With the advent of twin-engine ultra-long range aircraft, airlines have moved from a hub and spoke model to a direct point to point model. Twin-engine aircraft like the Boeing 777-300ER, Boeing 777-200LR, Boeing 787-9, Airbus A350-900ULR, and A350-900 have made ultra long haul flying for more than 15 hours more efficient, thus, many airlines have launched many non-stop ultra-long haul flights.
These ultra long haul flights have greatly reduced the number of stops airlines make, thus, increasing passenger comfort since they do not need to go down and change aircraft. It has also reduced the total travel time passengers need to face when flying between long distant cities.
We now list the 10 world's longest non-stop scheduled passenger flights by "great circle" distance. However, the actual distance and time flown may change and can be longer due to a variety of reasons like avoiding severe weather conditions, detouring around closed airspace, and diverting around war zones.