The ride vehicle for Space Mountain is a 3-seater rocket, with two of the rockets in each train. Seats are positioned front to back, so you'll be pretty much riding solo, which can be scary for younger kids who would prefer to sit next to a parent.

While you can certainly ride at the same time as your companion, the seating configuration for Space Mountain depends entirely on which Disney park you are visiting. At Walt Disney World’s Magic Kingdom in Florida, the ride features unique, narrow rockets where passengers sit in a single-file (tandem) line. This means you cannot sit side-by-side; one person sits directly behind the other in their own individual seat. However, if you are at Disneyland in California, the rockets are designed with two-across seating, allowing you to sit right next to your friend or partner throughout the high-speed journey. In both versions, each rider has their own individual lap bar or restraint system for safety. In 2026, it is a common peer-to-peer tip for parents to put smaller children in the seat directly in front of them in the Florida version so they can place their hands on the child's shoulders for comfort, even though they aren't technically "together" in a single shared seat.