Originally Posted by
FlyingMoose
If you need to layover in CPH, it opens the possibility to layover in other EU airports and have a choice of better airlines.
And connecting in ORD does not have the alternative of connecting in Munich, Frankfurt, Amsterdam? It is not just connecting in Copenhagen that opens the door to considering other connection points. It happens as soon as you don't have a non stop flight.
There are cities in the US without TATL flights, so passengers going there would anyway need to connect in the US, but absence of a TATL is probably rather indicative of the passenger flow.