Of the 75, 9 airlines control 94 percent of revenue-passenger miles.
Today, just eight major airlines control well over 90 percent of all domestic traffic.
The airline, based in Dallas, now controls nearly 50 percent of the gates at Kansas City's airport.
The airline controls most airport services, even running the duty-free shops.
Plus, the airlines usually control the area immediately around their gates and in any private airport clubs.
Large airlines now control virtually all of the landing and takeoff slots at those airports.
Today, the top eight airlines control more than 90 percent of the market, down from 15 airlines in 1984.
Fewer large airlines control the industry now than 20 years ago.
Each airline controls about 3 percent of the trans-Atlantic traffic.
The airline controls 83 percent of Britain's scheduled overseas service.