A Southwest Airlines 737 flies over Downtown Dallas.
A jet slashes a contrail through the sky over the Mojave National Preserve, California.
An Alaska Airlines 737 prepares to depart from Ketchikan International Airport, Alaska.
A Southwest Airlines 737 flies over Uptown Dallas as it departs nearby Love Field.
A Southwest Airlines Boeing 737 preparing to land at Dallas’ Love Field.
The wing of an American Airlines MD-80, somewhere over the southern United States.
Exterior detail of Southwest Airlines’ Spirit of Kitty Hawk, the world’s first production Boeing 737-300, now on display at Dallas’ Frontiers of Flight Museum at Love Field.