http://www.gamereport.com/tgr6/airlines.html
The beautifully airbrushed game board depicts a network of flight routes connecting major cities throughout North America. The routes are divided into five different networks, distinguished by their line style (dotted, dashed, etc). Each route contains from one to three numbered circles along its length. The nine airlines expand from their different hub cities along these initially unowned routes, but each airline is restricted to the use of specific networks. Two decks of cards provide the main impetus for the game's progression. The first is a deck of eighty-four stock cards representing shares in the nine airlines. Each airline has from seven to thirteen shares of stock in the deck. The second deck contains forty-two flight cards. Each flight card has a value from one to fourteen and a frame, the style of which indicates one of the five flight networks. At the start of the game, players are dealt five stock cards and three flight cards.