a) competition forces airlines to charge the same between 2 cities, regardless of routing b) Southwest does if you chose to fly between 2 cities on flights that are not shown in the timetable. For example, if you want to fly from Oakland to Dallas, you would have to chose your own connecting flights as this routing is not shown in the timetable. David R > Never understood this: > > Airlines can price their airfares based on either: > > a) Origin and Destination (regardless of routing) > b) By actual legs. > > Why do most airlines choose a) ? > > Which ones follow b)? > > I get the "got-to-steal-those customers" angle, but why would any > business (especially a capital and operating cost intensive one) want > the revenue model to be completely disconnected from the cost structure? > > Matthew