1977/78: ANA Network
The following is ANA (全日空)’s Winter 1977 Network, taken from Official Airline Guide Worldwide Edition – DEC 1977
All flights are weekly, round-trip basis.
1973/74: Continental Micronesia routes
The following is Continental’s Micronesia division routing for 1973/74 Winter, taken from Official Airline Guide Worldwide Edition – MAR 1974
All flights are round-trip, weekly basis Read more 
1977/78: Air Nauru Network
The following is Air Nauru’s 1977/78 Northern Winter network, taken from Official Airline Guide Worldwide Edition – DEC 1977
The unit of the frequency is weekly, round-trip basis. City highlighted in BOLD represents the aircraft’s turn-around point
1973/74: AA South Pacific Routing
The following is American Airlines’ South Pacific routing for 1973/74 Northern Winter season, taken from Official Airline Guide Worldwide Edition – MAR 1974
All flights are roundtrip, weekly basis with Boeing 707-300 Fanjet Read more
1977/78: Southwest Airlines Japan Network
The following is Southwest Airlines (Japan; 南西航空) network in Winter 1977, mainly operating commuter aircraft in the Ryukyu Islands. Data taken from Official Airline Guide Worldwide Edition – DEC 1977
Southwest Airlines (Japan) today is known as Japan TransOcean Air (日本トランスオーシャン航空), or JTA, under JAL Group
1977/78: TOA Domestic Airlines Network
The following is TOA Domestic Airlines (東亜国内航空) network in Winter 1977, taken from Official Airline Guide Worldwide Edition – DEC 1977
All flights are weekly, round-trip basis.
1977/78: TWA International Routes
The following is the routing of TWA’s International Service for the Winter 1977/78 Season, taken from Official Airline Guide Worldwide Edition – DEC 1977
The unit of the frequency is on weekly, round-trip basis.
1977/78: nwa/Northwest Orient Network
The following is nwa (or known as Northwest Orient) route network in 1977/78. It mainly operates service between US and Asia.
Data is taken from Official Airline Guide Worldwide Edition – DEC 1977.
1977/78: PanAm Routes
The following is PanAm’s 1977/78 Winter International Network.
Note there may be some discrepancies regarding aircraft rotations on service to Montevideo, Melbourne and Sydney.
Data taken from Official Airline Guide Worldwide Edition – DEC 1977.
