The ride, which would be called “the X,” would be pitched to business travelers willing to pay a bit more to get to O’Hare faster and more comfortably. The anticipated price would be $20 to $25, about the cost of a ride-share cab. The Blue Line gets you from downtown to O’Hare on a $2.50 fare, and from O’Hare to downtown for $5. Would enough travelers switch over to “the X” to make it worthwhile?