In Flightline on Roblox, mouse input appears to be part of the default flying controls, and the game’s control guide says mouse control is enabled for flight by default, with an Invert Pitch setting available to change how the mouse feels while flying.

What to try

  1. Open the in-game settings or control/menu screen.
  2. Look for Invert Pitch if the mouse feels reversed.
  1. Make sure you are on a computer with a mouse or touchpad, since Roblox’s mouse and keyboard support is built into the experience.
  1. If mouse movement still does nothing, check whether the game is using a different control mode or whether the camera is currently locked by another input state.

Why this matters

Flightline’s control guides describe mouse control as the normal way to steer the aircraft, while keyboard keys handle things like throttle, landing gear, and flaps. Roblox also allows experiences to use default mouse behavior, custom mouse locking, or scripted controls, so the exact feel can vary by game settings.

Practical note

If you meant “how do I make the cursor usable in Flightline UI,” that depends on whether the game hides or locks the mouse during flight; Roblox experiences can enable, disable, or lock the cursor through their own scripts. If you meant “how do I fly with mouse,” the short answer is that Flightline already supports mouse control, and the main adjustment most players mention is Invert Pitch.

TL;DR: Mouse input in Flightline should already work for flying; check the game settings for Invert Pitch and make sure the experience isn’t locking the cursor in a special control mode.