At one point he flew to 65 cities in five days.
Delta flies to more than 300 cities in 41 countries.
In February, it flew 6.8 million passengers to 150 cities around the world.
The 50-year-old airline's current fleet flies to more than 45 cities in 34 countries.
In 1984, Braniff began service with 30 jets flying to 25 cities.
American, for example, now flies to only five cities from Reagan National.
For example, American, the biggest airline, flew to just 50 cities in 1975; it now serves more than three times that number.
Japanese airlines now fly to 23 Chinese cities, from barely a dozen a decade ago.
The Europeans are also asking to be allowed to fly to more American cities.
From there, the airline flew to 50 cities in 34 countries worldwide using a fleet of 22 aircraft.