current logo (since mid-2004)
previous logo (1993-2004)
The previous 2 PHL
logos (pre-1993) are not pictured (No Yahoo nor Google images available)
From 1990-1993, PHL
's logo consisted of the letters P H L obliqued with a plane attached to the horizontal piece of the letter L.
From the mid-80s to 1990, PHL
's logo featured a Liberty Bell with a plane pointing up inside it.
"TransEastern! You'll feel like you've never left the ground because we treat you like dirt!" SNL Parady ad circa 1981