According to the Official Airline Guide (OAG), Wien was operating interchange passenger service in conjunction with Pan American World Airways (Pan Am) with Boeing 727-100 jetliners in the fall of 1981 between Alaska and destinations in the lower 48 states. The OAG lists these no change of plane through flights to Alaska operating a routing of Miami (MIA) - New Orleans (MSY) - Houston (IAH) - Seattle (SEA) - Anchorage (ANC) and from Alaska on a routing of Anchorage - Seattle - Houston - New Orleans with Wien flight crews operating the service between Anchorage and Seattle and Pan Am flight crews operating the Houston, New Orleans and Miami service with Seattle being the interchange point (also known as a "transport hub") between the two airlines.