The following areas have a Fast Travel Station in them:
Claptrap's Place
Southern Shelf
Three Horns Divide
Three Horns Valley
Southpaw Steam and Power
Happy Pig Motel
Frostburn Canyon
The Dust
Bloodshot Stronghold
Tundra Express
Farmhouse
The Fridge
Outwash
Overlook
Hyperion Bridge
Caustic Caverns
Wildlife Exploitation Preserve
Thousand Cuts
Lynchwood
Opportunity
Eridium Blight
Sawtooth Cauldron
Arid Nexus Boneyard
Arid Nexus Badlands
Sanctuary