route using a 330 - that's nearly 3 consecutive maximum ETOPS flights end-to-end.
Some of the (north) polar flights must also get a long way from the nearest 'suitable' airfield. What about the SQ21/22 EWR-SIN? Not much between Quebec and Irkutsk (5,600 miles)!