A small short-range Starfleet craft of the late 23rd century used to carry a few standing passengers between orbital facilities and docked starships, memorably seen in Star Trek: The Motion Picture.
Travel pods are compact, box-like vehicles with a large forward window and a docking ring at the rear. They have no seats for passengers, who stand behind the pilot's console during the short hop between an orbital station and a ship in drydock.
The best-known example is seen in Star Trek: The Motion Picture. With the transporters of the refitted Enterprise out of order, Scotty flies Admiral Kirk from the orbital office complex to the ship in a travel pod, taking a slow tour around the hull so that Kirk can see it. In Star Trek II: The Wrath of Khan Kirk, McCoy, Sulu and Uhura arrive by travel pod for the cadet inspection.