Jobuilt
The Mammatus is a Jobuilt plane returning from earlier GTA games. Rockstar first showed it in Rockstar's website.
Dodo
The Dodo is a Mammoth plane returning from earlier GTA games.
Duster
First shown: Official Screenshots: Ambrosia 04
Jet
The Jet is a plane returning from earlier GTA games.
Nimbus
The Nimbus is a Buckingham plane returning from earlier GTA games.