And with cargo fees near record lows, many vessels are not earning enough to make debt payments, either.
The majority of revenue came from charges to the airlines: landing charges, passenger and cargo fees, security and hangar charges, and others.
The United States' proposal gave Mexicans a 20% discount on shipping, guaranteed Mexican rights in the zone, allowed the United States to send in military if necessary, and gave the United States most-favored-nation status for Mexican cargo fees.
In 2005, the Partnership called for real-time tracking of all ships, ocean rescue tugs, emergency tow packages, routing agreements, areas to be avoided, increased financial liability, better aids to navigation, enhanced pilotage, mandatory communication protocols, better spill response equipment, increased cargo fees, and vessel traffic risk assessments.
The latter has hiked cargo transit fees five times in the last two years, and Tajikistan too has raised its tariffs twice over the same period.
A recently launched mobile application called Roadie, which connects those who need to ship something quickly with drivers who are already going in that same direction and are willing to haul the cargo for a small fee, has today partnered with Waffle House restaurants.
The Clinton administration had proposed paying for aviation through a combination of the Aviation Trust Fund, which is fed by taxes on passenger tickets, cargo shipments and user fees.
Russia estimates that it loses $2 billion a year in cargo duties and other fees because lack of port capacity has driven shippers to land their goods in neighboring countries.
He said that the fees some cargo operators were asking for Haiti flights might reflect the fact that planes were returning empty, rather than with return loads that could help defray costs.
If the planned merger of United Airlines and Continental Airlines wins approval, that airline will become the new No. 1. Delta's overall revenue, which includes ticket sales, bag and other fees, and cargo, rose 17 percent, to $8.2 billion, in the quarter.
But Senator Snowe said the cost would be covered by extending the statutory authority for the customs commissioner to charge fees for cargo and passengers arriving in the United States.
