American also greatly increased its capacity during the period, adding planes and routes and expanding passenger capacity by 19.9 percent beyond last year's first quarter.
Operating leases allow airlines to add planes when and where they need them, without adding debt.
The new proposal allows airlines to add quieter planes first without necessarily removing the noisier ones.
Since Google Maps has added bicycle, walking, and public transit, perhaps they add planes?
Local opposition appeared to the plan to add planes to the airport.
But Delta plans to add a dozen more planes and new cities to Song's lineup next year.
Porter has expanded its operations since 2006, adding more destinations and planes.
Despite this, the airline continued to add planes and routes to the fleet at a brisk pace.
Federal Express last year expanded its service out of Bradley, adding larger planes.
Two downloadable content packs have been released which add additional planes and two new game modes.