Air Canada had passenger revenues of CA$10.2 billion in 2011.
But the cost of using them was low enough to offset the loss in passenger revenue, airline officials said.
Southwest also said that its online passenger revenue was up 140 percent, to more than $250 million, in the fourth quarter of 1999.
From the mid-1920s onward, road competition began to take its toll on the passenger revenue.
They account for about 20% of the company's passenger revenues.
The Republican plan assumes that passenger revenue will remain at this year's level, making the funds unnecessary.
Jones hoped to increase passenger revenue by promoting Brill as a spa.
Despite the loss of passenger revenue, the bar attached to the station did not close until 1957.
They also include a favorable adjustment to passenger revenues, which increased net earnings by $67 million.
So Memphis held very little interest to them as a source of long-distance passenger revenue.